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A meta‐analysis on the effects of just‐below versus round pricesVerändern Just-below-Preise Kaufentscheidungen und Preiswahrnehmung gegenüber runden Preisen?study The Metaverse: A new digital frontier for consumer behaviorAbstract This work offers a multidisciplinary perspective on the Metaverse, focusing on its potential implications for consumer behavior. We begin by proposing a conceptualization of the Metaverse as being uniquely defined by the convergence of five key elements—it is digitally mediated, spatial, immersive, shared, and operates in real‐time. We then discuss how these components might collectively alter our understanding of consumer behavior in three domains: consumer identity, social influence, and ownership. We conclude by outlining an agenda for future research to help broaden our understanding of the Metaversal marketplace and its impact on consumer behavior. This work serves as a starting point to characterize a shift that is unfolding in the marketplace and to consider, through a consumer behavior lens, the numerous changes it may bring.study Modeling Consumers’ Adoption Intentions of Remote Mobile Payments in the United Kingdom: Extending UTAUT with Innovativeness, Risk, and TrustWelche Faktoren beeinflussen die Nutzungsabsicht britischer Nicht-Nutzer von Remote Mobile Payment?study Monitoring and implementation of salt reduction initiatives in Africa: A systematic review.This systematic review aims to document salt consumption patterns and the implementation status and potential impact of salt reduction initiatives in Africa, from studies published between January 2009 and November 2019. Studies were sourced using MEDLINE, Embase, Cochrane Library electronic databases, and gray literature. Of the 887 records retrieved, 38 studies conducted in 18 African countries were included. Twelve studies measured population salt intake, 11 examined salt level in foods, 11 assessed consumer knowledge, attitudes, and behaviors, 1 study evaluated a behavior change intervention, and 3 studies modeled potential health gains and cost savings of salt reduction interventions. The population salt intake studies determined by 24-hour urine collections showed that the mean (SD) salt intake in African adults ranged from 6.8 (2.2) g to 11.3 (5.4) g/d. Salt levels in foods were generally high, and consumer knowledge was fairly high but did not seem to translate into salt lowering behaviors. Modeling studies showed that interventions for reducing dietary sodium would generate large health gains and cost savings for the health system. Despite this evidence, adoption of population salt reduction strategies in Africa has been slow, and dietary consumption of sodium remains high. Only South Africa adopted legislation in 2016 to reduce population salt intake, but success of this intervention has not yet been fully evaluated. Thus, rigorous evaluation of the salt reduction legislation in South Africa and initiation of salt reduction programs in other African countries will be vital to achieving the targeted 30% reduction in salt intake by 2025.study The Effect of Electronic Word of Mouth Communications on Intention to Buy: A Meta-AnalysisWelche eWOM-Faktoren beeinflussen die Kaufabsicht von Konsument:innen?study Digital piracy and the perception of price fairness: evidence from a field experimentIst wahrgenommene Preisunfairness mit digitaler Piraterie verbunden und welche Mechanismen erklären den Zusammenhang?study Meta-analysis: integrating accumulated knowledgeDiese Studie ist Teil der kuratierten Evidence Base.study Accurately measuring willingness to pay for consumer goods: a meta-analysis of the hypothetical biasWie groß ist der hypothetische Bias bei WTP-Messungen und sind direkte oder indirekte Messverfahren genauer?study Big data analytics in E-commerce: a systematic review and agenda for future researchWie schafft Big Data Analytics im E-Commerce Geschäftswert und wie unterscheidet es sich von traditioneller Analytik?study AI-based chatbots in customer service and their effects on user complianceWie beeinflussen anthropomorphe Chatbot-Cues und Foot-in-the-Door die User Compliance?study Partial least squares structural equation modeling-based discrete choice modeling: an illustration in modeling retailer choiceKann PLS-SEM auf Discrete-Choice-Daten angewandt werden, um Attributwichtigkeit direkt zu schätzen und vergleichbare Ergebnisse wie Conditional Logit zu liefern?study How effective are social norms interventions in changing the clinical behaviours of healthcare workers? A systematic review and meta-analysis.Healthcare workers perform clinical behaviours which impact on patient diagnoses, care, treatment and recovery. Some methods of supporting healthcare workers in changing their behaviour make use of social norms by exposing healthcare workers to the beliefs, values, attitudes or behaviours of a reference group or person. This review aimed to evaluate evidence on (i) the effect of social norms interventions on healthcare worker clinical behaviour change and (ii) the contexts, modes of delivery and behaviour change techniques (BCTs) associated with effectiveness. Systematic review and meta-analysis of randomised controlled trials. Searches were undertaken in seven databases. The primary outcome was compliance with a desired healthcare worker clinical behaviour and the secondary outcome was patient health outcomes. Outcomes were converted into standardised mean differences (SMDs). We performed meta-analyses and presented forest plots, stratified by five social norms BCTs (social comparison, credible source, social reward, social incentive and information about others' approval). Sources of variation in social norms BCTs, context and mode of delivery were explored using forest plots, meta-regression and network meta-analysis. Combined data from 116 trials suggested that social norms interventions were associated with an improvement in healthcare worker clinical behaviour outcomes of 0.08 SMDs (95%CI 0.07 to 0.10) (n = 100 comparisons), and an improvement in patient health outcomes of 0.17 SMDs (95%CI 0.14 to 0.20) (n = 14), on average. Heterogeneity was high, with an overall I2 of 85.4% (healthcare worker clinical behaviour) and 91.5% (patient health outcomes). Credible source was more effective on average, compared to control conditions (SMD 0.30, 95%CI 0.13 to 0.47, n = 7). Social comparison also appeared effective, both on its own (SMD 0.05, 95%CI 0.03 to 0.08, n = 33) and with other BCTs, and seemed particularly effective when combined with prompts/cues (0.33, 95%CI 0.22 to 0.44, n = 5). Social norms interventions appeared to be an effective method of changing the clinical behaviour of healthcare workers and have a positive effect on patient health outcomes in a variety of health service contexts. Although the overall result is modest and variable, there is the potential for social norms interventions to be applied at large scale. PROSPERO CRD42016045718 .study A systematic review and meta-analysis of visual cues and primes for nudging consumption-related behaviours.Healthy diets are crucial for maintaining overall well-being and reducing risk of health complications. Visual cues and primes are popular implicit nudging techniques for promoting healthier consumption habits. The present review and meta-analysis was conducted and reported according to PRISMA guidelines. It aimed to evaluate the effectiveness of these cues and primes for nudging consumption-related behaviours. Six electronic databases were comprehensively searched for experimental studies on the use of non-marketing-based visual cues/primes on food/beverage consumption. Sixty-six studies from 52 articles were included, resulting in 205 comparisons categorised into seven groups for separate analyses: (1) healthy food- and (2) body-related nudges, and (3) unhealthy food- and (4) body-related nudges, versus neutral controls; (5) mixed-health food- and (6) body-related comparisons; and (7) nudges not inherently health-related. Overall, nudges effectively influenced consumption-related behaviours. Healthier food- and body-nudges encouraged healthier behaviours relative to neutral controls and less healthy nudges, and unhealthy food-nudges, relative to neutral controls. Non-health-related nudges influenced behaviours in the expected direction, relative to comparison/control conditions. Nudge effectiveness, especially for unhealthy food-nudges, was moderated by participant age and weight, nudge timing (prime/cue) outcome measure (intake/choice), health (mixed/healthy/unhealthy), and whether the outcome was real or hypothetical. A range of participant, nudge, and outcome-related mechanisms proposed to underlie nudge effectiveness were also identified. Findings supported the efficacy of visual cues and primes for eliciting changes in consumption-related behaviours, indicating they may be effective for encouraging healthier consumption, when the right nudges are used. Results also indicated that different forms of nudges may be more appropriate in different circumstances (e.g., for different types of participants or food-related outcomes). Further research is needed to thoroughly comprehend the mechanisms underlying these nudges and their effectiveness.study Risk, trust, and the interaction of perceived ease of use and behavioral control in predicting consumers’ use of social media for transactionsWie beeinflussen Risiko, Vertrauen, PEU und PBC die Nutzungsabsicht von Social-Media-Plattformen für Transaktionen?study A systematic literature review and meta-analysis: The Theory of Planned Behavior's application to understand and predict nutrition-related behaviors in youth.Welche TPB-Konstrukte sagen Ernährungsintentionen/-verhalten bei Kindern und Jugendlichen vorher, und verbessern TPB-basierte Interventionen Verhalten?study Making sense of the “clean label” trends: A review of consumer food choice behavior and discussion of industry implicationsWie lässt sich Clean Label definieren, welche Faktoren treiben Verbraucherwahrnehmung/-präferenz, und welche Implikationen ergeben sich für Industrie/Politik?study The nudge strategies for weight loss in adults with obesity and overweight: A systematic review and meta-analysis.Obesity and overweight conditions have become major health challenges worldwide. The exploration of effective weight loss strategies is essential. Nudges are currently advancing approaches that represent a new and better method for changing the behaviors of people. However, the effectiveness of nudge interventions on weight loss in overweight people who may be obese has not been synthesized in a systematic manner. In this study, a systematic literature search was performed. Only randomized controlled trials (RCTs) were considered. Weighted mean differences (WMDs) and 95% confidence intervals (CIs) were calculated as summary statistics. In total, 25 RCTs involving a population of 5,929 individuals were included. Significant effects of the nudge strategy on weight loss (WMD: -0.96 kg, 95% CI: -1.49 to -0.43), body mass index (WMD: -0.3 kg/m2, 95% CI: -0.41 to -0.19) and waist circumference (WMD: -0.75 cm, 95% CI: -1.23 to -0.27) were observed. The subgroup analysis showed that the reduction in body weight associated with nudge interventions was significant in younger and more obese people. Moreover, the effect of nudge intervention on weight loss weakened over time. Overall, the nudge strategy can promote changes in weight loss, body mass index and waist circumference of adults, albeit at a mild magnitude and in particular types of individuals. Nudge strategies can be recommended to clinical practitioners and policy-makers to promote obesity management.study Generalizations on consumer innovation adoption: A meta-analysis on drivers of intention and behaviorWelche Innovations- und Adopter-Merkmale sagen Konsumenten-Adoptionsintention und tatsächliches Adoptionsverhalten voraus?study Nudging Toward Sustainable Food Consumption at University Canteens: A Systematic Review and Meta-Analysis.This systematic literature review and meta-analysis investigated the effectiveness of the nudging approach toward sustainable food consumption in the university canteen context. The systematic literature search was carried out in 5 databases, Web of Science, PubMed, Scopus, ProQuest, and the Royal Library, identifying 14 eligible studies and selecting 9 articles containing adequate information for meta-analysis. The nudging strategies were classified using the typology of interventions in the proximal physical microenvironments framework that resulted in 5 different intervention types: availability, position, size, presentation, and information that belonged to either intervention class-altering properties or placement. The study identified presentation, availability, and information as the most promising nudge intervention for achieving sustainable food consumption at the university canteen or similar settings. Nudging by altering the properties had a small effect size (d = 0.16), and nudging by altering placement showed a medium effect size (d = 0.21). Nudging interventions implemented after understanding consumers' current behavior showed positive effectiveness toward sustainable food consumption rather than implementing random nudges. It is important that future studies aim to achieve sustainable food consumption by understanding canteen user food preferences and food choice motives before designing a nudging strategy.study Testing Retail Marketing-Mix Effects on Patronage: A Meta-AnalysisWelche Retail-Marketing-Mix-Instrumente treiben Patronage Outcomes und wie moderieren Kontext, Land und Methode?study Online grocery shopping before and during the COVID-19 pandemic: A meta-analytical review.The COVID-19 pandemic has forced people to limit their physical interactions, which has led to explosive growth in online grocery shopping. However, there is no clear consensus in the retailing literature on whether consumers prefer to buy groceries online. The objective of this current study is to synthesize research about online grocery shopping published before and during the COVID-19 pandemic and to develop a conceptual framework about online grocery purchase intentions and their determinants, the mediation effects of consumers' attitudes, the moderating effects of COVID-19, and control variables. The meta-analysis presents data derived from 50 independent samples with a sample size of 20,538 respondents. Selected determinants were identified as triggers for online grocery purchase intentions, and perceived usefulness and consumer attitude were identified as important mediators between determinants and intentions. The findings clarify the mechanisms behind the increase in online grocery shopping during the pandemic by presenting a decrease in the importance of its strongest determinants (i.e., perceived usefulness and attitude). Based on these findings, we present contributions to theory, managerial implications, and future research directions.study The effects of antidepressants on cardiometabolic and other physiological parameters: a systematic review and network meta-analysis.Antidepressants induce physiological alterations; however, the degree to which these occur in treatment with various antidepressants is unclear. We aimed to compare and rank antidepressants based on physiological side-effects by synthesising data from randomised controlled trials (RCTs). We searched MEDLINE, EMBASE, PsycINFO, ClinicalTrials.gov, and the US Food and Drug Administration (FDA) website from database inception to April 21, 2025. We included single-blinded and double-blinded RCTs comparing antidepressants and placebo in acute monotherapy of any psychiatric disorder. We did frequentist random-effects network meta-analyses to investigate treatment-induced changes in weight; total cholesterol; glucose; heart rate; systolic and diastolic blood pressure; corrected QT interval (QTc); sodium; potassium; aspartate transferase (AST); alanine transaminase (ALT); alkaline phosphatase (ALP); bilirubin; urea; and creatinine. We did meta-regressions to examine study-level associations between physiological change and age, sex, and baseline weight. We estimated the correlation between depressive symptom severity change and metabolic parameter change. Of 26 252 citations, 151 studies and 17 FDA reports met inclusion criteria. The overall sample included 58 534 participants, comparing 30 antidepressants with placebo. Median treatment duration was 8 weeks (IQR 6·0-8·5). We observed clinically significant differences between antidepressants in terms of metabolic and haemodynamic effects, including an approximate 4 kg difference in weight-change between agomelatine and maprotiline, over 21 beats-per-minute difference in heart rate change between fluvoxamine and nortriptyline, and over 11 mmHg difference in systolic blood pressure between nortriptyline and doxepin. Paroxetine, duloxetine, desvenlafaxine, and venlafaxine were associated with increases in total cholesterol and, for duloxetine, glucose concentrations, despite all drugs reducing bodyweight. There was strong evidence of duloxetine, desvenlafaxine, and levomilnacipran increasing AST, ALT, and ALP concentrations, although the magnitudes of these alterations were not considered clinically significant. We did not find strong evidence of any antidepressant affecting QTc, or concentrations of sodium, potassium, urea, and creatinine to a clinically significant extent. Higher baseline bodyweight was associated with larger antidepressant-induced increases in systolic blood pressure, ALT, and AST, and higher baseline age was associated with larger antidepressant-induced increases in glucose. We did not observe an association between changes in depressive symptoms and metabolic disturbance. We found strong evidence that antidepressants differ markedly in their physiological effects, particularly for cardiometabolic parameters. Treatment guidelines should be updated to reflect differences in physiological risk, but choice of antidepressant should be made on an individual basis, considering clinical presentation and preferences of patients, carers, and clinicians. National Institute for Health Research, Maudsley Charity, Wellcome Trust, Medical Research Council.study Impact of price reductions, subsidies, or financial incentives on healthy food purchases and consumption: a systematic review and meta-analysis.Erhöhen Preisreduktionen, Subventionen oder finanzielle Anreize gesunde Lebensmittelkäufe und -konsum?study Unfair commercial practices in a pit market: evidence from an artefactual field experimentErhöhen kommerzielle Praktiken Preise und Cheating, und können formelle/informelle Sanktionen oder Regret Nudges Effizienz wiederherstellen?study Interventions involving nudge theory for COVID-19 vaccination: A systematic review and meta-analysis.New approaches to mitigate vaccine hesitancy and improve vaccine uptake are urgently needed. Nudging has shown effective results in several health areas. However, the effectiveness of interventions involving nudge theory in increasing COVID-19 vaccination remains unclear. We searched PubMed, Web of Science, and Scopus for randomized controlled trials published before December 31, 2022, to determine whether interventions involving nudge theory improved COVID-19 vaccination behavior and intent. Risk ratio (RR) and a 95% confidence interval (CI) were used as pooled measures to assess vaccination behavior. Intention to vaccinate was reported in a narrative synthesis. Sixteen randomized controlled trials involving 176,125 participants were included. Interventions involving nudge theory weakly boosted the COVID-19 vaccine uptake rate (RR = 1.21, 95% CI [1.07, 1.36], p < .01). Subgroup analysis showed a weak positive effect of social norms (RR = 2.04, 95% CI [1.61, 2.57]), defaults (RR = 1.32, 95% CI [1.03, 1.69]), and salient reminders (RR = 1.19, 95% CI [1.04, 1.36]). Nudge interventions integrating multiple components were more efficacious in increasing vaccination rates compared to nudge alone. The effect of nudging interventions weakened over time (p < .001). Most studies (10 of 11) involving vaccination intention outcomes showed positive or partially positive results. Interventions involving nudge theory can promote COVID-19 vaccination behavior and intentions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).study Interventions to reduce meat consumption by appealing to animal welfare: Meta-analysis and evidence-based recommendations.Reducing meat consumption may improve human health, curb environmental damage, and limit the large-scale suffering of animals raised in factory farms. Most attention to reducing consumption has focused on restructuring environments where foods are chosen or on making health or environmental appeals. However, psychological theory suggests that interventions appealing to animal welfare concerns might operate on distinct, potent pathways. We conducted a systematic review and meta-analysis evaluating the effectiveness of these interventions. We searched eight academic databases and extensively searched grey literature. We meta-analyzed 100 studies assessing interventions designed to reduce meat consumption or purchase by mentioning or portraying farm animals, that measured behavioral or self-reported outcomes related to meat consumption, purchase, or related intentions, and that had a control condition. The interventions consistently reduced meat consumption, purchase, or related intentions at least in the short term with meaningfully large effects (meta-analytic mean risk ratio [RR] = 1.22; 95% CI: [1.13, 1.33]). We estimated that a large majority of population effect sizes (71%; 95% CI: [59%, 80%]) were stronger than RR = 1.1 and that few were in the unintended direction. Via meta-regression, we identified some specific characteristics of studies and interventions that were associated with effect size. Risk-of-bias assessments identified both methodological strengths and limitations of this literature; however, results did not differ meaningfully in sensitivity analyses retaining only studies at the lowest risk of bias. Evidence of publication bias was not apparent. In conclusion, animal welfare interventions preliminarily appear effective in these typically short-term studies of primarily self-reported outcomes. Future research should use direct behavioral outcomes that minimize the potential for social desirability bias and are measured over long-term follow-up.study Studie: Welche Faktoren treiben die Kaufabsicht für KI-generierte kulturelle und kreative Produkte?Welche Faktoren treiben die Kaufabsicht für KI-generierte kulturelle und kreative Produkte?study A systematic review and meta-analysis of the effects of Entertainment-Education interventions on persuasive health outcomes.Entertainment-Education (EE) refers to the integration of entertaining and educational components within popular media, with the objective of positively impacting social and health behaviors. This study aims to synthesize the effects of EE for health communication. In particular, the effects of EE on health knowledge, intentions, attitudes, behavior, and self-efficacy were analyzed. Further, a persuasion index was created based on the primary outcomes. Only controlled or randomized-controlled studies were considered, and after screening, K = 39 of N = 4183 studies were included. Pairwise meta-analyses were conducted to determine the effects of EE on persuasive health outcomes. Additionally, potential effects of the subgroups delivery mode, gender, healthcare, type of control group and type and taxonomy of health behavior on a weighted persuasion index were analyzed. Analyses revealed evidence for significant small to moderate effects on all outcomes, with the largest effect sizes on knowledge and self-efficacy. Subgroups seem to account for a significant amount of heterogeneity, as a significant effect could be observed for all analyzed subgroups except for healthcare and gender. The meta-analysis suggests that EE is suitable for the communication of health messages, particularly when targeting prevention topics. However, it is imperative to exercise caution when interpreting the results, and further research is needed.study Pay-what-you-want, identity, and self-signaling in marketsWie beeinflussen Pay-what-you-want-Preise, Charity-Framing und Beobachtbarkeit Kaufwahrscheinlichkeit, Zahlungshöhe und Selbstbild?study Ethnic diversity deflates price bubblesMarkets are central to modern society, so their failures can be devastating. Here, we examine a prominent failure: price bubbles. Bubbles emerge when traders err collectively in pricing, causing misfit between market prices and the true values of assets. The causes of such collective errors remain elusive. We propose that bubbles are affected by ethnic homogeneity in the market and can be thwarted by diversity. In homogenous markets, traders place undue confidence in the decisions of others. Less likely to scrutinize others' decisions, traders are more likely to accept prices that deviate from true values. To test this, we constructed experimental markets in Southeast Asia and North America, where participants traded stocks to earn money. We randomly assigned participants to ethnically homogeneous or diverse markets. We find a marked difference: Across markets and locations, market prices fit true values 58% better in diverse markets. The effect is similar across sites, despite sizeable differences in culture and ethnic composition. Specifically, in homogenous markets, overpricing is higher as traders are more likely to accept speculative prices. Their pricing errors are more correlated than in diverse markets. In addition, when bubbles burst, homogenous markets crash more severely. The findings suggest that price bubbles arise not only from individual errors or financial conditions, but also from the social context of decision making. The evidence may inform public discussion on ethnic diversity: it may be beneficial not only for providing variety in perspectives and skills, but also because diversity facilitates friction that enhances deliberation and upends conformity.study The Role of Virtual Communities in Gambling and Gaming Behaviors: A Systematic Review.Gambling opportunities are facilitated by the growth of the Internet and social media platforms. Digital games also increasingly include monetary features, such as microtransactions, blurring the line between gambling and gaming. The Internet provides a variety of virtual communities for gamblers and gamers, but comprehensive research on these communities and their relevance in gambling and monetary gaming behaviors remains scarce. This paper summarizes research of online gambling and monetary gaming communities based on a systematic literature review. A systematic literature search was conducted from five databases: Scopus, Web of Science, PsycINFO, Social Science Premium Collection, and EBSCOhost. The search was limited to empirical articles that focused on gambling or gaming involving money and examined online interaction between gamblers or gamers. Preliminary search resulted in 1056 articles, from which 55 were selected for the analyses based on pre-determined criteria. According to results, online communities serve different functions in gambling and gaming behaviors. Gambling communities are typically forums for discussing and sharing gambling experiences, strategies, and tips as well as gambling problems, while gaming communities are inherently embedded inside a game being an essential part of the gaming experience. Identification with virtual communities influences gambling behavior and monetary gaming behavior through mechanisms of perceived norms, social influence, and community feedback. Whereas some gambling communities may provide protection from excessive gambling habits, gaming communities seem to solely motivate gaming behavior and purchase intentions. The role of online communities should be acknowledged in prevention and treatment of gambling and gaming problems.study Studie: Welche faktischen Point-of-Consumption-Appeals und Endorsements erhöhen Salatkonsum von Tourist:innen?Welche faktischen Point-of-Consumption-Appeals und Endorsements erhöhen Salatkonsum von Tourist:innen?study Predicting the revisit intention of volunteer tourists using the merged model between the theory of planned behavior and norm activation modelDespite the importance of the theory of planned behavior (TPB) and norm activation model (NAM) in explicating revisit intention, predictions based on the merging of these theories remain sparse in the youth volunteer tourism segment. To understand revisit intention formation, a meta-analysis is performed to draw a macro conclusion using prosocial studies as a representative of volunteer tourism in investigating the predictive power of the aforementioned-merged theories. Subsequently, latent growth curve modeling is applied to extend the understanding of tourist type identification to volunteer tourism research. The introduction of NAM into TPB marginally adds value to predictive power.study The effectiveness of nudge-based interventions on self-monitoring behaviours among patients with cardiometabolic diseases: a systematic review and meta-analysisCardiometabolic diseases are major global health concerns, leading to high morbidity and mortality. Self-monitoring is crucial for managing these conditions; however, the adherence to self-monitoring remains suboptimal. Nudge-based interventions, such as reminders and automatic prescription refills, have shown promise in improving self-monitoring behaviours. This systematic review and meta-analysis evaluated the effectiveness of nudge-based interventions on self-monitoring behaviours and health outcomes in this population. Thirty-five randomised controlled trials from seven databases (earliest available date to March 2025) were included. Nudge strategies were categorised according to the choice architecture taxonomy by Münscher et al. Meta-analysis demonstrated that nudge-based interventions were associated with significant improvements in self-monitoring behaviours in cardiometabolic patients (Hedge's g = 0.56; 95% CI [0.44, 0.69]; p < 0.001) as well as reductions in HbA1c levels (MD = -0.50; p < 0.001), systolic blood pressure (MD = -4.47; p < 0.001), and diastolic blood pressure (MD = -2.02; p < 0.05) compared to the control group. Subgroup analyses indicated that the effect size of nudge interventions may vary by delivery mode, components, and intervention duration. Our findings suggest that integrating diverse behavioural nudges could optimise management strategies for these patients, enhancing both self-monitoring adherence and health outcomes.study Attention to Social Comparison Information: An Individual Difference Factor Affecting Consumer ConformityInterpersonal influence in consumer behavior is moderated by the extent of consumer sensitivity to social comparison information concerning product purchase and usage behavior (cf. Calder and Burnkrant 1977). Two survey studies indicate that Lennox and Wolfe's (1984) attention-to-social-comparison-information (AT-SCI) scale has adequate convergent and discriminant validity and moderates the relative influence of normative consequences on behavioral intentions, as predicted. A quasi-experiment and an experiment in which control subjects under no social pressure are compared with high and low ATSCI subjects under pressure reveal that high ATSCI subjects are more likely to comply with normative pressures.study The Fire of Desire: A Multisited Inquiry into Consumer PassionDesire is the motivating force behind much of contemporary consumption. Yet consumer research has devoted little specific attention to passionate and fanciful consumer desire. This article is grounded in consumers' everyday experiences of longing for and fantasizing about particular goods. Based on journals, interviews, projective data, and inquiries into daily discourses in three cultures (the United States, Turkey, and Denmark), we develop a phenomenological account of desire. We find that desire is regarded as a powerful cyclic emotion that is both discomforting and pleasurable. Desire is an embodied passion involving a quest for otherness, sociality, danger, and inaccessibility. Underlying and driving the pursuit of desire, we find self-seduction, longing, desire for desire, fear of being without desire, hopefulness, and tensions between seduction and morality. We discuss theoretical implications of these processes for consumer research.study The Mere Categorization Effect: How the Presence of Categories Increases Choosers' Perceptions of Assortment Variety and Outcome SatisfactionWhat is the effect of option categorization on choosers' satisfaction? A combination of field and laboratory experiments reveals that the mere presence of categories, irrespective of their content, positively influences the satisfaction of choosers who are unfamiliar with the choice domain. This “mere categorization effect” is driven by a greater number of categories signaling greater variety among the available options, which allows for a sense of self-determination from choosing. This effect, however, is attenuated for choosers who are familiar with the choice domain, who do not rely on the presence of categories to perceive the variety available.study A systematic review and meta-analysis of the effectiveness of social norms messaging approaches for improving health behaviours in developed countries.Social norms approaches have been widely applied in health promotion as a cost-effective behaviour-change strategy, but have been little evaluated as a whole. We conducted a pre-registered systematic review and meta-analysis of randomized controlled trials using social norms messaging in developed countries targeted at changing health behaviours among 16+-year-olds to evaluate their effectiveness. Relevant studies were identified through searches in PsycINFO, Medline, Embase, Web of Science, TRIP, Cochrane and grey literature sources. Risk of bias was assessed independently by two reviewers using the Cochrane RoB 2 tool. A random-effects meta-analysis standardized effect sizes to Cohen's d, assessed heterogeneity with I² and applied robust Bayesian meta-analysis to adjust for publication bias. Searches resulted in 89 studies (n = 85,759), which exhibited a small effect of social norms messaging on health behaviours (Cohen's d = 0.1, 95% confidence interval (CI) [0.09, 0.19], P < 0.001). However, this effect disappeared after controlling for publication bias. We conducted moderator analyses, finding no significant differences from the overall effect for different types of social norms message, delivery modalities, health domains or target populations. The review is limited by the lack of studies assessing whether normative information changed participant perceptions, inconsistent use of manipulation checks, and high heterogeneity across studies in terms of target behaviour, population and intervention delivery, affecting the robustness of conclusions. Our analysis suggests that when appropriately controlling for publication bias, social norms messages are not effective at improving health behaviours. Thus, future attempts at improving public health should focus on alternative approaches.study Crowdsourcing Consumer ResearchWann ist Crowdsourcing für Consumer Research valide und welche Risiken müssen kontrolliert werden?study How Well Do Consumer-Brand Relationships Drive Customer Brand Loyalty? Generalizations from a Meta-Analysis of Brand Relationship ElasticitiesWie stark treiben verschiedene Consumer-Brand-Relationship-Konstrukte Kundenmarkenloyalität, und unter welchen Bedingungen ist der Zusammenhang stärker oder schwächer?study Using Social Media to Disseminate Behavior Change Interventions: Scoping Review of Systematic Reviews.Compared with implementation, the conceptual frameworks, strategies, and outcomes of efforts to disseminate behavioral interventions are less developed. We conducted a scoping review of the systematic reviews of social media strategies to disseminate behavior change interventions. We focused on the common themes in the methodology and evaluation frameworks of social media-based dissemination strategies. This scoping review aims to identify common themes in the design, delivery, and impact assessment of social media-based dissemination strategies for behavior change interventions. We searched the Epistemonikos database (until 2024) to retrieve systematic reviews on social media dissemination. A total of 2 independent reviewers screened the abstracts and full texts. We extracted and classified the data on the characteristics of the included reviews and outcome assessments. We followed the reflexive thematic analysis steps to identify the main themes of the ingredients of the social media dissemination strategies. We screened 613 records based on the title and abstract, followed by the assessment of 100 full texts of potentially eligible reviews. The 43 included reviews assessed a median of 20 empirical studies (IQ range 21). The study designs, intervention strategies, and evaluation measures of social media dissemination interventions were diverse. We classified the main themes of the ingredients of social media dissemination strategies into 4 main categories: 1-way spread (aiming for spread and diffusion, with little or no effort to develop 2-way communications or engage target users in conversation and feedback; n=37), invoking conversations (facilitating and enhancing the 1-way spread using conversational and community features of social media to promote dialogue among users or between the users and experts; n=21), peer motivation (facilitate sharing individual behavior on social media to receive confirmation, feedback, and support, to further personalize the dissemination; n=11), and miscellaneous (eg, dissemination through online multiplayer games; n=3). The main outcomes of dissemination efforts were reach and engagement (n=12), user perception of their knowledge, intention to change the behavior, feasibility and acceptability of the intervention (n=24), and impact on health and health-related behaviors (n=43). The majority of theoretical frameworks that were identified by the reviews were individual and social behavior change models (including the theory of planned behavior and Social Cognitive Theories). A smaller number of reviews also identified social and contextual models (eg, Social Network Theory), dissemination and implementation frameworks (eg, Diffusion of Innovation), and social marketing and action models (eg, community mobilization and Reader-to-Leader framework). Researchers use various features of social media (eg, peer-to-peer sharing, online engagement in conversations, one-on-one, or with a broad audience), formation of clusters and communities, and peer feedback to complement and enhance the 1-way dissemination. Further research is needed to inform the theoretical underpinnings and the interventional ingredients of social media dissemination strategies.study A Systematic Review of Nudge Interventions to Optimize Medication Prescribing.Kann eine multifaktorielle Intervention mit verhaltensbezogenen Komponenten unangemessene Antibiotikaverschreibungen in ED/Urgent-Care-Settings reduzieren?study The Constructive, Destructive, and Reconstructive Power of Social NormsDespite a long tradition of effectiveness in laboratory tests, normative messages have had mixed success in changing behavior in field contexts, with some studies showing boomerang effects. To test a theoretical account of this inconsistency, we conducted a field experiment in which normative messages were used to promote household energy conservation. As predicted, a descriptive normative message detailing average neighborhood usage produced either desirable energy savings or the undesirable boomerang effect, depending on whether households were already consuming at a low or high rate. Also as predicted, adding an injunctive message (conveying social approval or disapproval) eliminated the boomerang effect. The results offer an explanation for the mixed success of persuasive appeals based on social norms and suggest how such appeals should be properly crafted.study Consumers' Drivers of Perception and Preference of Fermented Food Products and Beverages: A Systematic Review.The fermentation of food products is a transformation and preservation process in which different metabolites are generated, contributing to consumer health. In this sense, this systematic review aims to analyze the factors that guide the perception and preference for fermented foods. In addition, different perspectives are proposed based on the findings. The systematic search was carried out in four databases: Emerald Insight, Science Direct, Wiley Online Library, and Multidisciplinary Digital Publishing Institute. The keywords used were (Title/Abstract): fermented products, overall liking, purchase intention, expectations, emotions, interculturality, perception, and consumers. Ninety-two articles (n = 92) were selected and classified. The factors identified were (1) biological and physiological, (2) extrinsic product characteristics, (3) intrinsic product characteristics, (4) psychological, (5) situational, and (6) sociocultural. Intrinsic product characteristics were the most relevant, while the situational factors were the least studied. Our main contribution was a multidisciplinary approach to addressing the different factors in an integrated way, allowing a broader perspective of both products and consumers. This approach could help the reader understand consumer behavior and propose product improvements.study Efficiency of In-Store Interventions to Impact Customers to Purchase Healthier Food and Beverage Products in Real-Life Grocery Stores: A Systematic Review and MGrocery stores are important settings to promote healthier food and beverage choices. The present paper aims at reviewing the effectiveness of different types of in-store interventions and how they impact sales of different product category in real grocery stores. Systematic search was conducted in six databases. In-store interventions were categorized according to the framework by Kraak et al. (2017) into one or more of eight interventions (e.g., place, profile, portion, pricing, promotion, healthy default picks, prompting and proximity). This systematic theme-based review follows the preferred reporting items for systematic reviews and meta-analyses (PRISMA) data screening and selection. Thirty-six studies were included in the qualitative synthesis and 30 studies were included in the meta-analysis, representing 72 combinations of in-store interventions. The analysis demonstrates that interventions overall had small significant effect size (ES) using Cohen's d on food purchase behavior (d = 0.17, 95% CI [0.04, 0.09]), with largest ES for pricing (d = 0.21) and targeting fruits and vegetables (d = 0.28). Analysis of ES of in-store interventions show that pricing, and pricing combined with promotion and prompting, effectively impacted purchase behavior. Interventions significantly impacted both sales of healthy and unhealthy products and significantly increased sales of fruits and vegetables, healthy beverage and total volume of healthy products. Results should however be interpreted with some caution, given the relatively low quality of overall evidence and low number of studies and observations for some types of intervention. Further research exploring impact on different in-store interventions and targeting especially unhealthy products are needed.study Compassion fatigue in mental health nurses: A systematic review.WHAT IS KNOWN ON THE SUBJECT?: Compassion fatigue is the result of the unique stressors inherent in caregiving work, leading to a loss of compassion in clinical practice that may result in negative outcomes for mental healthcare consumers. Compassion fatigue has clear emotional and physical costs and significant impacts on staff recruitment and retention. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: This review is the first to evaluate the quantitative literature on compassion fatigue in mental health nurses. Research on compassion fatigue in mental health nurses does not accurately account for the unique care relationship between nurse and consumer. Competency-based education, strong mental health nurse leadership, positive organizational cultures, clinical supervision and reflection alongside individual self-care strategies may mitigate compassion fatigue. WHAT ARE THE IMPLICATIONS FOR FUTURE PRACTICE?: Resources are urgently needed for education and workforce development that addresses compassion fatigue in mental health nurses. Interventions addressing the physical, cognitive and emotional demands of care work are needed to ensure mental health nurses have the capability to provide sustainable compassionate care to consumers. ABSTRACT: Introduction Although compassionate care is an essential component of mental health nursing, understandings of the impact of compassion fatigue is poorly understood. Aims/Questions To examine and synthesize available data on the prevalence of compassion fatigue within mental health nurses and consider what variables impact compassion fatigue. Method A search of MEDLINE, EMBASE, PsychINFO, Emcare, Web of Science, Scopus, CINAHL and grey literature for articles published between 1992 and February 2021 was conducted. Data were extracted from articles meeting inclusion criteria and integrated using narrative synthesis. Results Twelve articles were included. Prevalence of compassion fatigue ranged from low to high. Variables were identified that may mitigate the risk of compassion fatigue. Strong leadership and positive workplace cultures, clinical supervision, reflection, self-care and personal well-being may protect mental health nurses against compassion fatigue. Discussion Future research is needed on mental health nurses lived experience of compassion fatigue and their understandings of compassion. Implications for Practice Interventions should focus on increasing awareness of compassion fatigue and building individual and organizational resilience. Both organizations and individuals should be aware of the role they play in maintaining the capacity and capability for mental health nurses to provide sustainable and compassionate mental healthcare.study The patient experience of patient-centered communication with nurses in the hospital setting: a qualitative systematic review protocol.The objective of this systematic review is to synthesize the eligible evidence of patients' experience of engaging and interacting with nurses, in the medical-surgical ward setting.This review will consider the following questions: Communication is a way in which humans make sense of the world around them. Communication takes place as an interactive two-way process or interaction, involving two or more people and can occur by nonverbal, verbal, face-to-face or non-face-to-face methods. Effective communication is described to occur when the sender of a message sends their message in a way that conveys the intent of their message and then is understood by the receiver of the message. As a result of the communication from both the sender and the receiver of the message a shared meaning is created between both parties.Communication can therefore be viewed as a reciprocal process. In the health care literature the terms communication and interaction are used interchangeably.Communication failures between clinicians are the most common primary cause of errors and adverse events in health care. Communication is a significant factor in patient satisfaction and complaints about care. Communication plays an integral role in service quality in all service professions including health care professions.Within healthcare, quality care has been defined by the Institute of Medicine as 'care that is safe, effective, timely, efficient, equitable and patient-centred'. Patient-centered care is defined as 'care that is respectful of and responsive to individual patient preferences, needs and values, and ensuring that patient's values guide all clinical decisions. Patient centered-care encompasses the 'individual experiences of a patient, the clinical service, the organizational and the regulatory levels of health care'. At the individual patient level, patient-centered care is care that is 'provided in a respectful manner, assures open and ongoing sharing of useful information in an ongoing manner and supports and encourages the participation of patients and their families'. Healthcare organizations that are patient-centered engage patients as partners and hold human interactions as a pillar of their service.The deepening evidence base for principles and practice of patient-centered care has resulted in increasing recognition of, and greater focus on, the engagement of patients, and the value and benefit of patient engagement. Contemporary healthcare policy across the globe increasingly supports the engagement of patients as partners in all aspects of their own health care and also in systemic quality improvement. In 2005, the World Health Organization's (WHO) World Alliance for Patient Safety established the Patients for Patient Safety program, to improve patient safety globally in collaboration with patient advocates across the world. As a global initiative, Patients for Patient Safety 'believes that safety will be improved if patients are placed at the center of care and included as full partners'.In 2011 the United States of America Department of Health and Human Services announced its commitment of one billion US dollars of federal funding under The Patient Protection and Affordable Care Act 2010 and launched the Partnership for Patients initiative. The Partnership for Patients public-private consortium, which focuses on patient safety improvements and draws membership from federal government agencies and over 8000 health care providing organizations and individuals, views patients 'as essential partners in improving safety and quality' and 'their participation as active members of their own healthcare team is an essential component of making healthcare safer and reducing readmission'.In Australia, as part of national health care reforms to improve access to care, the efficiency of care and public transparency of the performance and funding of health services, the Australian Health Ministers endorsed the 10 National Safety and Quality Health Service Standards (NSQHSS) in 2011 and the Australian Safety and Quality Goals for Health Care (The Goals) in 2012. The NSQHSS focus on partnerships with health consumers in their own care and treatment and also in health service planning, the design of care and service monitoring and evaluation. Standard 1 - Governance for Safety and Quality, and Standard 2 - Partnering with Consumers, are required to be integrated within all of the other eight Standards.With patient safety and quality being core to the delivery of care the Safety of Care, Appropriateness of Care and Partnering with Consumers goals have been identified as the three areas that will make up the goals over the next five years until 2017. The Australian Commission on Safety and Quality in Health Care, in providing further justification for the focus on these three areas, states:The third priority area of The Goals, Partnering with Consumers, reflects patient-centered care practice by ensuring 'that there are effective partnerships between consumers and healthcare providers and organizations at all levels of healthcare provision, planning and evaluation'. Specifically, 'Consumers and healthcare providers understand each other when communicating about care and treatment and health care organizations are health literate organizations''.As healthcare focuses on providing services that are patient-centered and methods to ensure this occurs, patients' voice and experience of health care provision is increasingly being sought from an organizational quality improvement perspective. Patients are being surveyed on their healthcare experience across interpersonal areas such as being provided the opportunity by their health professional to ask questions, the level of involvement in their own care and whether they were shown courtesy, treated with respect and listened to carefully by their health professional.Surveys of patients' satisfaction with their care are now being superseded by surveys of patient experiences of care. However, current methods used to collect and use information from patients about their care is often retrospective, provides inadequate real time data and is not effective in creating action to produce change at the individual patient level. Methods which focus on including the patient and their information in real-time are considered by many to be crucial to the advancement of improved health outcomes and the reduced costs that are required of health care to be sustainable. One such method is patient-centered communication.The nurse-patient interaction is a core component of nursing science and high quality nursing care. Fleisher et al. contend that 'the main intention of communication and interaction, in the health setting, is to influence the patient's health status or state of well-being'. As a profession, nursing predominately requires communicating with, and relating to, patients at the individual level. In the hospital setting nurses undertake many of their patient related duties in a face-to-face manner with the patient at the bedside and these moments can facilitate effective interaction to occur between the nurse and the patient, which is patient-centered. McCabe et al. state that patient-centered communication as "defined by Langewitz et al. as 'communication that invites and encourages the patient to participate and negotiate in decision-making regarding their own care'.''However, qualitative studies by McCabe and Wellard et al, highlighted that nurses interact with patients only when performing administrative or functional activities and nursing 'practice was predominately task-orientated'. The outcome of these studies are supported by Maurer et al. in their report on the tools and strategies available to support patient and family engagement in the hospital setting. Maurer et al. identified that current strategies 'are not attuned to patient and family member experiences of hospitalization' and that most tools and strategies were 'more reflective of health professional and hospital views and the organization of their work'. The report identified a gap in the initiation of engagement, which is not driven by the patients and families' needs and preferences as they occur but by the 'opportunities that the hospital makes available'.McCabe et al. also argue that nurses' attending behavior, that is their 'accessibility and readiness to listen to patients through the use of non-verbal communication' requires that they have the underpinning elements of 'genuineness, warmth and empathy' all of which are components of patient-centered communication. McCabe et al. observed that 'that nurses do not always communicate in a patient-centered way'.According to Fleischer et al. 'The listening behavior in the way of listening and asking actually is the beginning of the nurse-patient communication relationship' McCabe et al. state that the lack of recognition and support by healthcare organizations of the connection and subsequent importance of patient-centered communication in the provision of high quality care has promulgated a culture averse to patient centered communication and is a significant factor in reducing the value that nurses place on providing patient-centered communication to patients.It is apparent that tensions exist between service quality and patient-centered care principles and practice. The impact of this tension on care and the patient as an individual is reflected in the literature. McCabe et al. claim that the use of non-patient-centered types of communication can negatively affect a patient's sense of well-being and security. Horvey et al. detail patient and family member experiences of not being listened to by their health care providers and describe the resulting consequences to be as severe as the death of the patient during their hospital stay. (ABSTRACT TRUNCATED)study Implementation Intentions for Exercise and Physical Activity: Who Do They Work For? A Systematic Review.Welche sozial-kognitiven Variablen moderieren die Wirkung von Implementation Intentions auf körperliche Aktivität und Bewegung?study Social Norms Change and Tobacco Use: A Protocol for a Systematic Review and Meta-Analysis of Interventions.Tobacco use kills more than eight million individuals each year, and results in substantial economic and human capital loss across nations. While effective supply-side solutions to tobacco control exist, these approaches are less effective at promoting cessation among heavy smokers, and less feasible to implement in countries with weaker tobacco control policy environments. Thus, effective demand-side solutions are needed. Shifting social norms around tobacco use is one such promising approach. To this end, a systematic review and meta-analysis of social norms intervention studies to influence tobacco use will be conducted following PRISMA 2020 guidance. Tobacco intervention studies with at least two time points that explicitly mention social norms or social influence as part of an intervention or set of measured variables will be included. Literature sources will comprise PubMed, Scopus, PsycInfo, and the Cochrane Trial Registry, as well as several grey literature sources. Two reviewers will independently screen studies, and risk of bias will be assessed using the Cochrane Risk of Bias 2 and ROBINS-I tools. The primary outcomes will be change in tobacco use and change in social norms. A random-effects meta-analysis will be conducted for both outcomes. Sources of heterogeneity will be explored using meta-regression with key covariates. Non-reporting biases will be explored using funnel plots. PROSPERO: CRD42021251535.study Impact of soda tax on beverage price, sale, purchase, and consumption in the US: a systematic review and meta-analysis of natural experiments.Wie sollten zuckerhaltige Getränke besteuert werden, wenn der gesundheitliche Schaden primär durch Zucker und nicht durch Volumen entsteht?study The Council of Psychological Advisers.Findings in behavioral science, including psychology, have influenced policies and reforms in many nations. Choice architecture can affect outcomes even if material incentives are not involved. In some contexts, default rules, simplification, and social norms have had even larger effects than significant economic incentives. Psychological research is helping to inform initiatives in savings, finance, highway safety, consumer protection, energy, climate change, obesity, education, poverty, development, crime, corruption, health, and the environment. No nation has yet created a council of psychological advisers, but the role of behavioral research in policy domains is likely to grow in the coming years, especially in light of the mounting interest in promoting ease and simplification ("navigability"); in increasing effectiveness, economic growth, and competitiveness; and in providing low-cost, choice-preserving approaches.study Behavior Change Resources Used in Mobile App-Based Interventions Addressing Weight, Behavioral, and Metabolic Outcomes in Adults With Overweight and Obesity: SyOverweight and obesity have become a public health issue. Lifestyle modifications delivered through mobile devices, especially mobile phones, present an opportunity to support weight loss efforts. However, evidence regarding the effects of mobile apps on other outcomes, such as blood pressure and physical activity (PA), remains limited. Recent studies on this topic require a systematic review and updating, and the active elements that promote behavior change remain unclear. The meta-analysis aimed to explore the effects of mobile phone apps on weight-related outcomes (weight, BMI, waist circumference [WC], fat mass, fat mass percentage), behavioral outcomes (moderate-to-vigorous physical activity [MVPA], energy intake), and metabolic outcomes (systolic blood pressure [SBP], diastolic blood pressure [DBP], triglycerides, hemoglobin A1c [HbA1c]) among adults with overweight and obesity. Behavior change techniques (BCTs), the smallest replicable intervention elements, were also identified to clarify the components used in current studies, along with associated resources, including facilitating, boosting, and nudging. In addition, factors influencing the effectiveness of these interventions were explored. Six databases (PubMed, Embase, CENTRAL, Web of Science, PsycINFO, and CINAHL) were searched for relevant randomized controlled trials (RCTs) published in English from inception to May 20, 2024. Two independent authors conducted study selection, data extraction, and quality assessment. The effect size of interventions was calculated using the mean difference (MD), and a random-effects model was applied for data analysis. Subgroup and sensitivity analyses were conducted to explore potential influencing factors and identify possible sources of heterogeneity. A total of 29 studies were included. The results indicated that mobile phone app interventions significantly reduced weight (MD=-1.45 kg, 95% CI -2.01 to -0.89; P<.001), BMI (MD=-0.35 kg/m2, 95% CI -0.57 to -0.13; P=.002), WC (MD=-1.98 cm, 95% CI -3.42 to -0.55; P=.007), fat mass (MD=-1.32 kg, 95% CI -1.94 to -0.69; P<.001), DBP (MD=-1.76 mm Hg, 95% CI -3.47 to -0.04; P=.04), and HbA1c (MD=-0.13%, 95% CI -0.22 to -0.04; P=.005). However, nonsignificant effects were observed for other outcomes. The most frequently used BCTs included 2.3 "self-monitoring of behavior" (n=25), 4.1 "instruction on how to perform the behavior" (n=24), 2.2 "feedback on behavior" (n=20), 1.1 "goal setting (behavior)" (n=19), and 1.4 "action planning" (n=15). Fifty-nine percent of included studies used 3 resource types (ie, facilitating, boosting, and nudging). Subgroup analyses identified combined diet and PA interventions, medium-term intervention duration, and the use of ≥8 BCTs as potential reference interventions for improving outcomes. This meta-analysis demonstrates that mobile phone app interventions significantly reduce weight, BMI, WC, fat mass, DBP, and HbA1c in adults with overweight and obesity. However, future studies should explore ways to optimize app interventions by incorporating behavior change strategies and resources to further enhance their overall effectiveness.study A Model of Reference-Dependent Preferences*Wie lassen sich Referenzabhängigkeit, Verlustaversion und Referenzpunkte modellieren, um Kaufverhalten und Nachfrage unter Unsicherheit zu erklären?study Driving Brand Engagement Through Online Social Influencers: An Empirical Investigation of Sponsored Blogging CampaignsUnter welchen Bedingungen steigern gesponserte Influencer-/Blogbeiträge Engagement und Kaufabsicht?study Consumers and Artificial Intelligence: An Experiential PerspectiveWie erleben Konsument:innen KI über Datenerfassung, Klassifikation, Delegation und soziale Interaktion?study How Insurance Prices Affect Consumers’ Purchase Decisions: Insurance Price as a Risk SignalNutzen Konsumenten optionale Versicherungspreise als Risikosignal für das Kernprodukt?study A systematic review and meta-analysis on the effectiveness of if-then plans - in a strict sense - to facilitate fruit and vegetable consumption in adults.A fruit-and-vegetable rich diet is important in the prevention of non-communicable diseases. If-then plans, or implementation intentions, are proposed to facilitate behavior change by formulating plans that link perceivable cues and goal-directed responses. We investigated the effectiveness of if-then planning interventions to facilitate fruit and vegetable intake in adults, with a strict focus on if-then planning procedures and excluded procedures representing conventional planning. A systematic review (MEDLINE, Embase, and PsycInfo; last searched April 3rd, 2025) and meta-analysis was conducted. Included studies were randomized controlled trials, testing the effect of if-then plans on fruit and/or vegetable intake against active control groups. Ten articles were identified as eligible, including 12 comparisons (N = 2399) with intervention-outcome periods of 1 week to 24 months. If-then planning participants reported consuming approximately a quarter of a portion of fruit and vegetable per day more than participants in the control groups (MD = 0.29, 95% CI: 0.11; 0.48). A central limitation of the analysis is that all included studies are based on self-reported fruit and vegetable consumption. While the effect size of the investigated intervention is small, its low resource requirements make it an accessible option for promoting fruit and vegetable consumption.study The impact of social norms interventions on clinical behaviour change among health workers: protocol for a systematic review and meta-analysis.Health workers routinely carry out clinical behaviours, such as prescribing, test-ordering or hand-washing, which impact on patient diagnoses, care, treatment and recovery. Social norms are the implicit or explicit rules that a group uses to determine values, beliefs, attitudes and behaviours. A social norms intervention seeks to change the clinical behaviour of a target health worker by exposing them to the values, beliefs, attitudes or behaviours of a reference group or person. This study aims to find out whether or not social norms interventions are effective ways of encouraging health workers to carry out desired behaviours and to identify which types of social norms intervention, if any, are most effective. A systematic review will be conducted. The inclusion criteria are a population of health professionals, a social norms intervention that seeks to change a clinical behaviour, and randomised controlled trials. Searches will be undertaken in MEDLINE, EMBASE, CINAHL, British Nursing Index, ISI Web of Science, PsycINFO and Cochrane trials. Titles and abstracts will be reviewed against the inclusion criteria to exclude any that are clearly ineligible. Two reviewers will independently screen all the remaining full texts to identify relevant papers. For studies which meet our inclusion criteria, two reviewers will extract data independently, code for behaviour change techniques and assess quality using the Cochrane risk of bias tool. The primary outcome measure will be compliance with desired behaviour. To assess the effect of social norms on the behaviour of health workers, we will perform fixed effects meta-analysis and present forest plots, stratified by behaviour change technique. We will explore sources of variation using meta-regression and may use multi-component-based network meta-analysis to explore which forms of social norms are more likely to be effective, if our data meet the necessary requirements. The study will provide evidence regarding the effectiveness of different methods of applying social norms to change the clinical behaviour of health professionals. We will disseminate the research to academics, health workers and members of the public and use the findings from the review to plan future research on the use of social norms with health workers. PROSPERO CRD42016045718. Future protocol changes will be clearly stated in PROSPERO.study Studie: Wann und warum tritt der Time-Space-Framing-Effekt in Reiseentscheidungen auf, und welcher kognitive Mechanismus erklärt frameabhängige Choice ReversalsWann und warum tritt der Time-Space-Framing-Effekt in Reiseentscheidungen auf, und welcher kognitive Mechanismus erklärt frameabhängige Choice Reversals?study Studie: Wie reagieren Konsumenten auf Green Marketing, welche Moderatoren und Boundary Conditions bestimmen Wirksamkeit, und welche Rolle spielen affektive MediWie reagieren Konsumenten auf Green Marketing, welche Moderatoren und Boundary Conditions bestimmen Wirksamkeit, und welche Rolle spielen affektive Mediatoren?study The Unconscious Consumer: Effects of Environment on Consumer BehaviorIn this article, we argue that consumer behavior is often strongly influenced by subtle environmental cues. Using grocery shopping as an example (or a “leitmotif,” if you wish), we first argue that the traditional perspective on consumer choice based on conscious information processing leaves much variance to be explained. Instead, we propose that many choices are made unconsciously and are strongly affected by the environment. Our argument is based on research on the perception–behavior link and on automatic goal pursuit.study Behavioural economic interventions to reduce health care appointment non-attendance: a systematic review and meta-analysis.Appointment non-attendance - often referred to as "missed appointments", "patient no-show", or "did not attend (DNA)" - causes volatility in health systems around the world. Of the different approaches that can be adopted to reduce patient non-attendance, behavioural economics-oriented mechanisms (i.e., psychological, cognitive, emotional, and social factors that may impact individual decisions) are reasoned to be better suited in such contexts - where the need is to persuade, nudge, and/ or incentivize patients to honour their scheduled appointment. The aim of this systematic literature review is to identify and summarize the published evidence on the use and effectiveness of behavioural economic interventions to reduce no-shows for health care appointments. We systematically searched four databases (PubMed/Medline, Embase, Scopus, and Web of Science) for published and grey literature on behavioural economic strategies to reduce no-shows for health care appointments. Eligible studies met four criteria for inclusion; they were (1) available in English, Spanish, or French, (2) assessed behavioural economics interventions, (3) objectively measured a behavioural outcome (as opposed to attitudes or preferences), and (4) used a randomized and controlled or quasi-experimental study design. Our initial search of the five databases identified 1,225 articles. After screening studies for inclusion criteria and assessing risk of bias, 61 studies were included in our final analysis. Data was extracted using a predefined 19-item extraction matrix. All studies assessed ambulatory or outpatient care services, although a variety of hospital departments or appointment types. The most common behaviour change intervention assessed was the use of reminders (n = 56). Results were mixed regarding the most effective methods of delivering reminders. There is significant evidence supporting the effectiveness of reminders (either by SMS, telephone, or mail) across various settings. However, there is a lack of evidence regarding alternative interventions and efforts to address other heuristics, leaving a majority of behavioural economic approaches unused and unassessed. The studies in our review reflect a lack of diversity in intervention approaches but point to the effectiveness of reminder systems in reducing no-show rates across a variety of medical departments. We recommend future studies to test alternative behavioural economic interventions that have not been used, tested, and/or published before.study Complementarity of Signals in Early-Stage Equity Investment Decisions: Evidence from a Randomized Field ExperimentThis study employs a randomized field experiment to causally identify what type of signal is likely to complement another signal in the context of financing technology ventures. The study examines the effect of product certification by expert intermediaries, prominent customers, and social proof (that is, others’ interest in investing in a venture) on interest in investing. These three signals are primarily signals of a venture’s product, market, and investment characteristics, respectively. The study finds that signals of product certification and prominent customers, and product certification and social proof are complements. In particular, investors who were able to view the combined product certification and prominent customer signals have a 72% higher likelihood of indicating an interest in making an equity investment than those who did not receive any of the three signals. Similarly, investors who were able to view the combined product certification and social proof signals have a 65% higher likelihood of indicating an interest in investing. These results suggest that in the context of technology ventures, a signal about product characteristics is the key to unlocking the value of signals of market or investment characteristics. This paper was accepted by Gustavo Manso, finance.study Studie: Wie wirken Retargeting-Strategien mit Gratisversand und Gratis-Rückgabe auf Kaufverhalten und Profitabilität bei Warenkorbabbrechern im Onlinehandel?Wie wirken Retargeting-Strategien mit Gratisversand und Gratis-Rückgabe auf Kaufverhalten und Profitabilität bei Warenkorbabbrechern im Onlinehandel?study The Effect of Electronic Word of Mouth on Sales: A Meta-Analytic Review of Platform, Product, and Metric FactorsWie stark beeinflusst eWOM den Absatz und welche Plattform-, Produkt- und Metrikfaktoren moderieren diesen Zusammenhang?study Online Retailer Survey 2021 : empirical findings on the e-commerce boom in Switzerland and AustriaWie haben sich Umsatz, Marketing, Organisation und Zahlungsarten im E-Commerce in der Schweiz und Österreich 2021 entwickelt?study Adolescent Peer Influence on Eating Behaviors via Social Media: Scoping ReviewWie beeinflusst Peer-Einfluss in sozialen Medien das Essverhalten von Jugendlichen?study Studie: Wie beeinflussen algorithmische Designhebel auf digitalen Plattformen Konsumentenverhalten, über welche Mechanismen, und welche Rollen spielen GovernancWie beeinflussen algorithmische Designhebel auf digitalen Plattformen Konsumentenverhalten, über welche Mechanismen, und welche Rollen spielen Governance und Kultur?study Trust, Satisfaction, and Online Repurchase Intention: The Moderating Role of Perceived Effectiveness of E-Commerce Institutional Mechanisms1Wie wirkt sich die wahrgenommene Wirksamkeit von E-Commerce-Institutionen auf die Beziehung zwischen Trust, Satisfaction und Online-Repurchase-Intention aus?study Studie: Wie beeinflussen Energie-Label-Attribute die Präferenzen und Zahlungsbereitschaft beim Kühlschrankkauf?Wie beeinflussen Energie-Label-Attribute die Präferenzen und Zahlungsbereitschaft beim Kühlschrankkauf?study An Analysis on the Impact of Choice Overload to Consumer Decision ParalysisFührt Choice Overload zu Decision Paralysis, und welche Faktoren treiben Choice Overload?study IMPULSIVENESS AND MARKETING STRATEGIES IN THE DIGITAL ERA: A SYSTEMATIC REVIEWWelche digitalen Kontexte, Mediatoren und Folgen prägen Online Impulse Buying?study Studie: Beeinflusst Advertisement Believability Green Purchase Intention direkt und über Environmental/Emotional Value, und moderiert Temporal Framing diese PfaBeeinflusst Advertisement Believability Green Purchase Intention direkt und über Environmental/Emotional Value, und moderiert Temporal Framing diese Pfade?study Studie: Welche Faktoren beeinflussen Kaufabsicht und Kaufverhalten für gesunde Produkte bei mexikanischen Konsumenten?Welche Faktoren beeinflussen Kaufabsicht und Kaufverhalten für gesunde Produkte bei mexikanischen Konsumenten?study Determinants of green consumption: a systematic literature review using the TCCM approachWelche Theorien, Kontexte, Merkmale und Methoden prägen Forschung zu Green Consumption bzw. grünem Kaufverhalten?study Efficiency of In-Store Interventions to Impact Customers to Purchase Healthier Food and Beverage Products in Real-Life Grocery Stores: A Systematic Review and MWelche In-Store-Interventionen in realen Lebensmittelgeschäften erhöhen den Kauf gesünderer Lebensmittel und Getränke am effektivsten?study Impact of color-coded and warning nutrition labelling schemes: A systematic review and network meta-analysis.Suboptimal diets are a leading risk factor for death and disability. Nutrition labelling is a potential method to encourage consumers to improve dietary behaviour. This systematic review and network meta-analysis (NMA) summarises evidence on the impact of colour-coded interpretive labels and warning labels on changing consumers' purchasing behaviour. We conducted a literature review of peer-reviewed articles published between 1 January 1990 and 24 May 2021 in PubMed, Embase via Ovid, Cochrane Central Register of Controlled Trials, and SCOPUS. Randomised controlled trials (RCTs) and quasi-experimental studies were included for the primary outcomes (measures of changes in consumers' purchasing and consuming behaviour). A frequentist NMA method was applied to pool the results. A total of 156 studies (including 101 RCTs and 55 non-RCTs) nested in 138 articles were incorporated into the systematic review, of which 134 studies in 120 articles were eligible for meta-analysis. We found that the traffic light labelling system (TLS), nutrient warning (NW), and health warning (HW) were associated with an increased probability of selecting more healthful products (odds ratios [ORs] and 95% confidence intervals [CIs]: TLS, 1.5 [1.2, 1.87]; NW, 3.61 [2.82, 4.63]; HW, 1.65 [1.32, 2.06]). Nutri-Score (NS) and warning labels appeared effective in reducing consumers' probability of selecting less healthful products (NS, 0.66 [0.53, 0.82]; NW,0.65 [0.54, 0.77]; HW,0.64 [0.53, 0.76]). NS and NW were associated with an increased overall healthfulness (healthfulness ratings of products purchased using models such as FSAm-NPS/HCSP) by 7.9% and 26%, respectively. TLS, NS, and NW were associated with a reduced energy (total energy: TLS, -6.5%; NS, -6%; NW, -12.9%; energy per 100 g/ml: TLS, -3%; NS, -3.5%; NW, -3.8%), sodium (total sodium/salt: TLS, -6.4%; sodium/salt per 100 g/ml: NS: -7.8%), fat (total fat: NS, -15.7%; fat per 100 g/ml: TLS: -2.6%; NS: -3.2%), and total saturated fat (TLS, -12.9%; NS: -17.1%; NW: -16.3%) content of purchases. The impact of TLS, NS, and NW on purchasing behaviour could be explained by improved understanding of the nutrition information, which further elicits negative perception towards unhealthful products or positive attitudes towards healthful foods. Comparisons across label types suggested that colour-coded labels performed better in nudging consumers towards the purchase of more healthful products (NS versus NW: 1.51 [1.08, 2.11]), while warning labels have the advantage in discouraging unhealthful purchasing behaviour (NW versus TLS: 0.81 [0.67, 0.98]; HW versus TLS: 0.8 [0.63, 1]). Study limitations included high heterogeneity and inconsistency in the comparisons across different label types, limited number of real-world studies (95% were laboratory studies), and lack of long-term impact assessments. Our systematic review provided comprehensive evidence for the impact of colour-coded labels and warnings in nudging consumers' purchasing behaviour towards more healthful products and the underlying psychological mechanism of behavioural change. Each type of label had different attributes, which should be taken into consideration when making front-of-package nutrition labelling (FOPL) policies according to local contexts. Our study supported mandatory front-of-pack labelling policies in directing consumers' choice and encouraging the food industry to reformulate their products. 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