Search Results (485)

Over-the-Air updates have emerged as a critical competitive frontier in the Software-Defined Vehicle era. While offering value creation opportunities, automakers face strategic uncertainty regarding pricing models (e.g., subscription vs. one-time purchase). To clarify these dynamics, this study develops an evolutionary game model of duopolistic pricing competition. Unlike traditional studies with exogenous payoff assumptions, we innovatively employ the Hotelling model to endogenously derive firm profit functions based on consumer utility maximization. The highlights of this study include: (1) We establish an integrated “static–dynamic” framework connecting micro-level consumer choice with macro-level strategy evolution; (2) We identify that product differentiation is the decisive variable governing market stability; (3) We demonstrate that under moderate differentiation, the market exhibits a robust self-correcting tendency towards “Tacit Collusion” (mutual high pricing). However, simulation results also warn that an asymmetric disruptive strategy by a market leader can override this robustness, forcing the market into a low-profit equilibrium. These findings provide theoretical guidance for automakers to optimize pricing strategies and avoid value-destroying price wars. Full article

Household food waste remains a significant barrier to sustainable consumption goals. This study investigates the impact of sociodemographic characteristics influence self-reported food waste levels in Poland. A cross-sectional CAWI survey (N = 1000), based on the HFSSM, was conducted among adults responsible for purchasing household food. Associations between food waste and structural factors were analysed using χ² tests, Spearman rank correlations, and Mann–Whitney U tests. Age appears as the strongest determinant: younger respondents consistently report higher food waste, while older adults indicate markedly lower levels. Household composition is equally important—the presence and number of children significantly increase waste. Economic status is also relevant: pensioners and disability-benefit recipients report substantially less waste than employed and self-employed individuals. Net household income shows no significant effect. Education does not necessarily reduce food waste; in some comparisons, higher-educated respondents report slightly higher levels, suggesting that formal education does not automatically translate into effective food management routines. The findings highlight that food waste is primarily influenced by life stage, household structure, and daily habits rather than income or education. Interventions should focus on younger adults and families with children, emphasising practical skills such as meal planning, inventory management, appropriate storage, and the use of leftovers. Full article

Background and Objectives: The COVID-19 pandemic had a significant impact on physical activity among various populations. Due to a lack of country-representative studies on the prevailing trends in leisure-time physical activity since the COVID-19 pandemic, the aim of this study was to assess the temporal, social, and demographic inequalities in the prevalence of engagement in exercise and sports among working-age citizens of Lithuania from 2021 to 2024. Materials and Methods: This study included four samples of working-age citizens (1600 per year, 6400 in total). Four surveys were conducted, and the distribution of respondents among the groups was compared. Results: In general, the prevalence of engagement in exercise and sports did not change over a four-year period (48.8%, p = 0.256). The prevalence of regular exercise and sports increased, while engagement in irregular exercise and sports decreased (p = 0.014). Binary logistic regression analysis showed that younger age, male sex, being single, having no children under 18 years of age, selecting foods for health strengthening, positive self-assessment of nutrition and health status, use of dietary supplements, attention to purchasing healthy products, and university education attainment were associated with engagement in exercise and sports (regular or irregular) (p < 0.05). Analysis focused specifically on regular exercise and sports revealed associations with a longer time since the onset of the COVID-19 pandemic, younger age, urban residence, selection of foods for health strengthening, positive assessment of nutrition and health status, and university education attainment (p < 0.05), while no significant associations were observed with sex, marital status, presence of children under 18 years of age, use of dietary supplements, or attention to purchasing healthy products (p > 0.05). Conclusions: The overall prevalence of physical activity engagement among working-aged Lithuanian citizens did not change from 2021 to 2024, engagement in regular and irregular exercise and sports has changed. Engagement in regular and irregular exercise and sports is associated with different social profiles. Full article

This study examines the socio-economic and behavioral factors influencing sustainable consumption through secondhand clothing purchases among young consumers in Hanoi, Vietnam. By addressing the changing consumption patterns, this research contributes to understanding how youth behavior supports the transition toward sustainability in emerging urban markets. This research integrates the Theory of Planned Behavior (TPB) with additional constructs such as perceived economic benefits, environmental concern, perceived risk, shopping experience, and gender differences to provide an integrated socio-economic framework. Data were collected through a structured questionnaire administered to university students and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). Results indicate that perceived economic benefits and subjective norms are the strongest predictors of purchase intention across both general and luxury secondhand fashion segments, emphasizing affordability and social acceptance. Environmental concern and attitude also positively influence general secondhand purchase intentions, while perceived behavioral control notably impacts luxury secondhand purchases. Contrary to prior studies, perceived risk was found to be insignificant, and male consumers exhibited a higher engagement rate than females in this context. These findings underscore the complex interplay of economic, social, and environmental dimensions shaping sustainable fashion consumption among youth. This study suggests targeted marketing and policy strategies to promote sustainable consumption and supports the expansion of circular economy practices in emerging urban markets. Limitations related to sample scope and self-reported data warrant further research to generalize the findings and explore additional moderating variables. Full article

With the increasing penetration of distributed energy resources (DERs) and the rapid development of active distribution networks, the traditional centrally controlled operation mode can no longer meet the flexibility and autonomy requirements under the multi-dimensional coupling of sources, networks, loads, and storage. To achieve regional energy self-balancing and autonomous operation, this paper proposes a partitioned configuration method for energy storage systems (ESSs) in energy-autonomous distribution networks based on autonomous unit division. First, the concept and hierarchical structure of the energy-autonomous distribution network and its autonomous units are clarified, identifying autonomous units as the fundamental carriers of the network’s autonomy. Then, following the principle of “tight coupling within units and loose coupling between units,” a comprehensive indicator system for autonomous unit division is constructed from three aspects: electrical modularity, active power balance, and reactive power balance. An improved genetic algorithm is applied to optimize the division results. Furthermore, based on the obtained division, an ESS partitioned configuration model is developed with the objective of minimizing the total cost, considering the investment and operation costs of ESSs, power purchase cost from the main grid, PV curtailment losses, and network loss cost. The model is solved using the CPLEX solver. Finally, a case study on a typical multi-substation, multi-feeder distribution network verifies the effectiveness of the proposed approach. The results demonstrate that the proposed model effectively improves voltage quality while reducing the total cost by 20.89%, ensuring optimal economic performance of storage configuration and enhancing the autonomy of EADNs. Full article

Increasing consumption of plant-based alternatives is promoted to reduce the environmental impact of food systems, yet adoption remains limited. The aim of this study was to identify distinct consumer segments and examine differences in their perceptions, consumption habits, and trial intentions concerning plant-based dairy alternatives (PBDAs). Conceptually, it advances PBDAs segmentation by jointly incorporating pro-dairy justifications, avoidance of animal-origin considerations, and self-reported PBDAs familiarity, capturing psychological defence mechanisms alongside knowledge-related influences on adoption. Data were collected in a nationwide cross-sectional CAWI survey of 1220 Polish adults responsible for household food purchasing, stratified and quota-matched by gender, age, region, and settlement size. Factor analysis of the segmenting variables was conducted using principal component analysis with varimax rotation, followed by two-step cluster analysis. Alternative cluster solutions were compared using the Bayesian Information Criterion based on the log-likelihood (BIC-LL). The selected five-cluster solution showed acceptable to good clustering quality, as indicated by silhouette-based measures of cohesion and separation. Given the cross-sectional CAWI design and reliance on self-reported measures, the findings do not allow causal inference and should be interpreted as context-specific to the Polish, dairy-centric food culture. Cluster analysis identified five segments that differed in PBDA-related beliefs, product image evaluations, consumption patterns, and trial intentions. PBDA-oriented segments, comprising a dairy-critical segment and a dual-consumption segment, exhibited higher perceived familiarity and stronger ethical and environmental concerns and showed greater PBDA use and willingness to try new products. The dual-consumption segment reported the highest use and trial readiness. In contrast, resistant segments showed stronger dairy attachment, lower perceived familiarity, and more sceptical evaluations of PBDAs’ healthfulness, naturalness, and sensory appeal, and rarely consumed plant-based alternatives. The findings highlight substantial heterogeneity in how Polish dairy consumers perceive PBDAs, emphasising the importance of segment-specific approaches for communication and product development. Tailored strategies can help address the diverse motivations and barriers of consumers, supporting a dietary shift toward more plant-based options. Full article

The changes introduced under the European Green Deal policy affect many areas of life. They also have significant consequences for the functioning of small and medium-sized enterprises. The authors put forward the thesis that one of the key categories of costs in the case of such firms, which significantly influences their decision to commence, continue or cease operations, is the cost of purchasing electricity and gas. Analysing data from the Central Statistical Office in Poland for the years 2015–2025 and constructing an econometric model on this basis, the authors found arguments that the cost of purchasing electricity (as opposed to the cost of purchasing gas) may probably indeed play the role attributed to it. However, the detected relationships are of a very complex nature and only the ML model, Random Forest, was able to identify them (linear and non-linear OLS regression models were not appropriate here). Although Random Forest is a predictive method and does not identify structural causality, the findings may be important for decision-makers assessing the scale of the challenges that small and medium-sized enterprises will have to face in the coming years. Moreover, the findings constitute a significant argument in favour of support instruments (e.g., contracts for difference, long-term PPAs for SMEs, support for energy efficiency and self-generation) for the aforementioned category of entities. Full article

Background: Antimicrobial resistance (AMR) is now a critical issue in South Africa, enhanced by considerable inappropriate prescribing of antibiotics. There is currently variable dispensing of antibiotics without a prescription. Where this occurs, it is principally for urinary tract infections (UTIs) and sexually transmitted infections (STIs). Consequently, there is a need to comprehensively evaluate antibiotic dispensing patterns and factors influencing this to reduce AMR. Methods: A previously piloted questionnaire was administered to patients exiting three different categories of community pharmacies in a rural province. The questionnaire included data on the prevalence of antibiotics dispensed, whether without a prescription, and the rationale for this. Results: A total of 465 patients leaving community pharmacies with a medicine were interviewed. 54.4% of interviewed patients were dispensed at least one antibiotic, with 78.7% dispensed these without a prescription from either independent or franchise pharmacies. Metronidazole (36.1%) and azithromycin (32.7%) were the most dispensed antibiotics. STIs were the most common infectious disease for which an antibiotic was dispensed (60.1%), with 99.6% dispensed without a prescription. Upper respiratory tract infections (URTIs) were the most common infection where antibiotics were dispensed with a prescription (60.0%), with little dispensing without a prescription (7.1%). The most frequently cited reasons for obtaining antibiotics without a prescription were prior use (56.8%), long waiting times at PHC clinics (15.6%), and financial constraints (6.0%). Conclusions: There is an urgent need to review community pharmacists’ scope of practice, including allowing them to prescribe antibiotics for infectious diseases such as UTIs, similar to other countries. Concomitantly, utilise trained community pharmacists to engage with prescribers to improve future antibiotic use, especially for URTIs. Full article

Global crises, from pandemics to geopolitical instability, intensify societal anxiety. Paradoxically, these periods of collective threat often witness surges in luxury consumption. Drawing on Terror Management Theory (TMT), we propose this behavior is a psychological response to the deindividuating nature of such threats. We argue that a collective crisis increases intentions to purchase luxury goods via an intensified need for uniqueness, which functions as a self-affirming mechanism against a threatened sense of personal identity. We test this model using the COVID-19 pandemic as a salient operationalization of a collective threat. We further propose that this effect is counterintuitively moderated by independent self-construal. Findings from an experimental study (N = 276) show that perceived crisis risk increases luxury purchase intention, and this effect is serially mediated by the need for uniqueness. Critically, this indirect effect is strongest for individuals low in independent self-construal, who are prompted to engage in compensatory uniqueness-seeking when their primary buffer of social connection is disrupted. Our findings contribute to consumer behavior research by identifying a novel psychological pathway linking collective threats to consumption and offer insights for brands navigating consumer behavior during periods of widespread uncertainty. Full article

Short-video platforms such as TikTok, Douyin, and Instagram Reels have transformed digital consumption into an immersive, algorithmically mediated commerce ecosystem. This study examines how compulsive short video use (CSV), a maladaptive pattern linked to diminished self-regulation, shapes purchase intention (PI). Drawing on compulsive consumption theory, dual-process perspectives, and socio-technical systems theory (STST), we estimate a structural equation model using survey data from 542 active short-video users. The results show that CSV exerts a strong and consistent positive effect on PI, indicating that compulsive engagement functions as a commercially consequential psychological state. This relationship is contingent on socio-technical conditions: technical support and platform familiarity substantially amplify the CSV–PI pathway, social belonging provides weaker but positive reinforcement, and social interaction attenuates the effect by redirecting attention away from transactional cues. These findings position CSV as both a form of digital pathology and a commercially activating mechanism within socio-technical environments. The study also offers guidance for platform managers seeking to balance monetization with ethical responsibility in short-video commerce ecosystems. Full article

Faced with the transformation of food and the rapid pace of life among university students, consumption behaviors for food products such as Andean grains have become significant topics. To better understand this issue, this study aimed to analyze the factors that influence the purchase intention of Andean grains in university students, based on the theory of planned behavior, self-identity, moral obligation, and willingness to pay more. The study recruited 900 university students, and the results report that moral obligation is the strongest predictor (β = 0.295), followed by self-identity (β = 0.293). These findings confirm the need to explore new opportunities for transforming and innovating Andean grains. Full article

The persistent gap between consumers’ pro-environmental attitudes and their sustainable behavior continues to challenge both scholars and practitioners. While social norms are often viewed as a lever for encouraging sustainable behavior, empirical results remain inconsistent. This paper develops a conceptual model of sustainable behavior that integrates insights from prior research on social norms, culture, and self-construal. Specifically, the paper links social norms, self-construal, macro-culture, and environmental awareness to explain their combined influence on sustainable behavior. Drawing from social norms theory, self-construal theory, cross-cultural psychology, and environmental psychology, the model proposes that appeals combining specific types of norms (injunctive vs. descriptive) with targeted self-construal activation (independent vs. interdependent) can strengthen purchase intentions, moderated by cultural context and environmental awareness. Eight testable propositions that distinguish established effects from novel extensions are advanced, thereby clarifying boundary conditions and guiding future empirical testing. By synthesizing insights from fragmented literature, the framework positions social norms as the central explanatory construct and provides practical guidance for designing culturally attuned, norm-based sustainability communications. Full article

Advertising images constitute an important factor influencing consumer purchase intentions in commercial settings. Drawing on the perspective of self-conscious emotions, this study examines the impact of advertising image types for fresh agricultural products on consumer purchase intentions and explores the underlying mechanisms. Advertising images are classified into three categories: meat-typical, animal-typical, and composite. Evidence from two randomized experiments reveals the following findings: (a) The effectiveness of the three advertising image types in promoting purchase intentions follows the order of meat-typical > animal-typical > composite; (b) guilt mediates the relationship between advertising image types and purchase intentions, such that composite images evoke greater guilt than meat-typical and animal-typical images, thereby reducing consumer willingness to purchase; and (c) self-construal partially moderates the mediating effect of guilt, in that interdependent self-construal consumers exposed to composite advertising images are more likely to experience heightened guilt and consequently exhibit lower purchase intentions. This study extends the application of animal-related classifications in advertising and marketing research and provides new empirical evidence and practical insights for the design of advertising strategies for fresh agricultural products. Full article

Despite heightened sustainability agendas, green purchase behavior (GPB) remains uneven. This study develops a motive–mechanism account that distinguishes personal (self-regarding) and civic (other-regarding) motivation and specifies how these parallel motives operate through a dual-barrier/relational-enabler layer. Using survey data from urban consumers in China (n = 420) and structural equation modeling with bias-corrected bootstrapped indirect effects, we test a dual-path mediation model in which perceived cost and perceived risk function as inhibitory mechanisms, while social capital operates as a relational amplifier. Results indicate that both motivations positively predict GPB; cost and risk suppress GPB; and social capital facilitates GPB. Indirect effects via all three mediators are significant, yet direct paths from both motivations to GPB remain, indicating partial mediation. Two regularities are noteworthy: a pattern of motivational symmetry, whereby personal and civic motives exhibit comparable direct associations with behavior, and an attenuated risk pathway relative to cost, suggesting affordability—more than uncertainty—constrains adoption in the observed market context. Theoretically, the findings integrate TPB–VBN insights into a dual-motive, dual-barrier, relational-enabler framework that positions social capital as a conversion-efficiency multiplier and clarifies scope conditions under which each pathway dominates. Practically, the results prioritize interventions that lower out-of-pocket costs, reduce the salience of uncertainty, and leverage community trust and peer visibility. Full article

Perceived value is a key factor shaping consumer purchase decisions. In the field of functional snack consumption, generational differences in value perception dimensions significantly influence decision-making processes, creating both challenges and opportunities for targeted marketing. Drawing on perceived value theory, this study develops a model examining the impact of perceived value on consumption intention for functional snacks. A questionnaire survey was conducted among Chinese Generation Y and Generation Z consumers, and the data were analyzed using PLS-SEM and fuzzy-set Qualitative Comparative Analysis (fsQCA). The results indicate that self-oriented values (functional and hedonic) exert a significant positive effect on other-oriented values (symbolic and social), and both categories of values positively affect consumption intention. Regarding generational moderation, the effects of functional and hedonic values on purchase intention do not differ significantly across generations; however, symbolic value has a stronger influence on Generation Z, while social value plays a more prominent role for Generation Y. Importance–Performance Map Analysis (IPMA) results further reveal differences in the relative importance and performance of value perception between the two groups. Configuration analysis shows that compared with Generation Y, Generation Z exhibits a higher threshold for strong consumption intention, a lower threshold for weak consumption intention, and greater sensitivity to value deficiency. These findings provide practical insights for functional snack companies to address generational differences and optimize marketing strategies. Full article