Search Results (23)

Education plays an essential role in ensuring the social sustainability of blood donation. As altruism may be insufficient to support donor engagement, this study assesses the effectiveness of incentives on ensuring the social sustainability of blood donation. A self-administered questionnaire was used to collect data from 319 medical students about socio-demographic variables, donation frequency, altruism dimensions (impure, self-regarding, reluctant, egalitarian warm glow, and kinship), the perceived importance of monetary (travel compensation, meal vouchers) and non-monetary incentives (free blood screening, paid leave, refreshments, recognition gifts), and willingness to donate during a blood donation social marketing campaign in November 2021 and November 2022. Data were analyzed in SPSS 20 using chi-square, ANOVA tests, and multiple regression models. The key findings indicate no significant associations between donor categories and incentives, but meal vouchers, free medical testing, refreshments, and recognition gifts were linked to self-regarding altruism. Additionally, neither incentives, altruism dimensions, nor their interaction predicted willingness to donate blood. These findings highlight the need for education-driven approaches to ensure a long-term commitment of blood donors, by integrating educational, sustainable curricular or extracurricular activities. Integrating blood donation awareness into formal education may cultivate a culture of civic responsibility, expanding the donor pool and strengthening the social sustainability of blood donation. Full article

The ever-worsening climate crisis necessitates a shift toward sustainable energy systems that prioritise citizen participation. Renewable Energy Communities (RECs) present a unique opportunity to enhance local resilience, reduce greenhouse gas emissions, and foster climate mitigation and adaptation through participatory governance. This exploratory study investigates the psychosocial predictors of social acceptance for RECs, with a focus on Socio-political Control and Warm-glow Motivation as key determinants. To this end, we collected 107 questionnaires completed by residents of the metropolitan city of Padua, which is engaged in the EU’s 100 Climate-Neutral Cities by 2030 mission. The results indicate a generally favourable attitude toward RECs and reveal that Socio-political Control, defined as the perceived ability to influence societal and political systems, positively predicts community energy acceptance. Furthermore, Impure Altruism (Warm-glow Motivation) mediates this relationship, underscoring the importance of intrinsic emotional rewards in fostering support for sustainable energy projects. These findings highlight the interplay between individual agency and emotional satisfaction in promoting energy transitions. This study underscores the need for participatory governance and tailored communication strategies to enhance public engagement with RECs. Limitations and avenues for future research are discussed, emphasising the need for broader cross-cultural investigations and experimental designs. Full article

This work presents advancements in a rotating glow-to-arc plasma reactor, designed for stable gas conversion of robust molecules like CO₂, N₂, and CH₄. Plasma-based systems play a critical role in Power-to-X research, offering electrified, sustainable pathways for industrial gas conversion. Here, we scaled the reactor’s power from 200 W to 1.2 kW in a CO₂ plasma, which introduced instability due to uplift forces and arc behavior. These were mitigated by integrating silicon carbide (SiC) ceramic foam as a mechanical restriction, significantly enhancing stability by reducing arc movement, confining convection, and balancing volumetric flow within the arc. Using high-speed camera analysis and in situ electronic frequency measurements, we identified dominant frequencies tied to operational parameters, supporting potential in operando monitoring and control. Arc-rotation frequencies from 5 to 50 Hz and higher frequencies (500 to 2700 Hz) related to arc chattering reveal the system’s dynamic response to power and flow changes. Furthermore, refining the specific energy input ($SEI$) to account for plasma residence time allowed for a more precise calculation of effective $SEI$, optimizing energy delivery to target molecules. Our findings underscore the reactor’s promise for scalable, efficient gas conversion in sustainable energy applications. Full article

With the continuous improvement in people’s living standards and the change in consumption concept, green food is favored by more and more consumers. Consumer repurchase behavior is a necessary condition to activate the market, expand the consumption scale and stabilize the continuous growth of the market. Repurchase intention is the most direct factor affecting consumers’ green food repurchase intention. Therefore, it is necessary to study consumers green food repurchase intentions. This study collects data from 303 consumer surveys on green food consumption to explore the impact of consumer satisfaction with consumption experience on green food repurchase intention and further explore the mechanisms and influence boundaries. The results show that (1) consumer experience satisfaction positively affects green food repurchase intention; (2) consumer experience satisfaction can improve consumers’ green food repurchase intention through consumer perceptions of social value, green self-efficacy and warm glow; (3) the higher the degree of consumer inertia, the stronger the influence of green self-efficacy and warm glow on consumers’ green food repurchase intention; and (4) the higher the degree of consumer subjective norms, the stronger the influence of consumer perceived social value, green self-efficacy and warm glow on the consumer’s green food repurchase intention. This study provides a new perspective and theoretical framework for promoting consumers’ green food repurchase intention, and it may have certain theoretical significance and practical impact on green food market growth, sustainable carrying of the ecological environment and high-quality development of agriculture. Full article

This study was designed in order to understand the psychological benefits of an indoor smart farm restaurant, which is a restaurant that operates a smart farm inside the restaurant. The study more specifically proposes a conceptual framework that includes psychological benefits, attitudes, and future engagement. In addition, this study investigated whether the impact of psychological benefits on attitude is moderated by curiosity. The data was collected from 317 participants in South Korea. The results revealed that warm glow, nature experiences, and self-expressive benefits positively influenced attitude. Also, attitude, warm glow, and self-expressive benefits significantly affected future engagement. Lastly, the effect of psychological benefits on attitudes is moderated by curiosity. Full article

As climate change continues, environmental sustainability has become a popular topic among brands and consumer groups. The fashion industry has detrimental impacts on the natural environment; however, little is known about how brand benefits can help sustainable fashion brands develop relationships with consumers and promote consumer behavior. This study focuses on Instagram to investigate how consumers’ perceived brand benefits predict relationship commitment, electronic word-of-mouth (eWOM), and purchase intention. Prior studies have overlooked the possible effects of various benefits. This study outlines five benefits of sustainable fashion brands: inner self-expression, social self-expression, warm glow, green, and economic benefits. Results from a survey of sustainable fashion brand followers on Instagram showed that eWOM positively related with economic benefits and negatively with warm glow and green benefits. Findings further indicated a mediating effect of relationship commitment between benefits and consumers’ behavior. Lastly, the level of environmental attitude influenced the mediating impact of relationship commitment. The implications of these findings are discussed, and suggestions for future research are provided. Full article

The article discusses the use of a catalyst inside the cylinder, the task of which is to reduce exhaust emissions from a diesel engine. The catalyst (platinum) applied to the glow plugs provided an additional method of exhaust aftertreatment. Due to their usage, especially in urban driving, passenger cars are characterized by small mileage between individual trips, so they often operate from a cold engine start and work at a low engine temperature, which leads to reduced catalytic reactor efficiency. For this reason, the efficiency of the internal catalyst was tested in relation to the efficiency of the external reactor. This efficiency was determined based on exhaust emission measurements (before and after the catalytic reactor) in two stages: stage 1: idling of a hot engine, and stage 2: simulation of the NEDC test (valid for the selected test object). The tests were carried out on an engine dynamometer, where the traffic conditions from the type-approval test carried out on a chassis dynamometer could be replicated. The tests were carried out on a Euro 4 1.3 JTD MultiJet diesel engine. The results (measurement of carbon monoxide, hydrocarbons, and the number of particles) related to the assessment of the effect the catalyst in the cylinder were discussed. The obtained catalytic reactor efficiency results, regardless of the type of research, indicated that it achieved the highest efficiency in reducing the concentration of hydrocarbons, and the lowest—in relation to the number of solid particles (as that is not its primary function). It is particularly significant that the in-cylinder catalytic converter was most efficient during the cold engine start, which happens frequently in urban driving. The efficiency of the diesel oxidation catalytic reactor (DOC) during the engine start-up and warm-up phases with the use of standard glow plugs reached values of 31.3%, 34.1% and 14.3%, respectively, for carbon monoxide, hydrocarbons and the particle number. On the other hand, the determined efficiency of the DOC in a setup with the modified glow plugs was 28.9%, 35.7% and 12.5%, respectively. The proposed solution can be used to improve the combustion quality in internal combustion engines used in hybrid vehicles, which are characterized by frequent engine starts and stops. In addition, it is possible to use such a solution retroactively in traditional vehicles powered by an internal combustion engine, which could result in an improvement in their emission class through what is called retrofitting. Full article

With the rapidly development of electricity technology and renewable energy, adopting electric vehicles (EVs) not only can efficiently collaborate with renewable energy, but also can help decrease the negative environmental effects of traditional vehicles. However, even though electric vehicles offer many advantages, most consumers still hesitate to buy or even rent them. While there is a large growing body of studies focusing on topics related to electric public transportation and electric cars, there is still a shortage of them examining electric scooters (ESs). Based on the norm activation model (NAM), green consumption effect, and extrinsic motivation, this study aims to present the crucial antecedence of consumers’ intention to adopt ESs. As a main transportation for most of the people in Taiwan, this research adopts design of experiments and develops two studies to collect data from Taiwan. The results show that warm glow mediates the positive relationship between awareness of consequences and intention to adopt them. Moreover, the interacting effect of awareness of consequences and extrinsic appeal on intention to adopt ESs is mediated by the warm glow. For academia, the results herein fill the gap related to electric transportation. In real-world practice, this study provides valuable suggestions for governments that want to abate any negative impact from traditional scooters. Full article

Although the literature shows that consuming pro-social products increases warm glow, a psychological factor that contributes to consumer experience and satisfaction, it is unclear whether participating in a charity sporting event results in the same outcome. This research addresses this gap by testing the effects of participating in charity running events and altruism on the warm glow of participants. A scenario-based survey was employed to collect data from 180 respondents who had previously participated in charity running events. Multiple regression analysis results showed that participating in a charity (vs. non-charity) running event increased participants’ warm glow. Altruism also had a significant positive impact on their warm glow; however, this effect was independent of the percentage of proceeds donated by the event to charity. Full article

In this paper, we extend the third evolution of the Technology Acceptance Model (TAM3) to incorporate warm-glow with the aim of understanding the role this phenomenon plays on user adoption decisions. Warm-glow is the feeling of satisfaction or pleasure (or both) that is experienced by individuals after they do something “good” for their fellow human. Two constructs—perceived extrinsic warm-glow (PEWG) and perceived intrinsic warm-glow (PIWG)—were incorporated into the TAM3 model to measure the two dimensions of user-experienced warm-glow, forming what we refer to as the TAM3 + WG model. An experimental approach was taken to evaluate the suitability of the proposed model (i.e., TAM3 + WG). A vignette was created to present users with a hypothetical technology designed to evoke warm-glow in participants. Our TAM3 + WG model was found to be superior in terms of fit to the TAM3 model. Furthermore, the PEWG and PIWG constructs were confirmed to be unique within the original TAM3 model. The findings indicate that the factors that have the greatest influence on consumer decisions are (in decreasing order) perceived usefulness (PU), PIWG, subjective norm (SN), and PEWG. Additionally, a higher PEWG resulted in the technology being perceived as more useful. In other words, both extrinsic and intrinsic warm-glow play a prominent role in user decisions as to whether or not to adopt a particular technology. Full article

Compared to other generations, Generation Z (Gen Z) tend to be more concerned with environmental problems, prefer healthier food options, and are willing to pay premium prices for eco-friendly food products. Until now, however, this market segment had not been the focus of any sustainability research in the restaurant context. The present study fills this gap while exploring if green self-identity (one’s alignment with environmental concerns) influences perceptions of green restaurants (one’s perceived image of green restaurants) and warm glow feeling (one’s good feeling from patronizing green restaurants), which in turn affect willingness to pay. Data was collected from 388 Gen Z participants through a questionnaire survey, and covariance-based structural equation modeling (CB-SEM) was used to examine the study’s model. The results indicate warm glow is generated when individuals with green self-identity acknowledge restaurants are using green practices, which in turn influences their willingness to pay at green restaurants. Additionally, the findings of this study advance the theoretical viewpoints for social exchange theory (SET), identity theory, and green consumption in the restaurant industry. For practical implementation, restaurateurs can improve their businesses by developing their green image, initiating green design, and incorporating eco-friendly activities to enhance patrons’ dining experience. Full article

This study observed the relationship between psychological benefits and the theory of planned behavior (TPB) in the context of an eco-friendly TV home shopping broadcasts. The theoretical framework was enhanced even further by examining the moderating role of personal norm on proenvironmental attitudes in the TV home shopping context. An online survey was conducted with Korean customers who had purchased home meal replacement (HMR) products from a TV home shopping broadcast within the past 6 months. A total of 305 samples were collected and used for the data analysis. All six of the hypotheses in the psychological benefits and TPB model were supported, meaning all constructs of psychological benefits, including warm glow, self-expressive benefits, and nature experiences, impacted TPB and behavioral intentions. Furthermore, personal norm had a moderating role in the relationship between warm glow and attitude. This research provides significant theoretical and managerial implications for the home shopping industry. Full article

Marketing campaigns of organic food emphasize utilitarian benefits and psychological benefits as well as consumer culture to enhance environmental sustainability. In order to study the purchase intention of organic food, the authors developed a model using antecedents like warm glow, subjective norm, attitude and perceived behavioral control. This study examines the model for the Indian and the USA samples and thus integrated using three theories: Theory of Planned Behavior (TPB), Pro-Social Behavior (PSB) Theory with the interaction of Consumer Culture Theory. The model is estimated using the multi-group Partial Least Square Structural Equation Modeling (PLS-SEM) technique using R software with samples from India (n = 692) and the USA (n = 640). Results differ for Indian and USA samples. The expectation of the “warm glow” resulted from an environmentally friendly purchase as having a higher influence on Indian samples than that of the USA. Further, the attitude towards organic food purchase intention is stronger for US samples than the Indian, and the group difference is significant, while all the relationships that take warm glow as an antecedent have higher β for Indian samples. Moreover, the study found that attitude towards organic food is a major element for US subsamples, whereas subjective norm plays a major role in Indian samples to adopt organic food. Managerially, the present study suggests that a firm marketing its organic food must concentrate more on “warm glow” for Indian consumers in order to improve their market share. Full article

This study analyzed the psychological benefits of environmentally friendly edible insect restaurants, by proposing that three subdimensions of psychological benefits positively affect attitude. Attitude was hypothesized to play an important role in the formation of desire and two subdimensions of behavioral intentions: intentions to use and willingness to pay more. A research model was verified using responses from 419 respondents collected in Korea. Data analysis indicated that (1) warm glow, (2) self-expressive benefits, and (3) nature experiences form attitude and that attitude helps to increase desire, which in turn positively enhances behavioral intentions. The data analysis results supported the importance of the psychological benefits of environmentally friendly edible insect restaurants. Full article

This research applies an extended theory of planned behavior (TPB) to empirically investigate consumers’ intentions in Pakistan to purchase energy-efficient appliances (EEAs). Most developing countries face energy crises. As a result, many countries consider EEAs to be part of the solution to energy-related problems and teach sustainable consumption behavior to consumers. Previous studies have neglected developing countries in this context, yet developing markets have great potential for EEA adoption. To understand EEA adoption, we incorporated such variables as warm glow benefits, utilitarian environmental benefits, normative beliefs, and moral obligations as antecedents to TPB variables. The moderating effect of eco-literacy between attitude, subjective norms, perceived behavioral control (PBC), and purchase intention toward EEAs are also examined. Data was gathered through a survey questionnaire from 673 Pakistani consumers to empirically test the proposed hypotheses. The results reveal that utilitarian environmental benefits and warm glow benefits significantly influence attitudes toward EEAs. The findings also show a positive effect of normative beliefs on subjective norms. The interaction effect of eco-literacy positively influences the relationship between attitude and purchase intention, with similar results for subjective norms and purchase intention. However, no significant moderating effect of eco-literacy is found between PBC and purchase intention. Furthermore, we performed multi-group analysis to explore significant group differences by utilizing socio-demographic variables such as gender, age, education, and income. The results show significant group differences, with females’ purchasing behavior, younger consumers, and educated consumers being more readily influenced. Finally, insights for policymakers, suggestions and future directions are discussed. Full article