Crises in the past have caused devastating,long-lasting impacts on the global economy.The after-effects always bring some dynamic and rigorous challenges for businesses and governments.Such challenges have always been...Crises in the past have caused devastating,long-lasting impacts on the global economy.The after-effects always bring some dynamic and rigorous challenges for businesses and governments.Such challenges have always been a point of discussion for scholars.The recent COVID-19 pandemic emaciated the global economy,leaving everyone mired in uncertainty,fear,and psychological impairments.One of the headwind features utilized by consumers during pandemic was panic buying(PB),which must be explored in various contexts for policymakers and practitioners.To address this gap,this study deployed a moderated mediation mechanism,integrating the health belief model(HBM)and competitive arousal theory(CAT)to excavate the notions underlying PB with the intrusion of evolved real-time psychological disorders:intolerance of uncertainty(IU)and cyberchondria(CYC).The study was conducted as a natural experiment in a South Asian developing economy using online surveys.It found that health beliefs—perceived severity(PSV)and perceived susceptibility(PSC)—positively impact perceived arousal(PA),which causes PB,and that PA has a sturdy mediator role.Moreover,in the relationship between health beliefs and arousal,the different psychological disorders were found to have significant moderating roles The study findings can help mitigate risk uncertainties and panic situations and thus contribute to consumers’wellbeing.展开更多
Online shopping in Cameroon is growing rapidly and gaining considerable ground.The phenomenon is relatively new as compared to the traditional brick-and-mortar store(serving customers face-to-face in a building rather...Online shopping in Cameroon is growing rapidly and gaining considerable ground.The phenomenon is relatively new as compared to the traditional brick-and-mortar store(serving customers face-to-face in a building rather than online).As the world faces digital transformations,businesses in Cameroon are seeking new ways to reach their customers and create favourable environments to effectively carryout online purchase.This study examines the factors that affect consumer online buying behaviour in Cameroon.Three theories guided this investigation:the Technology Acceptance Model(Davis,1989),Diffusion of Innovations Theory(Rogers,1995),and Uses and Gratifications Theory(Katz&Blumler,1974).The study focuses on students of the University of Buea who carry out online shopping.Purposive sampling is used,and data are collected from 365 respondents through a questionnaire with open and closed ended questions.Analysis of data is done with the use of the Statistical Package for Social Scientists(SPSS)Version 21 to determine the types of products consumers buy online;the degree to which consumer trust and satisfaction affect consumer loyalty;and the specific social,economic,and market factors that affect online buying behaviour.Findings indicate that:Consumers mostly buy fashion items(74.3%),electronics(44.7%),cosmetics(37.3%),and house equipment(34%)online.Consumers will repeat purchase from a marketer if they trust and are satisfied with the product and service quality(81.1%);hence,they will also encourage others to buy.If they are dissatisfied,they will not repeat purchase from the online store.Advertisement(76.1%),attractive pricing/discount(71.7%),product quality(71%),service quality(64.1%),convenience(72.3%),available income/money(49.6%),word of mouth recommendation(41.9%),and personal motivation(62.7%)constitute the major factors that affect consumer online buying behaviour.Results of the hypotheses testing show that:H1=Consumers buy more of fashion items online(X^(2)=9.950;df=16;p=0.869);H2=There is a significant relatio展开更多
Since 2016,community group buying has grown significantly in China,largely driven by its efficient logistics,supply chains,low prices,and convenience.This model has been further popularized during the COVID-19 pandemi...Since 2016,community group buying has grown significantly in China,largely driven by its efficient logistics,supply chains,low prices,and convenience.This model has been further popularized during the COVID-19 pandemic due to its effectiveness in meeting daily needs while minimizing human-to-human contact.A key component of this business model is the“group leaders”-influential individuals within a community responsible for managing group buying activities,which include order collection,supplier liaison,and goods distribution.Their primary task is to form and sustain a reliable community group buying consortium,a task that demands excellent organizational and interpersonal skills.This paper examines this phenomenon using the lens of the differential mode of association,a theoretical model explaining interpersonal relationships in traditional Chinese society.The research indicates that group leaders,through regular interaction with consumers,are able to alter their social network position,increase their influence,understand consumer needs,provide satisfying services,and enhance trust,thereby transforming consumers into loyal group buying participants.This transformation not only brings stability to group buying activities but also reinforces the community influence of group leaders,thus fostering the growth of community group buying.展开更多
This comprehensive article examines the phenomenon of consumer addiction,primarily focusing on shopping addiction and its dimensions,including brand addiction.It delves into the underlying causes,manifestations,and co...This comprehensive article examines the phenomenon of consumer addiction,primarily focusing on shopping addiction and its dimensions,including brand addiction.It delves into the underlying causes,manifestations,and consequences of consumer addiction from both consumer and marketer perspectives,shedding light on the ethical and cultural considerations within today's society.Consumer addiction is characterized by recurrent,irresistible purchasing behaviors driven by negative emotions such as anxiety and impulsivity.It is recognized as a behavioral addiction closely intertwined with consumerism.The article emphasizes the imperative for ethical marketing practices to mitigate the exacerbation of addictive behaviors while acknowledging the impact of culture on consumer choices.The article also discusses the crucial role of research in understanding the implications of consumer addiction on the economy,and it suggests that marketers should focus on fostering positive brand addiction rather than exploiting consumerism.It underscores the influence of cultural factors on addictive consumption and calls for responsible marketing practices and governmental regulations.In conclusion,this article highlights the critical significance of consumer addiction in the field of marketing and its multifaceted implications for both consumers and businesses.It underscores the need for ethical marketing strategies,cultural awareness,and responsible brand management to address this complex phenomenon in contemporary society.展开更多
Food hoarding is prevalent during the COVID-19 pandemic.To investigate the mechanism of urban consumers’food hoarding behaviors,we categorize hoarding motives into rational and irrational ones.Using random online sur...Food hoarding is prevalent during the COVID-19 pandemic.To investigate the mechanism of urban consumers’food hoarding behaviors,we categorize hoarding motives into rational and irrational ones.Using random online survey samples from three cities in China,we employ the multivariate probit model to investigate the rational and irrational motives on food hoarding behavior.Our results confirmed the existence of both rational and irrational food hoarding,and also found factors attributing to the different buying behaviors.The amount of food at hand and the expectation on the infection possibility of COVID-19 are two major factors affecting rational hoarding.Bad mood and herd psychology are factors contributing to panic buying.This study provides an empirical evidence to support intervention policies aiming at mitigating panic buying behavior.展开更多
Group buying （GB） has emerged and evolved into various forms over the past decade. We investigate a distinct form of GB, namely consumer-driven group buying, whereby some consumers form purchase groups to visit stor...Group buying （GB） has emerged and evolved into various forms over the past decade. We investigate a distinct form of GB, namely consumer-driven group buying, whereby some consumers form purchase groups to visit stores together and negotiate for discounts. We refer to these consumers as GB consumers that differ from regular consumers who visit stores individually and pay regular prices. Visited by a purchase group, a store has to make an immediate decision to serve their demand in its entirety. Turned down by the first store it visits, the purchase group continues to visit the other store. After accommodating GB demand, the stores use remaining stocks to serve regular consumers. We demonstrate that GB can be a treat to stores that adopt proper policies to utilize it as an instrument to reach consumers. The stores are able to accommodate group demand at a price lower than regular price in most circumstances but still manage to earn stable profits. The presence of regular consumers has a subtle effect on equilibrium formation, by strengthening the stores＇ power in negotiating with GB consumers to make group price weakly increase with group size. Moreover, competing stores are able to manipulate the interactions between purchase groups and collectively earn a higher total profit than a monopolist store when GB consumers account for a small fraction of market base and competition is intense.展开更多
Compulsive buying (CB) is a proposed disorder of dysregulated buying behaviour that is associated with high rates of Axis I comorbidity, particularly depression and anxiety. It has been proposed that purchasing behavi...Compulsive buying (CB) is a proposed disorder of dysregulated buying behaviour that is associated with high rates of Axis I comorbidity, particularly depression and anxiety. It has been proposed that purchasing behaviours may serve as a maladaptive means of alleviating negative affect in vulnerable individuals. The aim of the current study was to experimentally manipulate affect to test this mood repair hypothesis. Compulsive buyers (n = 26) and pathological gamblers (n = 23) diagnosed using structured clinical interviews (SCID) and healthy controls (n = 24) were randomly assigned to either a negative or positive mood-induction procedure (MIP) and participated in an experimental buying task. Results revealed that, irrespective of mood induction condition, compulsive buyers reported a greater urge to acquire items, purchased more items, and spent a greater total amount of money during the buying task when compared to the healthy control group. Compulsive buyers were also faster than pathological gamblers in making decisions to purchase, even after controlling for motor impulsivity (BIS). There was, however, no main effect of mood-induction condition or group by condition interaction. Limitations and future directions are discussed.展开更多
Coronavirus disease(COVID-19)is an highly infectious respiratory disease caused by a newly discovered coronavirus.Most people infected by the COVID-19 virus will experience mild to moderate respiratory illness and rec...Coronavirus disease(COVID-19)is an highly infectious respiratory disease caused by a newly discovered coronavirus.Most people infected by the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment;a portion of infected people may die.Under coronavirous disease pandemic situation,human normal life,movement and business has been disturbed due to lockdown and closing of shopping malls and business centers in the city.Nowadays,e-commerce is a vigorous tool for diminishing streaming business processes,cycle time,organizational costs,stay at home,maintain social distancing,protect from virus,and enlightening associations with both shoppers and business partners.The research investigated the buying behavior of Bangladeshi shoppers under coronavirus disease(COVID-19)pandemic situation in case of online perspective.The research reconnoitered the impact of five aspects:health aspect,price aspect,product aspect,trust aspect,and place aspect on online buying behavior under coronavirus disease(COVID-19)pandemic situation in Bangladesh.Data were collected through a structured questionnaire by online survey method from 155 samples which encompass online shoppers in country.Simple random sampling technique were used.Data were analyzed using factor analysis,reliability analysis,and multiple regression analysis.Findings revealed that four out of five aspects:health aspect,price aspect,product aspect,and place aspect had a positive and significant influence on online buying behavior under coronavirus disease(COVID-19)pandemic situation in the perspective of Bangladesh.The assessment generates responsiveness among online practicing companies,researchers,managers,shoppers,and prospects online buyers.Online functioning businesses could be a successful leading aspects for explaining online buying behavior under coronavirus disease(COVID-19)pandemic situation in the context of Bangladesh.展开更多
The potentiality that the current government strategic petroleum reserves (GSPRs) can be improved by the pre-allocation of GSPR drawing rights has been neglected. This paper proposes to pre-allocate the GSPR drawing r...The potentiality that the current government strategic petroleum reserves (GSPRs) can be improved by the pre-allocation of GSPR drawing rights has been neglected. This paper proposes to pre-allocate the GSPR drawing rights, and proves that by doing this the efficiency of GSPR and the society’s incentive to finance GSPR can be improved. Particularly, the example demonstrates that the incentive improvement can be very significant. Since it takes huge expenditure on GSPR and it is very important to gain support from the consumers by improving GSPR, the proposal is quite worth considering.展开更多
Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to p...Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to participate in the auction as a whole is helpful to increase purchasing power. However, SUs could suffer from a new group cheating problem, i.e., parts of users conspire to manipulate the auction by submitting untruthful bids. Existing auction mechanisms were mainly designed to be strategy-proof only for individual user and can't deal with group cheating. In this paper, a novel spectrum auction mechanism called COSTAG(COst Sharing based Truthful Auction with Group-buying) is proposed to address the group cheating problem. COSTAG consists of a grouping rule to perform grouping and a payment rule to determine the market-clearing price in the spectrum auction. Different from single-echelon pricing approach employed in existing works, a multi-echelon pricing strategy is designed to increase the transaction rate and optimize social profit for the auction. Comprehensive theoretical analysis shows that COSTAG can satisfy the crucial economic robustness properties, both individual and group truthfulness. Simulations demonstrate that comparing with existing works, COSTAG can improve the system performance significantly.展开更多
The fairness concern behavior is particularly common among members in supply chain framework.The downstream retailers often compare their profits with those of the other members in the supply chain,especially that of ...The fairness concern behavior is particularly common among members in supply chain framework.The downstream retailers often compare their profits with those of the other members in the supply chain,especially that of the supplier,and do not like the unfavorable distribution of the total profits.This work considers a supply chain consisting of a supplier and two competing retailers with fairness concerns.The supplier offers a wholesale contract with quantity discount,and the two competing retailers have the options of individual purchasing and group buying.Through a Stackelberg game model,the optimal decisions for the players are obtained for the group buying and the individual purchasing strategies.The results indicate that the supplier benefits more than the retailers from the group buying strategy.In particular,the group buying strategy gives the supplier a higher profit if the operational cost of group buying is below a threshold.Furthermore,the fairness concern behavior of the retailers does not always hurt the profit of the supplier.Specifically,the supplier will benefit from the fairness concern behavior of the retailers in individual purchasing when the retailers operates in a relatively poor environment.Finally,market competition between the two fairness concerned retailers does not always benefit the supplier.Fierce competition between the fairness concerned retailers reduces the supplier's profit if the group buying strategy is used when the retailers operates in a relatively poor environment.展开更多
BACKGROUND Although panic buying(PB)is a ubiquitous behavior,it became prominent during the coronavirus disease 2019 pandemic.However,studies are inadequate to explore the different aspects of it,even though it covers...BACKGROUND Although panic buying(PB)is a ubiquitous behavior,it became prominent during the coronavirus disease 2019 pandemic.However,studies are inadequate to explore the different aspects of it,even though it covers several perspectives of life and academic domains.AIM To assess the research that have been conducted on PB.METHODS A search was conducted to identify the articles in PubMed,PubMed Central,Scopus,and Google Scholar using the search term“panic buying”on November 15,2020.A total of 104 articles was extracted from the initial search.After removing duplicates and initial and full-text screening,42 articles were included in the study.We only considered peer-reviewed published articles that can be downloaded in a full portable document format.Articles published in other languages and preprints were excluded.RESULTS Among the 42 articles,27 were original contributions,6 were correspondences,3 were commentaries,3 were review articles,and there was one each for editorial,opinion,and discussion type of articles.Several domains have been researched such as psychology,responsible factors,supply chain,management,disaster preparedness,e-commerce,consumer behavior,marketing,prevention strategies,media,social network,economics,personality,and engineering.Authors from several disciplines,such as psychiatry,management,economics,business,sales and marketing,consumer behavior,public health,communication,information management,sociology,engineering,business administration,psychology,nursing,health economics,food policy,epidemiology,and community health,have been studied it.Definition,causative model,econometric model,controlling strategy,and measuring instrument have been reported.A total of 18 papers had cross-country collaboration,and ten were funded projects.Most of the authors were affiliated with the institutions of Australia,Bangladesh,China,India,Singapore,and the United States.CONCLUSION PB is a relatively newer concept to get the attention of the research community.Further robust studies with replication of展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.72272136 and 72172024)Humanities and Social Science Project from the Ministry of Education of China(20YJA630061).
文摘Crises in the past have caused devastating,long-lasting impacts on the global economy.The after-effects always bring some dynamic and rigorous challenges for businesses and governments.Such challenges have always been a point of discussion for scholars.The recent COVID-19 pandemic emaciated the global economy,leaving everyone mired in uncertainty,fear,and psychological impairments.One of the headwind features utilized by consumers during pandemic was panic buying(PB),which must be explored in various contexts for policymakers and practitioners.To address this gap,this study deployed a moderated mediation mechanism,integrating the health belief model(HBM)and competitive arousal theory(CAT)to excavate the notions underlying PB with the intrusion of evolved real-time psychological disorders:intolerance of uncertainty(IU)and cyberchondria(CYC).The study was conducted as a natural experiment in a South Asian developing economy using online surveys.It found that health beliefs—perceived severity(PSV)and perceived susceptibility(PSC)—positively impact perceived arousal(PA),which causes PB,and that PA has a sturdy mediator role.Moreover,in the relationship between health beliefs and arousal,the different psychological disorders were found to have significant moderating roles The study findings can help mitigate risk uncertainties and panic situations and thus contribute to consumers’wellbeing.
文摘Online shopping in Cameroon is growing rapidly and gaining considerable ground.The phenomenon is relatively new as compared to the traditional brick-and-mortar store(serving customers face-to-face in a building rather than online).As the world faces digital transformations,businesses in Cameroon are seeking new ways to reach their customers and create favourable environments to effectively carryout online purchase.This study examines the factors that affect consumer online buying behaviour in Cameroon.Three theories guided this investigation:the Technology Acceptance Model(Davis,1989),Diffusion of Innovations Theory(Rogers,1995),and Uses and Gratifications Theory(Katz&Blumler,1974).The study focuses on students of the University of Buea who carry out online shopping.Purposive sampling is used,and data are collected from 365 respondents through a questionnaire with open and closed ended questions.Analysis of data is done with the use of the Statistical Package for Social Scientists(SPSS)Version 21 to determine the types of products consumers buy online;the degree to which consumer trust and satisfaction affect consumer loyalty;and the specific social,economic,and market factors that affect online buying behaviour.Findings indicate that:Consumers mostly buy fashion items(74.3%),electronics(44.7%),cosmetics(37.3%),and house equipment(34%)online.Consumers will repeat purchase from a marketer if they trust and are satisfied with the product and service quality(81.1%);hence,they will also encourage others to buy.If they are dissatisfied,they will not repeat purchase from the online store.Advertisement(76.1%),attractive pricing/discount(71.7%),product quality(71%),service quality(64.1%),convenience(72.3%),available income/money(49.6%),word of mouth recommendation(41.9%),and personal motivation(62.7%)constitute the major factors that affect consumer online buying behaviour.Results of the hypotheses testing show that:H1=Consumers buy more of fashion items online(X^(2)=9.950;df=16;p=0.869);H2=There is a significant relatio
文摘Since 2016,community group buying has grown significantly in China,largely driven by its efficient logistics,supply chains,low prices,and convenience.This model has been further popularized during the COVID-19 pandemic due to its effectiveness in meeting daily needs while minimizing human-to-human contact.A key component of this business model is the“group leaders”-influential individuals within a community responsible for managing group buying activities,which include order collection,supplier liaison,and goods distribution.Their primary task is to form and sustain a reliable community group buying consortium,a task that demands excellent organizational and interpersonal skills.This paper examines this phenomenon using the lens of the differential mode of association,a theoretical model explaining interpersonal relationships in traditional Chinese society.The research indicates that group leaders,through regular interaction with consumers,are able to alter their social network position,increase their influence,understand consumer needs,provide satisfying services,and enhance trust,thereby transforming consumers into loyal group buying participants.This transformation not only brings stability to group buying activities but also reinforces the community influence of group leaders,thus fostering the growth of community group buying.
文摘This comprehensive article examines the phenomenon of consumer addiction,primarily focusing on shopping addiction and its dimensions,including brand addiction.It delves into the underlying causes,manifestations,and consequences of consumer addiction from both consumer and marketer perspectives,shedding light on the ethical and cultural considerations within today's society.Consumer addiction is characterized by recurrent,irresistible purchasing behaviors driven by negative emotions such as anxiety and impulsivity.It is recognized as a behavioral addiction closely intertwined with consumerism.The article emphasizes the imperative for ethical marketing practices to mitigate the exacerbation of addictive behaviors while acknowledging the impact of culture on consumer choices.The article also discusses the crucial role of research in understanding the implications of consumer addiction on the economy,and it suggests that marketers should focus on fostering positive brand addiction rather than exploiting consumerism.It underscores the influence of cultural factors on addictive consumption and calls for responsible marketing practices and governmental regulations.In conclusion,this article highlights the critical significance of consumer addiction in the field of marketing and its multifaceted implications for both consumers and businesses.It underscores the need for ethical marketing strategies,cultural awareness,and responsible brand management to address this complex phenomenon in contemporary society.
基金The authors thank the National Natural Science Foundation of China(72003008)the Social Science Funding from Beijing Municipal Education Commission,China(SM201810011002)2017 Beijing High Level Group Building Program,China(IDHT20170505).
文摘Food hoarding is prevalent during the COVID-19 pandemic.To investigate the mechanism of urban consumers’food hoarding behaviors,we categorize hoarding motives into rational and irrational ones.Using random online survey samples from three cities in China,we employ the multivariate probit model to investigate the rational and irrational motives on food hoarding behavior.Our results confirmed the existence of both rational and irrational food hoarding,and also found factors attributing to the different buying behaviors.The amount of food at hand and the expectation on the infection possibility of COVID-19 are two major factors affecting rational hoarding.Bad mood and herd psychology are factors contributing to panic buying.This study provides an empirical evidence to support intervention policies aiming at mitigating panic buying behavior.
文摘Group buying （GB） has emerged and evolved into various forms over the past decade. We investigate a distinct form of GB, namely consumer-driven group buying, whereby some consumers form purchase groups to visit stores together and negotiate for discounts. We refer to these consumers as GB consumers that differ from regular consumers who visit stores individually and pay regular prices. Visited by a purchase group, a store has to make an immediate decision to serve their demand in its entirety. Turned down by the first store it visits, the purchase group continues to visit the other store. After accommodating GB demand, the stores use remaining stocks to serve regular consumers. We demonstrate that GB can be a treat to stores that adopt proper policies to utilize it as an instrument to reach consumers. The stores are able to accommodate group demand at a price lower than regular price in most circumstances but still manage to earn stable profits. The presence of regular consumers has a subtle effect on equilibrium formation, by strengthening the stores＇ power in negotiating with GB consumers to make group price weakly increase with group size. Moreover, competing stores are able to manipulate the interactions between purchase groups and collectively earn a higher total profit than a monopolist store when GB consumers account for a small fraction of market base and competition is intense.
文摘Compulsive buying (CB) is a proposed disorder of dysregulated buying behaviour that is associated with high rates of Axis I comorbidity, particularly depression and anxiety. It has been proposed that purchasing behaviours may serve as a maladaptive means of alleviating negative affect in vulnerable individuals. The aim of the current study was to experimentally manipulate affect to test this mood repair hypothesis. Compulsive buyers (n = 26) and pathological gamblers (n = 23) diagnosed using structured clinical interviews (SCID) and healthy controls (n = 24) were randomly assigned to either a negative or positive mood-induction procedure (MIP) and participated in an experimental buying task. Results revealed that, irrespective of mood induction condition, compulsive buyers reported a greater urge to acquire items, purchased more items, and spent a greater total amount of money during the buying task when compared to the healthy control group. Compulsive buyers were also faster than pathological gamblers in making decisions to purchase, even after controlling for motor impulsivity (BIS). There was, however, no main effect of mood-induction condition or group by condition interaction. Limitations and future directions are discussed.
文摘Coronavirus disease(COVID-19)is an highly infectious respiratory disease caused by a newly discovered coronavirus.Most people infected by the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment;a portion of infected people may die.Under coronavirous disease pandemic situation,human normal life,movement and business has been disturbed due to lockdown and closing of shopping malls and business centers in the city.Nowadays,e-commerce is a vigorous tool for diminishing streaming business processes,cycle time,organizational costs,stay at home,maintain social distancing,protect from virus,and enlightening associations with both shoppers and business partners.The research investigated the buying behavior of Bangladeshi shoppers under coronavirus disease(COVID-19)pandemic situation in case of online perspective.The research reconnoitered the impact of five aspects:health aspect,price aspect,product aspect,trust aspect,and place aspect on online buying behavior under coronavirus disease(COVID-19)pandemic situation in Bangladesh.Data were collected through a structured questionnaire by online survey method from 155 samples which encompass online shoppers in country.Simple random sampling technique were used.Data were analyzed using factor analysis,reliability analysis,and multiple regression analysis.Findings revealed that four out of five aspects:health aspect,price aspect,product aspect,and place aspect had a positive and significant influence on online buying behavior under coronavirus disease(COVID-19)pandemic situation in the perspective of Bangladesh.The assessment generates responsiveness among online practicing companies,researchers,managers,shoppers,and prospects online buyers.Online functioning businesses could be a successful leading aspects for explaining online buying behavior under coronavirus disease(COVID-19)pandemic situation in the context of Bangladesh.
文摘The potentiality that the current government strategic petroleum reserves (GSPRs) can be improved by the pre-allocation of GSPR drawing rights has been neglected. This paper proposes to pre-allocate the GSPR drawing rights, and proves that by doing this the efficiency of GSPR and the society’s incentive to finance GSPR can be improved. Particularly, the example demonstrates that the incentive improvement can be very significant. Since it takes huge expenditure on GSPR and it is very important to gain support from the consumers by improving GSPR, the proposal is quite worth considering.
基金partially supported by the National Science Foundation of China (No. 61070211, No. 61003304, No 61501482 and No 61070201)Equipment research foundation (No.6140134040216)the Ph.D. Programs Foundation of Ministry of Education of China (No. 20114307120003)
文摘Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to participate in the auction as a whole is helpful to increase purchasing power. However, SUs could suffer from a new group cheating problem, i.e., parts of users conspire to manipulate the auction by submitting untruthful bids. Existing auction mechanisms were mainly designed to be strategy-proof only for individual user and can't deal with group cheating. In this paper, a novel spectrum auction mechanism called COSTAG(COst Sharing based Truthful Auction with Group-buying) is proposed to address the group cheating problem. COSTAG consists of a grouping rule to perform grouping and a payment rule to determine the market-clearing price in the spectrum auction. Different from single-echelon pricing approach employed in existing works, a multi-echelon pricing strategy is designed to increase the transaction rate and optimize social profit for the auction. Comprehensive theoretical analysis shows that COSTAG can satisfy the crucial economic robustness properties, both individual and group truthfulness. Simulations demonstrate that comparing with existing works, COSTAG can improve the system performance significantly.
基金the National Natural Science Foundation of China under Grant 71971052,Grant 71671033,the Fund for Innovative Research Groups of the National Natural Science Foundation of China under Grant 71621061the Major International Joint Research Project of the National Natural Science Foundation of China under Grant 71520107004+2 种基金the Fundamental Research Funds for the Central Universities under Grant N2006006the Project of Promoting Talents in Liaoning Province under Grant XLYC1807252the 111 Project under Grant B16009。
文摘The fairness concern behavior is particularly common among members in supply chain framework.The downstream retailers often compare their profits with those of the other members in the supply chain,especially that of the supplier,and do not like the unfavorable distribution of the total profits.This work considers a supply chain consisting of a supplier and two competing retailers with fairness concerns.The supplier offers a wholesale contract with quantity discount,and the two competing retailers have the options of individual purchasing and group buying.Through a Stackelberg game model,the optimal decisions for the players are obtained for the group buying and the individual purchasing strategies.The results indicate that the supplier benefits more than the retailers from the group buying strategy.In particular,the group buying strategy gives the supplier a higher profit if the operational cost of group buying is below a threshold.Furthermore,the fairness concern behavior of the retailers does not always hurt the profit of the supplier.Specifically,the supplier will benefit from the fairness concern behavior of the retailers in individual purchasing when the retailers operates in a relatively poor environment.Finally,market competition between the two fairness concerned retailers does not always benefit the supplier.Fierce competition between the fairness concerned retailers reduces the supplier's profit if the group buying strategy is used when the retailers operates in a relatively poor environment.
文摘BACKGROUND Although panic buying(PB)is a ubiquitous behavior,it became prominent during the coronavirus disease 2019 pandemic.However,studies are inadequate to explore the different aspects of it,even though it covers several perspectives of life and academic domains.AIM To assess the research that have been conducted on PB.METHODS A search was conducted to identify the articles in PubMed,PubMed Central,Scopus,and Google Scholar using the search term“panic buying”on November 15,2020.A total of 104 articles was extracted from the initial search.After removing duplicates and initial and full-text screening,42 articles were included in the study.We only considered peer-reviewed published articles that can be downloaded in a full portable document format.Articles published in other languages and preprints were excluded.RESULTS Among the 42 articles,27 were original contributions,6 were correspondences,3 were commentaries,3 were review articles,and there was one each for editorial,opinion,and discussion type of articles.Several domains have been researched such as psychology,responsible factors,supply chain,management,disaster preparedness,e-commerce,consumer behavior,marketing,prevention strategies,media,social network,economics,personality,and engineering.Authors from several disciplines,such as psychiatry,management,economics,business,sales and marketing,consumer behavior,public health,communication,information management,sociology,engineering,business administration,psychology,nursing,health economics,food policy,epidemiology,and community health,have been studied it.Definition,causative model,econometric model,controlling strategy,and measuring instrument have been reported.A total of 18 papers had cross-country collaboration,and ten were funded projects.Most of the authors were affiliated with the institutions of Australia,Bangladesh,China,India,Singapore,and the United States.CONCLUSION PB is a relatively newer concept to get the attention of the research community.Further robust studies with replication of
