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51.
Agnès Festré 《Journal of economic surveys》2010,24(3):511-538
Abstract It is now commonplace to regard social norms as a subject of growing interest in the economic literature (e.g. game theoretical approaches based on ‘other‐regarding’ individual preferences, the analysis of the impact of rewards or punishment on individuals’ behaviour through experimental economics as well as field experiments, the revival of the institutionalist tradition spurred on by the influential work of Douglas North and followed by many others and the growing influence of neuroeconomics). In this paper, we focus on the relationship between incentives and social norms and survey the literature that could constitute the foundations of a motivation‐based economic analysis of social norms. Our main findings are that (1) the interaction between incentives and social norms is far from obvious since taking social norms into account involves the introduction of supplementary motives, in addition to self‐interest, into the economic analytical framework; (2) the analysis of the interaction between incentives and social norms resists an approach exclusively in terms of crowding‐in and ‐out effects because it is sensitive to whether it concerns behaviours driven by honour or by social stigma; (3) as a result, it is difficult to precisely evaluate the policy implication of the interactions between incentives and social norms. 相似文献
52.
Nicodème Nimenya Pascal‐Firmin Ndimira Bruno Henry de Frahan 《Agricultural Economics》2012,43(6):635-653
In the context of the Partnership Agreements between the European Union (EU) and the African, Caribbean, and Pacific countries, this study estimates ad valorem tariff equivalents of European food safety standards on imports of key horticultural and fish products from Kenya, Tanzania, Uganda, and Zambia. The study uses an extension of the price‐wedge method to account for imperfect substitution and factor endowment in monopolistic competition. The estimated tariff equivalents are 55% and 98% for imports of fresh peas from Zambia to the Netherlands and the U.K., respectively. They range from 39% to 64% for imports of green beans and avocados from Kenya and from 63% to 270% for imports of frozen fish fillets in EU countries from the East African Community. We also observe large variations in tariff equivalents for the horticultural and fish products over time and EU importing countries. 相似文献
53.
In this paper we focus on the specification of revenue functions in their dual price space. We consider two distance functions–the Shephard output distance function and the directional output distance function–and define both in price space. The former is multiplicative in nature and satisfies homogeneity, whereas the latter is additive and satisfies the translation property. Functional equation methods yield the translog specification in the case of the Shephard distance function and a quadratic specification in the case of the directional distance function. Monte Carlo evidence suggests that the quadratic specification outperforms the translog in large samples and in true models with plenty of curvature. 相似文献
54.
Alberta Andreotti Patrick Le Galès Francisco Javier Moreno Fuentes 《International journal of urban and regional research》2013,37(2):576-597
This article presents an open discussion of the processes of urban secession and gentrification in contemporary European cities, arguing that intergroup social dynamics in urban spaces are generally more complex than either extreme mutual avoidance or the colonization of neighbourhoods by the wealthiest groups. We analyse the residential strategies of urban upper‐middle class managers in various European metropolitan areas through in‐depth semi‐structured interviews to argue that these groups develop complex strategies of proximity and distance in relation to other social groups. The development of these ‘partial exit’ strategies takes place through specific combinations of practices that allow groups to select the dimensions they are willing to share with other social groups, and those in which they prefer a more segregated social environment for themselves and their families. The responses of our interviewees were consistently more nuanced and complex than suggested by a simplistic theory about their drive to withdraw from society, forcing us to develop more sophisticated conceptual frameworks to account for the growing prevalence of multi‐layered identities and spheres of reference and solidarity, specific combinations of elective segregation and local involvement, and more active patterns of mobility combined with local embeddedness. 相似文献
55.
Trade secret theft is a problem that almost all organizations face. The greatest threat is employee mobility and potential unethical post‐employment behavior. This study investigates the role of individual personality traits in judgments about trade secret misappropriation. Our hypotheses were tested in three studies addressing three different situational contexts: current employees, employees about to be laid off, and students who had quit their job. Relationships were estimated with robust regression. The results show that some personality traits predict judgment about another person's trade secret misappropriation, and that the situational context in which individuals formulate their ethical judgment moderates the impact of personality traits on ethical judgment. 相似文献
56.
The estimation of physical intensity processes in the context of default risk is investigated here. Using data from Moody's Corporate Bond Default Database, a term structure of default probabilities for different rating classes is constructed each year from 1970 to 2001. Two specifications used for modeling the dynamics of the (risk‐neutral) intensity process in the bond‐pricing literature are then examined empirically: the Ornstein–Uhlenbeck and square‐root cases. The results reveal that the Ornstein–Uhlenbeck case is not an adequate modeling alternative with a rejection of this specification in five out of seven credit classes and nonsignificant mean reverting behavior for all credit classes. The square‐root case obtains better results with four credit classes out of seven for which this specification cannot be rejected and significant mean reversion parameters in many cases. © 2008 Wiley Periodicals, Inc. Jrl Fut Mark 29:95–113, 2009 相似文献
57.
Preliminary Evidence for the Neurophysiologic Effects of Online Coupons: Changes in Oxytocin,Stress, and Mood 下载免费PDF全文
Coupon use saved consumers $2.9 billion on packaged goods in 2012 with over 90 million Americans using online coupons. Besides saving money, why is coupon use so widespread? An experiment was run where participants (N = 90) shopped online and one‐half received a coupon worth $10. It was found that those who received a coupon had a 14% increase in oxytocin (OT), an 8% decrease in the stress hormone adrenocorticotropin, a 4% decrease in heart rate (HR), a 27% decrease in respiration, a 4% decrease in skin conductance levels, and a 90% increase in high‐frequency HR variability. These factors showed almost no change for those who did not receive a coupon. The findings indicate that coupons elicit physiological reactions similar to having a positive social interaction. In addition, self‐reported happiness correlated with the change in OT (r = 0.43). These findings provide new insights into why online coupon use is so pervasive. 相似文献
58.
59.
The diversifying power of inflation-linked (IL) bonds relative to traditional asset classes has changed significantly. In this paper, we study the dynamics of conditional volatilities and correlations for three asset classes, IL bonds, nominal bonds and equities, in the USA and Europe. Using a DCC-MVGARCH for the period 1997–2007, we highlight the change that took place in 2003. Although IL bonds once had definite diversification power, they are now highly correlated with nominal bonds and have reached similar volatility levels. As a result, the two asset classes are practically substitutable. This seems to be due to more stable inflation expectations and to a more liquid IL bond market. Although diversification was a valuable reason for introducing IL bonds in a global portfolio before 2003, this is no longer the case. Dynamic portfolio optimisation using our estimates of conditional correlations and volatilities clearly demonstrates that the optimal weight of IL bonds in a portfolio decreased sharply in 2003 in favour of nominal bonds and equities. 相似文献
60.
A survey on pickup and delivery problems 总被引:1,自引:0,他引:1
This paper is the first part of a comprehensive survey on pickup and delivery problems. Basically,
two problem classes can be distinguished. The first class, discussed in this paper, deals with the transportation
of goods from the depot to linehaul customers and from backhaul customers to the depot. This class is denoted
as Vehicle Routing Problems with Backhauls (VRPB). Four subtypes can be considered, namely the Vehicle Routing
Problem with Clustered Backhauls (VRPCB – all linehauls before backhauls), the Vehicle Routing Problem
with Mixed linehauls and Backhauls (VRPMB – any sequence of linehauls and backhauls permitted), the
Vehicle Routing Problem with Divisible Delivery and Pickup (VRPDDP – customers demanding delivery
and pickup service can be visited twice), and the Vehicle Routing Problem with Simultaneous Delivery and
Pickup (VRPSDP – customers demanding both services have to be visited exactly once). The second class,
dealt with in the second part of this survey, refers to all those problems where goods are transported between
pickup and delivery locations. These are the Pickup and Delivery Vehicle Routing Problem (PDVRP –
unpaired pickup and delivery points), the classical Pickup and Delivery Problem (PDP – paired pickup
and delivery points), and the Dial-A-Ride Problem (DARP – passenger transportation between paired
pickup and delivery points and user inconvenience taken into consideration). Single as well as multi vehicle
versions of the mathematical problem formulations are given for all four VRPB types, the corresponding exact,
heuristic, and metaheuristic solution methods are discussed.
相似文献