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This is the rst systematic experimental study of the comparative performance of two incentive compatible mechanisms for public goods provision: the Basic Quadratic mechanism by Groves and Ledyard and the Paired-Diierence mechanism by W alker. Our experiments demonstrate that the performance of the Basic Quadratic mechanism under a high punishment parameter(More)
Adaptive learning and a fairness motive we call ''punishment'' are the basis for two prominent and substantially different types of theories of ultimatum bargaining behavior. We compare adaptive learning and fairness in an experiment that involves punishment and reward versions of the ultimatum game. We draw conclusions concerning the abilities and(More)
The idea that trust is a stumbling block in the growth of Internet activities is not a new one. As many researchers have recognized, lack of trust can create problems for commerce in general, and for e-commerce in particular [3]. In 1997, one of the first e-commerce market surveys showed that consumers had strong privacy concerns about shopping on the(More)
OBJECTIVE To study the relationship between polymorphism of genes XPA, XPC, XPD, XRCC1 and susceptibility to acute lymphoblastic leukemia (ALL) in a Chinese population. METHODS Polymorphism were determined by a case-control study through matrix-assisted laser desorption/ionization tandem time-of-flight mass spectrometry method of Mass-ASSAY platform in(More)
In this study, several statistical methods including cluster analysis, seasonal Kendall test, factor analysis/principal component analysis and principal component regression were used to evaluate the spatiotemporal variation of water quality and identify the sources of water pollution in the Zhangweinan River basin. Results of spatial cluster analysis and(More)
We consider a duopoly market in which two retailers with different reputation compete in prices and one of the retailers is considering selling through a new channel. Consumers are reputation sensitive and averse to the new channel. In addition, the reputation sensitivity and new channel aversion are heterogeneous across consumers. In such a setting, we(More)
Keywords: Cross-sectional heterogeneity Dotcom Online branch of multichannel retailer Price dispersion Price level a b s t r a c t The explosive growth of Internet retailing offers an excellent opportunity to collect online prices at a dis-aggregate (e.g., individual store and/or individual product) level over time and to investigate the evolution of(More)