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Recently economists have become interested in why people who face social dilemmas in the experimental lab use the seemingly incredible threat of punishment to deter free riding. Three theories with evolutionary microfoundations have been developed to explain punishment. We survey these theories and use behavioral data from surveys and experiments to show that the theory called social reciprocity in which people punish norm violators indiscriminately explains punishment best.JEL Classification: C91, C92, D64, H41 Correspondence to: Jeffrey P. CarpenterWe thank Carolyn Craven, Corinna Noelke and two referees for comments, and Middlebury College for financial assistance. In addition, Carpenter acknowledges the support of the National Science Foundation (SES-CAREER 0092953).  相似文献   
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Foresight activities have often provided support for objectives such as priority-setting, networking and consensual vision-building. In this paper, we draw upon complementary evolutionary perspectives and discuss these objectives from the viewpoint of diversity which may be vital in contexts characterized by technological discontinuities and high uncertainties. We also argue that although the scanning of weak signals has been widely advocated in such contexts, the solicitation of ideas for prospective innovations may provide more focused, action-oriented, and comparable reflections of future developments. For the analysis of such ideas, we develop a collaborative foresight method RPM Screening which consists of phases for the generation, revision, multi-criteria evaluation, and portfolio analysis of innovation ideas. We also report experiences from a pilot project where this method was employed to enhance the work of the Foresight Forum of the Ministry of Trade and Industry in Finland. Encouraging results from this project and other recent applications suggest that RPM Screening can be helpful in foresight processes and the development of shared research agendas.  相似文献   
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Conclusion In the guise of ABB Daimler-Benz Transportation and Siemens, Germany has two powerful systems suppliers in a good position to keep pace with other systems suppliers on global markets. As in the air-travel industry it is conceivable that developments are moving towards a uniform rail technology. Although the buy national principle still dominates procurement practices, and national egos still dominate the development of rail systems (ICE, TGV), growing competition from Japan could force Europe to develop a European system. This would significantly increase the chances of European industry in bidding for international contracts. For this reason the EU should not relent in its efforts to standardise European rail systems.  相似文献   
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The Norwegian Consumer Bankruptcy Act was passed 17 July 1992 to give persons with "serious debt problems (. . .) the possibility to gain control over their economy." The Act contains provisions for negotiations between the debtor and the creditors, for court rulings on repayment plans, and for a discharge of the debts not covered by the plan. The origin of the Act was a social welfare approach to the problem of overindebtedness. However, the Act embodies an inherent contradiction in that it also includes moral elements in order to prevent it from exerting a negative influence on the perceived obligation to pay one's debts. This contradiction has given the courts a wide scope of discretion in the application of the Act. As a result, cases are treated differently in different jurisdictions. Some judges put more emphasis on moral evaluations than others. This situation also gives room for strategic action from creditor groups who typically are repeat players in cases of consumer bankruptcy. In this way the more objective, social welfare approach of the Act is undermined.  相似文献   
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Regulation of financial markets arose in a simpler time when transactions were carried out face to face on an exchange floor or in a banker's office—when trading was localized and the variety of financial instruments was small. Today the task of regulators is much more difficult. Markets are global, trading takes place in cyberspace, and the variety of financial instruments is limitless.
The initial focus, and still the central concern, of our regulatory system is to ensure full corporate disclosure and transparency of trading markets. But regulation today goes far beyond disclosure requirements. The existing tendency to expand regulation to match the expanding financial markets is likely to be inefficient, unwieldy, and too costly, given the increased complexity and global nature of financial markets. A new approach and a new regulatory mindset are needed—one in which regulators aim to identify and provide only necessary regulation rather than simply continuing to expand regulatory oversight. Such a focused approach to regulation would separate what is regulated from what is not. Those aspects of banking that are essential to the integrity of the payments system would be regulated while other aspects would not. Some securities and derivatives markets would be regulated, while others would not. And market participants would be able to choose which markets to participate in. Given an ever-expanding financial system, such a focused approach to regulation is not only the most cost effective one—it is also likely to prove the only workable alternative to a system that is now under great pressure.  相似文献   
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With increasing outsourcing and the growing importance of product innovation as a means for creating competitive advantage, the integration of purchasing and product development processes has become a key issue for many firms. Although, consequently, the integration of purchasing and suppliers in product development has attracted growing attention from practitioners and researchers, most research on the topic remains limited to the context of single development projects. The integration with long-term issues such as technological alignment between supplier and manufacturer is often neglected. This limited conception and the lack of a coherent definition of what purchasing integration in product involvement is form a major impediment to the advancement of knowledge in this field. Therefore, this article develops a framework encompassing various activities across different management levels, which embody the alignment and integration of purchasing and product development processes.  相似文献   
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As business-to-business marketing channels become more international in scope, communication in channels occurs among a more diverse set of channel participants from different national cultures. Do such cultural variations influence channel communications and if so, how? This study examines these questions in international business-to-business marketing channels comprised of channel members representing different cultural contexts. The findings show that there is a relationship between culture and channel communication in international channels. This influence stemming from “cultural distance” may have significant implications as business moves into the E-commerce era of Internet-based B2B international channels of distribution.  相似文献   
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