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While foreign policy as well as economic, ideological and purely humanitarian considerations all continue to play a role in economic relations between the CMEA countries and the Third World, a shift in the relative weights of these various aspects has become discernible in recent years. What conclusions can be drawn as to the future behaviour of the CMEA countries towards the developing countries?  相似文献   
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In this paper, the validity of vignette analyses of various forms of deviant behavior in the presence of opportunities is analyzed on the basis of ideas derived from cognitive psychology. Abelson’s Script Theory together with insights into human memory of visual and verbal information, allow the assumption that vignette analyses using visual stimuli are valid measures of deviant behavior in particular. The study includes an empirical examination of these ideas (n = 450). Nonparticipant observations and vignette analyses with visual and verbal material were carried out with regard to three forms of deviant behavior occurring in the presence of opportunities presenting themselves in everyday life. Observed and self-reported frequencies of deviant behavior or deviant intentions were counted and cross-tabulated. Log-linear analyses with dummy coding using observation data as reference category were run. Data analyses yielded the result that frequencies of deviant behavior were related to the techniques of data collection under consideration. Especially vignette analyses of the return of ‘lost letters’ that use both visual and verbal stimuli overestimate ‘actual’ (i.e. observed) return rates. This result is discussed with regard to the underlying methodological assumptions as well as its implications.  相似文献   
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Since the widening of the fluctuation bands in the European Monetary System in 1993 the previous core countries have pursued a “D-Mark shadowing”. The characteristic feature of this shadowing is the participating countries' willingness to voluntarily return to, and maintain, the old exchange rate parities. Our author analyses this process and its consequences for the planned monetary union.  相似文献   
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The present study analyses firm heterogeneity and sector‐specific technology. The theoretical model stands on the assumption of maximizing the return on capital and overcomes problems involved in simple profit maximization. The results show that a random parameter model with sector dummies and heteroscedasticity is the most appropriate model specification for distinguishing firm‐level and sector‐level efficiency and heterogeneity. The heterogeneity among firms as well as among sectors was found to be an important characteristic in Czech food processing. This holds for production technology as well as for technical efficiency. Moreover, the decomposition of total variance shows that intrasectoral differences in technologies are much more pronounced than the intersectoral differences. The differences in intrasector heterogeneity also suggest that the food processing industry will be subject to accelerated structural change in the coming years. Moreover, we found that on average the companies highly exploit their production possibilities. However, some companies cannot keep pace with competitors. Because leapfrogging does not appear to be present in selected industries (except for Milling), structural change is expected to occur in such a way that the most successful companies will strengthen their position.  相似文献   
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This paper examines whether domestic firms benefit from the pro‐competitive effects of imports from abroad and from the presence of foreign‐owned firms in the host country in three Irish market‐services sectors between 2001 and 2007. Grouping the three sectors together masks opposing effects in individual sectors. Where significant, the effect of foreign presence on domestic firms tends to be negative, this is mainly the case in wholesale and retail trade. Despite it being of lesser importance than foreign presence in these sectors, import competition from abroad is negatively associated with domestic firms' productivity in wholesale and retail trade, but positively in transport, storage and communication. There is no significant effect of foreign presence or import competition in real estate, rental and business activities. Using capital‐labour ratios as an input‐based indicator related to productivity suggests that domestic firms adapt to increased foreign competition by adjusting their inputs.  相似文献   
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We study behavior in the race game with the aim of assessing whether teams can create synergies. The race game has the advantage that the optimal strategy depends neither on beliefs about other players nor on distributional or efficiency concerns. Our results reveal that teams not only outperform individuals but that they can also beat the “truth-wins” benchmark. In particular, varying the length of the race game we find that the team advantage increases with the complexity of the game.  相似文献   
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We examine the willingness to pay (WTP) for green products in air travel. Green products in aviation are supplementary services, which are sold on top of the travel service (e.g. carbon offsets, organic on‐board food). We identify a set of potential green products in aviation and report the preferences for additional airline services of 811 Swiss air travellers using an adaptive choice‐based conjoint survey. We find that 20% of those passengers who are interested in purchasing supplementary services show a considerable WTP for green products. The green segment differs from the regular segment only in terms of behavioural features, not in terms of demographic or socio‐economic characteristics. Copyright © 2015 John Wiley & Sons, Ltd and ERP Environment  相似文献   
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