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151.
This article develops a framework to examine the ex ante benefits of transgenic research on drought in eight low-income countries, including the benefits to producers and consumers from farm income stabilization and the potential magnitude of private sector profits from intellectual property rights (IPRs). The framework employs country-specific agroecological–drought risk zones and considers both yield increases and yield variance reductions when estimating producer and consumer benefits from research. Benefits from yield variance reductions are shown to be an important component of aggregate drought research benefits, representing 40% of total benefits across the eight countries. Further, estimated annual benefits of US$178 million to the private sector suggest that significant incentives exist for participation in transgenic drought tolerance research.  相似文献   
152.
We provide evidence of rational reference-dependent preferences in the proprietary trading of professional traders. We find increased trading effort and risk taking by traders following morning losses. Further analysis provides no evidence of a deterioration in trading performance subsequent to losses, as neither risk-adjusted performance nor trade execution appear to be negatively affected by prior losses. The evidence supports the existence of rational reference-dependent preferences in the form of trader daily income targets: these professional traders exhibit increased work effort subsequent to abnormal morning losses. The evidence is inconsistent with the alternative explanation of costly loss aversion.  相似文献   
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154.
With the implementation of the North American Free Trade Agreement (NAFTA) nearly complete, there are concerns that the easy gains in efficiency have been achieved and that additional steps towards the economic integration of the member countries are required. This poses a distinct challenge to the NAFTA governments, since the agreement did not create trinational institutions with the supranational authority to facilitate the deepening of the new trading environment. In any initiative to further the economic integration of the NAFTA countries, agriculture will be a difficult sector in which to make progress. However, at an aggregate level, the support provided directly to agricultural producers by the NAFTA governments is similar, as are tariffs at an aggregate level. All three countries have devised income support programmes that contain a countercyclical element. In each of these areas, as well as in the operation of ‘green box’ programmes that are consistent with the member countries’ obligations to the World Trade Organization, cooperation and consultation among the NAFTA members would seem crucial if they are to achieve greater integration in the agrifood sector. This article examines the opportunities and challenges facing the NAFTA members as they seek further integration in the agrifood sector.  相似文献   
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157.
We seek to quantify the success of Russia's attempt to achieve price-liberalization initiatives as part of the reforms established under the Big Bang of January 1992. We do so by studying the time-series behavior of commodity prices between 1992–1995 and focusing on the relationship between the behavior of prices of similar goods within and across cities. We supplement this analysis by examining city-level surveys that seek to quantify the extent to which firms are currently able to set and adjust commodity prices in accordance with market conditions. Our evidence suggests that price liberalization gradually gained momentum following the Big Bang and that prices generally reflected market conditions by the first quarter of 1995. However, regional pockets of resistance to price-reform efforts continue to persist, indicating that Russia has yet to achieve full market integration.J. Comp. Econom.,December 1998, 26(4), pp. 735–760. University of Pittsburgh, Pittsburgh, Pennsylvania 15260.  相似文献   
158.
This paper discusses the advantage advertisers may enjoy over consumers in terms of R.D. Laing's Interpersonal Perception Method (Laing, Phillipson & Lee, 1966). It is suggested that the advertiser (A) has an advantage over the consumer (C) to the extent that (1) A operates more efficiently at higher order levels of perspective than does C; (2) A understands C, whereas C misunderstands A; (3) A causes C to feel understood by A; and (4) A realizes that he understands C, whereas C fails to realize that she misunderstands A. The differential orientations and skills of A and C would appear to support these conditions with some frequency.  相似文献   
159.
This article disputes the argument and the evidence used to conclude that white workers are hurt by discrimination against blacks. Racism may increase the bargaining power of white workers if it unifies white ethnics, and may benefit them if it reduces job competition. The distributional consequences of discrimination will vary with the intensity of aggregate unemployment and the degree of racial segmentation in the labor market. The impact of racial inequality on the probability of employment is evaluated with a cross-sectional model using census summary data on SMSAs. Results show that racial inequality improves white male and female employment prospects in 1980, and suggest the same for 1970.  相似文献   
160.
This study investigates the relationship between the value relevance of earnings and earnings quality across countries. We find that there is a stronger relationship between earnings quality and the value relevance of earnings in countries with high investor protection than in countries with weak investor protection. We also find that the association between the value relevance of earnings and earnings quality is higher when a country’s information environment is less opaque. Overall, our study documents evidence on international differences in the ability of stock prices to capture useful accounting information, consistent with the notion that the returns-earnings association reflects not only the quality of accounting earnings but also the informativeness of stock prices.  相似文献   
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