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61.
By comparing siblings attending the same school at different points in time, we investigate whether the effect of peer quality on long-term labor market outcomes varies with parental background. We find that exposure to better peers—who have higher mean parental education—increases lifetime earnings of disadvantaged students, coming from families with low parental education, but penalizes privileged students from better educated families. These results suggest that desegregation policies that allocate disadvantaged students to schools with better peers produce long-term benefits. We discuss mechanisms and show that human capital accumulation, ordinal rank and network effects contribute to explain our findings.  相似文献   
62.
This article presents methodology for identifying product categories that, if they were made the subjects of a specified state's export promotions, would hold promise for satisfying relevant needs of members of three key “stakeholder” groups regarding the outcomes of the governmentally sponsored export promotions: the World Trade Organization (WTO), managements of non-exporting, small- and- medium-sized (SME) manufacturing concerns, and governmental entities who are responsible for raising funds to support such promotions. Methodology is applied in the context of a state in the United States (North Carolina).

The methodology is then applied in the context of a state in the United States (North Carolina). The presentations of the results of the application of the methodology at each of the 2-, 4- and 6-digit HS-coded product category levels are in each case followed by discussions of implications of the results.  相似文献   
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Leading to Learn     
“You don't see to draw, you draw to see.” And then Fred said, “It's just the same for leadership, you don't learn to lead, you lead to learn.” The arts can teach us to stay with our senses and not know and in that way to provide a balance to the dominance of the analytic approaches to our organizational worlds. There is an old saying that you can only manage what you can measure. The arts can help us to work with what we cannot measure and the way to do that is by leading to learn. The current article explores the qualitatively different way in which the arts teach us to apprehend the world and how that is central to leadership.  相似文献   
65.
The Sarbanes–Oxley Act of 2002 requires audit committees of public companies’ boards of directors to install an anonymous reporting channel to assist in deterring and detecting accounting fraud and control weaknesses. While it is generally accepted that the availability of such a reporting channel may reduce the reporting cost of the observer of a questionable act, there is concern that the addition of such a channel may decrease the overall effectiveness compared to a system employing only non-anonymous reporting options. The rationale underlying this concern involves the would-be reporter’s likelihood of reporting, the seriousness with which the organization treats an anonymous report, and the organization’s ability to thoroughly follow-up the report. Thus, we explore the extent to which the availability of an anonymous reporting channel influences intended use of non-anonymous reporting channels. Further, in response to Sarbanes–Oxley and the environment of financial scandals that led to its passage, many firms are strengthening their internal audit departments, and providing them with greater independence from upper management’s direct control. Accordingly, our examination tests whether the intended use of the internal audit department as an internal reporting channel is greater when the internal audit department is of “high” versus “low” quality. Finally, the study investigates intended reporting behavior across three different cases (e.g., settings). Results show that the existence of an anonymous channel does reduce the likelihood of reporting to non-anonymous channels, that generally the internal audit department quality does not affect reporting to non-anonymous channels, and that case-setting affects the type of channel to be used. Implications from the study are discussed.  相似文献   
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This article describes some of the work of Antitrust Division economists over the past year, with a focus on modeling. It begins by illustrating the mapping from evidence to prediction using tools for assessing the effects of mergers using Bertrand, Cournot, and auction models. It then turns to two hot topics in competition policy: the implications of claims of increasing margins for merger enforcement and the validity of claims of increasing concentration. Finally, it considers how mergers affect prices in bargaining models.  相似文献   
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Input price variability is an important source of risk for corporations that process raw commodities. Models of optimal input hedging are developed in this paper based on the maximization of managerial expected utility. The relationship between hedging strategies and output decisions is examined to assess the impact of the ability to set output prices on futures market participation. As a firm's ability to set output prices diminishes in the short run, input futures positions increase although the optimal hedge ratio may either increase or decrease. For a perfectly competitive firm, however, shifts in output price caused by input price changes provide a natural cash market hedge of input price risk and reduce the firm's optimal input futures position.  相似文献   
70.
近年来,世界各国民主化的趋势使得学者们必须面对两个具有潜在矛盾的目标:其一是建立一个能涵盖各个国家不同经验、具有多样性的民主概念;其二是在不扩大概念的基础上扩大对这一大类案例的分析。本文认为这种双重挑战导致了概念创新的加速,产生了几百种民主的亚类型———也就是“带形容词”的民主。本文对出现的三种重要创新类型的优势和弱点进行了探讨,这三种类型是:对民主定义的“精确化”;对与民主相关联的大概念进行转化;以及建立不同的亚类型。鉴于这些重新定义民主概念的策略所产生的含义具有复杂的结构,我们显得老生常谈式的结论其实具有新的紧迫含义:学者们必须通过对他们所使用的民主概念进行清楚的定义和说明来为自己的研究定位。  相似文献   
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