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排序方式: 共有80条查询结果,搜索用时 156 毫秒
1.
This article estimates economies of scale for a sample of five cellular telephony firms in the United States. We reject constant returns to scale for all but the smallest firm studied; the remaining firms exhibit decreasing returns to scale. This finding suggests that scale economies cannot be used to justify the current regulated duopoly structure of United States cellular markets. 相似文献
2.
Using a sample of S & P 500 firms, we find that golden parachutes are associated with concentrated external ownership, less
concentrated internal ownership, and non-Delaware incorporation. We find little support that concentrated external owners
use golden parachutes as credible commitment devices. The general multivariate results support the incentive alignment hypothesis,
and reaffirm the view that golden parachutes are a mechanism used to align managerial and shareholder interests when there
is a separation between ownership and control. (JEL G32) 相似文献
3.
Benchmark models that exogenously specify equity dynamics cannot explain the large spread in prices between put options written on individual banks and options written on the bank index during the financial crisis. However, theory requires that asset dynamics be specified exogenously and that endogenously determined equity dynamics exhibit a “leverage effect” that increases put prices by fattening the left tail of the distribution. The leverage effect is larger for puts on individual stocks than for puts on the index, thus increasing the basket-index spread. Time-series and cross-sectional variation in the leverage effect explains option prices well. 相似文献
4.
Michael L. Dekay Mitchell J. Small Paul S. Fischbeck R. Scott Farrow Alison Cullen Joseph B. Kadane 《Journal of Risk Research》2013,16(4):391-417
A decision-analytic model for avoiding a risky activity is presented. The model considers the benefit and cost of avoiding the activity, the probability that the activity is unsafe, and scientific tests or studies that could be conducted to revise the probability that the activity is unsafe. For a single decision maker, thresholds are identified for his or her current subjective probability that the activity is unsafe. These thresholds indicate whether the preferred course of action is avoiding the activity without further study, engaging in the activity without further study, or conducting a test or research programme to obtain additional information and following the result. When these thresholds are low, precautionary action is more likely to be warranted. When there are multiple stakeholders, differences in their perceptions of the benefit and cost of avoidance and differences in their perceptions of the accuracy of the additional information provided by the test or research programme combine to create differences in their decision thresholds. Thus, the model allows for the rational expression of differences among parties in a way that highlights disagreements and possible paths to conflict resolution. The model is illustrated with an application to phytosanitary standards in international trade and examined in terms of recent empirical research on lay perceptions of risks, benefits, and trust. Further research is suggested to improve the elicitation of model components, as a way of fostering the legitimate application of risk-based decision analysis in precautionary policy making. 相似文献
5.
Francis Tsiboe Bruce L. Dixon Lawton L. Nalley Jennie S. Popp Jeff Luckstead 《Agricultural Economics》2016,47(3):329-339
This study measures the economic impact of the first phase of the Cocoa Livelihood Program (CLP‐I), a current World Cocoa Foundation (WCF) project, sponsored by the Bill and Melinda Gates Foundation and aimed at improving the livelihood of over 200,000 small cocoa producers in sub‐Saharan Africa via training, crop diversification, and farmer‐based organizations. Using data collected from 2,048 pre‐ and post‐CLP‐I interviews of cocoa producers in Ghana, Cote d'Ivoire, Nigeria, and Cameroon, the results show that yield enhancements attributable to CLP‐I are 32%, 34%, 50%, and 62% in Ghana, Côte d'Ivoire, Nigeria, and Cameroon, respectively. Using a total program cost of $151–$200 per beneficiary and estimated annual benefits of $109–$322 per beneficiary over 25 years, the benefit‐cost ratios are estimated to range from $18 to $62 for every dollar spent on human capital development. These results suggest the WCF should endeavor to increase the number of farmers who receive all, not some, of the components of the program. This would not only help ensure that each producer obtains as much human capital as possible from each of the training programs but increases the probability of reaching the CLP goal of doubling the income of cocoa‐growing households. 相似文献
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8.
Kenneth A. Small 《Journal of urban economics》1986,19(3)
Conventional theory predicts that transportation cost to a big-city central business district is an important determinant of housing prices. If this is true, the sudden rise in gasoline price following the Iranian revolution in 1979 could have caused a relative housing-price shift in central and peripheral neighborhoods. This paper looks for such an effect by fitting hedonic price functions in selected neighborhoods at varying distances from downtown Philadelphia, and testing for a relative shift at the time of the gasoline shortage. The results suggest that the energy shortage's effects may have been focused disproportionately on a few already revitalizing neighborhoods. 相似文献
9.
Ingmar Björkman Mats Ehrnrooth Kristiina Mäkelä Adam Smale Jennie Sumelius 《人力资源管理》2013,52(2):195-214
In this article, we examine the effect of talent identification on employee attitudes. Building on social exchange theory, we analyze the association between employees' perceptions about whether or not they have been formally identified as “talent” and the following attitudinal outcomes: commitment to increasing performance demands, building skills, and supporting strategic priorities; identification with the unit and the multinational enterprise; and turnover intentions. Our analyses of 769 managers and professionals in nine Nordic multinational corporations reveal a number of differences between employees who perceive that they have been identified as “talent” and those who either perceive that they have not been identified or do not know whether they have been identified. We found only limited differences between the two latter categories. 相似文献
10.
M. Jane Barr Sweeney John J. Siegfried Jennie E. Raymond James T. Wilkinson 《The Journal of economic education》2013,44(4):68-75
The authors examine class size, teaching methods, and the one-semester/two-semester organization of the first course in economics, where colleges and universities are classified into five broad categories, from liberal arts colleges to research institutions. Student satisfaction with respect to their institution is also reported. 相似文献