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51.
This is a first study about labor discrimination against Afro‐descendants in Peru. We randomly assigned Afro‐Peruvian and white surnames and photographs (subjectively beautiful, homely looking, or not photos) to 3,828 fictitious résumés, sent for unskilled, technical, and professional occupations. We find an unprecedented, sizeable beauty premium in unskilled occupations (232.5 percent), no effect of looks in technical occupations, and a beauty penalty in professional occupations (–71.3 percent). Overall, whites receive 19.37 percent more callbacks than similarly qualified Afro‐Peruvians; this racial discrimination affects only Afro‐Peruvian females, and particularly those employed in technical occupations. These results remain unaltered when we restrict the sample to those markedly “Afro” surnames. Our findings unveil different dynamics of discrimination across job categories, which tend to be overlooked by the existing literature. 相似文献
52.
We construct a transition analysis based on a general equilibrium life‐cycle model to investigate the effects of aging, and we evaluate various policy alternatives designed to lessen the negative influence of aging. In particular, we analyze reforms of insurance benefits and tax financing tools that were recently the focus of a great amount of attention and debate in Japan because of the tense financial situation there. We show that although the potential reforms improve the welfare of future generations, the political implementation of such reforms is difficult because of the large welfare costs for the current population. Our analysis suggests that a gradual reform with an intergenerational redistribution will be more politically implementable than an immediate reform. 相似文献
53.
Using an unbalanced panel of 539 Vietnamese districts from 2000 to 2010 and the corresponding politicians’ profiles, we examine firm behaviour in response to favouritism by top-ranking politicians towards their districts of birth. Results show that the number of firms tend to increase in the home districts of politicians after they assume office. This favouritism is particularly pronounced for private domestic firms, construction firms and rural areas. However, state-owned firms are indifferent. We discuss the non-response of state-owned firms, potential mechanisms and channels behind the statistical results. 相似文献
54.
We extend a second‐generation Schumpeterian growth model to incorporate human capital accumulation to clarify the general equilibrium effects of subsidy policies on human capital accumulation and R&D activities in a unified framework. Despite the conventional argument that subsidies always stimulate these growth‐promoting activities, we find that subsidies asymmetrically affect human capital accumulation and R&D activities. Our theoretical results suggest that research using standard models of human capital might find false negative relationships between education subsidies and economic growth. 相似文献
55.
Underpinned by the framework of the theory of planned behavior, this study uncovered the beliefs that could influence individuals' behavior of visiting a museum. Interviews and questionnaires were conducted with visitors at the Indiana State Museum to elicit a range of their behavioral, normative, and perceived behavioral control beliefs with respect to visiting the museum and to determine the strength and importance of the salient beliefs. The findings suggest a consideration of the positive outcomes of visiting the museum—such as learning and socialization, and family members' norm in the design of a persuasive communication intervention. 相似文献
56.
The purpose of this paper is to demonstrate the powerful and flexible applicability of the Gram–Charlier expansion to pricing of a wide variety of interest rate related products involving interest rate risk and credit risk. In this paper, we develop easily implemented approximations of the prices of several derivatives; swaptions, CMS, CMS options, and vulnerable options. Associated with the default risk, a survival contingent forward measure is constructed. 相似文献
57.
This paper shows that the degree of information asymmetry is lower for firms with more frequent news releases. The relation holds for various measures of information asymmetry such as the probability of information-based trading (PIN), permanent price impact, and adverse selection component of bid-ask spread, even after adjusting for endogeneity between news release and information asymmetry. By decomposing the PIN into intensities of uninformed and informed trades, similarly to Brown and Hillegeist (2007), we find that intensity of uninformed trading increases much more than that of informed trading for firms with more frequent news releases. As a result, information asymmetry, as is measured by PIN, decreases for such firms due to the large increase in the intensity of uninformed trading. Our findings highlight not only the importance of news releases in leveling the playing field of investors but also the role of uninformed investors in reducing trading cost due to information asymmetry. 相似文献
58.
59.
Supersaturated design is a form of fractional factorial design in which the number of columns is greater than the number of experimental runs. Construction methods of supersaturated design have been mainly focused on two levels cases. Much practical experience, however, indicates that two-level may sometimes be inadequate. This paper proposed a construction method of mixed-level supersaturated designs consisting of two-level and three-level columns. The χ2 statistic is used for a measure of dependency of the design columns. The dependency properties for the newly constructed designs are derived and discussed. It is shown that these new designs have low dependencies and thus can be useful for practical uses. 相似文献
60.
Optimal Hedging of Prediction Errors Using Prediction Errors 总被引:1,自引:1,他引:0
Yuji Yamada 《Asia-Pacific Financial Markets》2008,15(1):67-95
Wind power energy has been paid much attention recently for various reasons, and the production of electricity with wind energy
has been increasing rapidly for a few decades. One of the most difficult issues for using wind power in practice is that the
power output largely depends on the wind condition, and as a result, the future output may be volatile or uncertain. Therefore,
the prediction of power output in the future is considered important and is key to electric power generating industries making
the wind power electricity market work properly. However, the use of predictions may cause other problems due to “prediction
errors.” In this work, we will propose a new type of weather derivatives based on the prediction errors for wind speeds, and
estimate their hedge effect on wind power energy businesses. At first, we will investigate the correlation of prediction errors
between the power output and the wind speed in a Japanese wind farm, which is a collection of wind turbines that generate
electricity in the same location. Then we will develop a methodology that will optimally construct a wind derivative based
on the prediction errors using nonparametric regressions. A simultaneous optimization technique of the loss and payoff functions
for wind derivatives is demonstrated based on the empirical data. 相似文献