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正经济学家长久以来一直在用博弈论理解世界。如今,工程师和计算机科学家也正在用这个理论重新构思他们的工作。你和一同犯下重大抢劫案的同伙都被警察抓获了,并且被关进不同的房间进行审问。如果你们两个都对犯罪保持沉默,就会被以较轻的罪名判处一年徒刑。如果你们两个都坦白交代,就都会坐5年牢。但是,如果你 相似文献
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George Lan Maureen Gowing Fritz Rieger Sharon McMahon Norman King 《Business ethics (Oxford, England)》2010,19(2):183-198
This study uses the Schwartz Values Questionnaire and version 2 of the Defining Issues Test to investigate the values, value types (clusters of related values) and level of moral reasoning of a sample of 108 MBA students in a Canadian university. There are no statistically significant differences in the levels of moral reasoning attributed to gender. Male and female MBA students rank ‘family security’ and ‘healthy’ as their two most important values. For males, hedonism, achievement and self‐direction are the three most important value types, while for females they are benevolence, hedonism and security, respectively. There are statistically significant gender differences for the value types hedonism, achievement, stimulation and power. Overall, however, there are more similarities than differences between the male and the female students. Regression analysis indicates a statistically significant positive association between the postconventional level of moral reasoning as measured by P‐scores and the value‐type universalism. The findings provide further evidence that value types affect the postconventional level of moral reasoning. 相似文献
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This article uses longitudinal data from the Philippines toexamine whether the timing of malnutrition in early childhoodis a critical factor in determining subsequent cognitive development.Although some observers have argued that the first six monthsof life are the most critical in the sense that malnutritionduring that time period harms cognitive development more thanmalnutrition later in life, analysis of the Philippines datadoes not support this claim. To the contrary, the data suggestthat malnutrition in the second year of life may have a largernegative impact than malnutrition in the first year of life. 相似文献
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This study examines the relation between stock prices and accounting earnings and book values in six Asian countries: Indonesia, South Korea, Malaysia, the Philippines, Taiwan, and Thailand. The analysis is based on a residual earnings model that expresses the value of the firm in terms of book value and residual income. The model holds for any clean surplus accounting system. However, for finite time horizons, biased accounting may affect model estimates. The six countries examined in this study differ in faithfulness to clean surplus accounting as well as bias (conservatism). The study addresses two questions. First, are there systematic differences across countries in the value relevance of accounting, and are these differences related to accounting differences? Second, are there systematic differences in the incremental and relative information content of book value per share (BVPS) and abnormal (residual) earnings per share (REPS) across the countries, and are such differences related to accounting differences? We find differences across the six countries in the explanatory power of BVPS and REPS for firm values. Explanatory power for Taiwan and Malaysia is relatively low while that for Korea and the Philippines is relatively high. These differences are generally consistent with differences in accounting practice; however, since Korean accounting practice is strongly influenced by tax law, we did not expect the high association for Korea. Second, with respect to the incremental and relative explanatory power of BVPS and REPS, we find BVPS to have high explanatory power in the Philippines and Korea but little in Taiwan. In all six countries REPS has less explanatory power than BVPS in most years. Again, the evidence may be interpreted as suggesting accounting practice affects valuation (with Korea again as the exception). Finally, we provide evidence on the sensitivity of the timing of comparisons of stock prices and accounting values. We find that comparing prices at year-end (even though annual accounting information has not been released at that time), in general, provides the highest correlation between market and accounting numbers. 相似文献
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A new test for additive heteroscedasticity in the disturbances of the linear regression model is proposed. Power functions of various forms of the new test are compared empirically with those of currently favoured tests for a range of heteroscedastic models. The results highlight the power advantage of a test which is MP1 at a central point in the alternative hypothesis parameter space. The main conclusion is that the recommended version of the new test is generally more powerful than existing tests against medium and severe heteroscedasticity, whereas the King and Szroeter tests perform better against weak heteroscedasticity. 相似文献
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Hedge funds and financial stability: Regulating prime brokers will mitigate systemic risks 总被引:1,自引:0,他引:1
We review key characteristics of the hedge fund industry, and identify conditions under which this sector can pose a threat to financial stability. Direct regulation of hedge funds that increases transparency does not appear feasible, may create a moral-hazard problem, and may reduce market liquidity. Indirect regulation by prime brokers and market discipline by creditors, counterparties, and investors have been effective in limiting the risks from the hedge fund sector. To reduce systemic risks, more regulation of prime brokers is warranted to avoid competitive dynamics from undermining counterparty risk management practices. 相似文献