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DAVID A. DUBOFSKY 《The Journal of Finance》1991,46(1):421-431
The post-split increase in daily returns volatility is less for AMEX stocks than for NYSE stocks. The exchange trading location is a significant factor in explaining the volatility shift even after stock price and firm size are considered. Furthermore, when measured on a weekly basis, there is no increase in AMEX stocks' returns volatility. These results suggest that measurement errors created by bid-ask spreads and the 1/8 effect, and also one or more of the elements that make the NYSE different from the AMEX, explain why the estimated volatility of daily stock returns increases after the ex split date. 相似文献
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In this paper, a neoclassical model of interindustry wage dispersion is derived and used to examine explicitly the fundamental role of microeconomic variables in determining relative wage movements. The empirical results demonstrate that the variance of labor quality and capital intensities across sectors are the primary determinants of the movement of the dispersion of relative wages within the manufacturing sector in the postwar period. Although the relative wage structure exhibits some response to unemployment, it is not sensitive to changes in inflation. The macro variables were also of limited quantitative importance in explaining changes in the relative wage structure. 相似文献
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We document that forced resignations of top managers are preceded by large and significant declines in operating performance and followed by large improvements in performance. However, forced resignations are rare and are due more often to external factors (e.g., blockholder pressure, takeover attempts, etc.) than to normal board monitoring. Following the management change, these firms significantly downsize their operations and are subject to a high rate of corporate control activity. Normal retirements are followed by small increases in operating income and are also subject to a slightly higher than normal incidence of postturnover corporate control activity. 相似文献
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J. DAVID CUMMINS 《The Journal of Finance》1988,43(4):823-839
Insurance guaranty funds have been adopted in all states to compensate policyholders for losses resulting from insurance company insolvencies. The guaranty funds charge flat premium rates, usually a percentage of premiums. Flat premiums can induce insurers to adopt high-risk strategies, a problem that can be avoided through the use of risk-based premiums. This article develops risk-based premium formulas for three cases: a) an ongoing insurer with stochastic assets and liabilities, b) an ongoing insurer also subject to jumps in liabilities (catastrophes), and c) a policy cohort, where claims eventually run off to zero. Premium estimates are provided and compared with actual guaranty fund assessment rates. 相似文献
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DETERMINISTIC, STOCHASTIC, AND SEGMENTED TRENDS IN AGGREGATE OUTPUT: A CROSS-COUNTRY ANALYSIS 总被引:3,自引:0,他引:3
This paper examines whether output per capita in 126 countriesis better described as trend or difference stationary, usingappropriate finite-sample critical values. Depending upon whetherone uses solely a test with a trend stationary null, or solelyone with a difference stationary null, very different conclusionsare obtained. This outcome suggests that it is useful to considerthe tests complementary, rather than competing. We find thatwhen a definite characterization of GDP can be made, it is verylikely to indicate a difference stationary process. However,the likelihood of making definite conclusions does vary positivelywith both income level and data quality. 相似文献
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