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This paper proposes an explanation for several decades of rising U.S. nonmarital birth rates and shares, and for cross‐sectional differences in black‐white fertility. Significantly, the explanation does not rely on changes over time or differences across races in individual fertility behavior. It is consistent with the rising nonmarital fertility measures observed in the United States since the mid‐1970s, higher measured fertility for unmarried blacks than whites, and differences across races in the timing of childbearing, despite nearly constant total fertility rates and increasingly similar target family sizes for blacks and whites. The explanation relies on a selection effect associated with changes in the marriage rate and on racial differences in access to human capital investment opportunities. We find strong support for the explanation using U.S. data over the period 1957–2002. Our findings suggest caution in interpreting the results of empirical studies of childbearing that examine marital and nonmarital fertility rates separately, as these studies typically ignore the selection effect of marriage. (JEL J12, J13, I38) 相似文献
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Under the standard economic model of torts, punitive damages correct for imperfect detection. Incorporating litigation costs into the model provides a justification for punitive damage caps. At the optimum, caps balance deterrence against the cost of litigation. Empirical testing of the model is performed via Cox proportional and parametric hazard analyses, using a panel dataset from 1981 to 2007. The results reveal a positive relationship between legal services employment (a proxy for legal costs) and cap enactment, and a negative relationship between state gross state product (a proxy for damages) and cap enactment. Cap enactment is also influenced by political ideology. (JEL K13, K41, L51) 相似文献
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This article presents reliable data on the life expectancy of the monks of Durham Priory between 1395 and 1529. The number of years that monks survived in this northern monastery plunged precipitously in the second half of the fifteenth century before staging a partial recovery in the early sixteenth. The experience of Durham monks mirrors the scale, direction, and timing of the data already produced for the monks of Canterbury and Westminster. While the precise relationship between monastic mortality and that of the population at large remains difficult to determine, there can be no doubt that the symmetry that has been established between mortality in three monasteries located in different parts of the country has important implications for our understanding of the demographic history of late medieval England. 相似文献
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BERNELL K. STONE 《The Journal of Finance》1983,38(2):373-385
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