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We study men's adult mortality and longevity by socio-occupational status during industrialization in Saguenay-Lac-Saint-Jean, Quebec. Data were extracted from the BALSAC database (Université du Québec à Chicoutimi), which comprehensively traces the demographic history of the region since the beginning of the French Canadian settlement in 1840 up to the early 1970s. Using five occupational classes and controlling for year, age at marriage, urban/rural residence, and literacy, we found no evidence for the emergence of a socioeconomic gradient in mortality. At least until the early 1970s, mortality in the region is the lowest for farmers and appears to be driven by occupational risk rather than fundamental social causes.  相似文献   
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The Future of Telecommunications   总被引:1,自引:1,他引:0  
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This paper develops a non-linear differential-delay model of the Keynesian system. The non-linearities derive from a non-linear relationship between capacity utilization and profitability, interacting with the effect of profitability on rates of investment. Local stability properties are established analytically, and numerical techniques indicate the possibility of chaotic behavior for some configurations of parameters. The results suggest that profitability and growth can interact to produce some of the apparently stochastic components of growth cycles.  相似文献   
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We examine the effects of thin trading on the specification of event study tests. Simulations of upper and lower tail tests are reported with and without variance increases on the event date across levels of trading volume. The traditional standardized test is misspecified for thinly traded samples. If return variance is unlikely to increase, then Corrado's rank test provides the best specification and power. With variance increases, the rank test is misspecified. The Boehmer et al. standardized cross-sectional test (Event-study methodology under conditions of event-induced variance, Journal of Financial Economics 30, pp. 253–272) is properly specified, but not powerful, for upper-tailed tests. Lower-tailed alternative hypotheses can best be evaluated using the generalized sign test.  相似文献   
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There has been significant concern in auditing about the effects of relying on prior working papers in planning audit procedures (“anchoring”). This study employed an experiment with varying information sets: prior working papers, current year information and “scenario” (summarized prior year information). Practicing auditors were asked to design a substantive audit program for a case where changes in the client's environment dictated additional procedures. A consensus program from three partners was used as a bench-mark. Experimental groups were about equally adaptive to the changing environment. However, auditors provided with prior working papers demonstrated lower efficiency. The scenario group exhibited both high relative effectiveness and efficiency, while current information subjects displayed the lowest overall level of performance.  相似文献   
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To determine the various performance criteria concerning journalism it is reasonable to develop a broad concept, which integrates the different theoretical approaches. In a functional and system-oriented perspective, fundamental performance criteria can be based on the social function and the specific code of journalism, which emerged in an historical process of mutual observation of journalists and audiences. In a normative-democratic perspective, performance criteria can be derived from societal and human values codified in diverse regulations. However, in this regard it has to be taken into account that specific claims of the political subsystem also play an important role. Finally from an audience and action oriented viewpoint, it is important to keep in mind that journalistic communication must be useful and applicable in the world the audience lives in.  相似文献   
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