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121.
Monitoring the metropolitanization process 总被引:1,自引:0,他引:1
Alternative approaches have led to different interpretations of the metropolitanization process in the United States. We identify and illustrate several methods and procedures for monitoring metropolitan-nonmetropolitan population change using the 1950-1980 U.S. decennial censuses. Two basic approaches are compared: constant area approaches and component methods. In addition, we assess the effects of changing metropolitan definitions on metropolitan-nonmetropolitan growth. The results clearly reveal that the underlying mechanics of metropolitanization not only are complex but have changed substantially during the 1950-1980 period. We conclude with observations regarding the use of these procedures in future research. 相似文献
122.
Judah Rosenblatt D.L. Jackson W.P. Dole W.L. Thompson 《Journal of statistical planning and inference》1983,8(3):281-300
In this paper the accuracy of the normal approximation to the Poisson is treated from the viewpoint of direct approximation of Poisson variables by normal ones. The conclusions that are derived on the accuracy of this approximation lead (among others) to very useful results on confidence limits for the mean of a linear combination of independent Poisson variables; these latter are employed in precise determination of the composition of a mixture of radioactive isotopes by means of a scintillation counter. 相似文献
123.
Sounds of Silence: narrative research with inarticulate subjects 总被引:7,自引:5,他引:2
This article addresses the challenge of using narrative methods with people who have learning difficulties. Such informants present four particular interview problems: inarticulateness; unresponsiveness; a concrete frame of reference; and difficulties with the concept of time. The authors focus on the first two of these problems and argue that neither of them constitutes an insuperable barrier to people telling their story. Drawing on detailed interview material from an informant with learning difficulties, the authors set out to show in practical terms how these problems might be tackled, emphasising in particular the importance of being attentive to what goes unsaid. They conclude that researchers should put more emphasis on overcoming the barriers that impede the involvement of inarticulate subjects in narrative research instead of dwelling on their limitations as informants. 相似文献
124.
Sharon Jackson 《Journal of Population Research》1995,12(1):25-34
This paper applies a simple economic model to explain short run movements in Australian fertility, abstracting from social
and cultural conditions. It shows that Australian fertility can be modelled with some success using only wages and employment
data, once we allow for the different effects of changes in men’s and women’s wages for the period 1966–90. The elasticity
of the total fertility rate over this period is found to be negative with respect to women’s wages and positive with respect
to men’s wages. As well as having the expected sign, the estimated elasticities are similar in magnitude to those for the
United States over the period 1948–75. 相似文献
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127.
An Empirical Model of Managerial Careers in Organizations 总被引:1,自引:0,他引:1
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We provide an application of a variety of predicting densities to quality control involving multivariate normal linear models. We produce optimal control designs for single muleivaiiate future observations using predicting densities employing estimative, profile likelihood, Hinkley-Lauritzen, Butler, Bayesian, and Parametric Bootstrap methodologies. The decision-theoretic optimality criterion is an intuitively appealing quadratic consumer-producer risk function. The optimal control design arising from an optimal Kullback-Leibler frequentist prediction density is shown to coincide with that arising from an optimal Kullback-Leibler Bayesian predictive density. An example involving EVOP is provided to illustrate the methodology and to raise questions concerning the relative merics of the variety of predictive approaches in the quality control context. 相似文献