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441.
This article develops and evaluates a method for deriving postcensal estimates of household income distributions for counties. A modified lognormal probability curve is used as a model of income distribution. The function is closely related to the classical lognormal model, but it contains a nonlinear component in its derivation. Simulated postcensal estimates of household income distributions are compared with 1980 census data for the counties in California. The results indicate that the modified lognormal curve approximates observed income distributions well and produces reliable postcensal estimates for areas with a wide variety of median income levels and numbers of households. 相似文献
442.
The important relationship between fertility rates and economic development has prompted many researchers to try and better understand the determinants of family size. It has repeatedly been shown that the costs of children, both direct and indirect, are one of the most important determinants of fertility, exerting a significantly negative effect on birth rates in both developed and developing countries. Many studies which investigate the relationship between the costs of children and family size have assumed that these costs do not vary with parity. However, there is substantial evidence that the marginal costs of children are not constant but decrease with birth order in developed countries. In this paper, the hypothesis that there are diminishing marginal time costs of children is tested using household data from the developing country setting of the Philippines. By examining the determinants of additional time spent in childcare before and after the birth of a child, it is found that the marginal time costs are not the same across households of various sizes. Firstborn children cost significantly more in terms of additional mother's time than children of higher birth orders. In addition, the time costs of the second child are found to be significantly greater than those of the third child. However, these economies of scale in childcare are limited and do not extend beyond three children. The effect of birth spacing on the marginal time costs of children is also found to be significant. 相似文献
443.
444.
Symonds J 《Journal of psychosocial nursing and mental health services》2004,42(12):8; author reply 8, 11
445.
Two distinct regimes, contractions and expansions, are generated in a model in which goods markets clear and all individuals are optimizing, strict wage and price takers, have fully rational expectations, and are heterogeneous in both preferences and resource endowments. Involuntary unemployment, asymmetric monetary policy effectiveness, and a changing relationship between real wages and employment over the business cycle are the result of optimizing behavior by monopsonistic, wage-setting, and price-taking firms faced with price uncertainty, an upward-sloped supply of employees, and efficiency wage behavior. Disequilibrium and involuntary unemployment can occur at the level of the individual firm's labor market. 相似文献
446.
Jeff May 《Social Identities》2013,19(5):489-505
This chapter is a discussion of the various ways Canadian-born young men of colour (aged 17–26) experience (in)visibilities in the public spaces of the Greater Toronto Area (GTA). I begin this chapter by analyzing the different ways ‘visibility’ and ‘invisibility’ have been conceptualized in the scholarly literature, including literatures on homelessness, public space, and race. Invisibilities include ‘invisible homelessness’ as well as material invisibilities in which young men of colour both purposefully and accidentally navigate public spaces in ways that affect whether they are seen or unseen and by whom. This research emphasizes the contingency and indeterminacy of varying (in)visibilities. Despite the various ways they move between visibility and invisibility in public spaces, young men of colour experiencing homelessness maintain an explicit presence in urban street spaces. Understanding their experiences of (in)visibility in urban space helps us understand the geographies of race and racism in the GTA and in North American cities more broadly. 相似文献
447.
448.
This investigation examined reasons for (un)faithfulness. Driven by interdependence theory, data from 220 undergraduates at a southwestern U.S. university indicate that men have more relational alternatives than women and individuals’ relational investments tied to relational stage as well as length of relationship. Significant predictors of infidelity among men and women are quality of alternatives, believing that sex occurs early in a relationship, and having been cheated on (applied to men only). Quality of alternatives predicted cheating among seriously dating individuals, whereas marrieds reported the strongest predictor of cheating as being cheated on. Fear of sanctions related to cheating but not to commitment. Legal sanctions motivated monogamy for men but not women. Participants reported over 500 reasons to remain faithful and over 1,000 reasons to cheat. 相似文献
449.
Carolyn M. Holmes 《Social Work Education》2013,32(7):695-709
The General Social Care Council (GSCC) Post Qualifying Practice Teaching Award requires candidates to access and evaluate research as well as local and national polices. However there can be resistance from social workers to accessing and using research despite the recent emphasis on evidence based practice. The author used Curriculum Action Research, whilst undertaking the Post Graduate Certificate in Teaching in Higher Education, as a tool to make manageable changes to her teaching practice, by routinely introducing secondary research articles in every teaching session. This approach encouraged the candidates' learning and enabled their completion of their research assignment on their chosen topic, whilst also supporting or challenging their existing attitudes to the role of research in social work practice. 相似文献
450.
Christian M. End Michael C. Davis Jeff M. Kretschmar Jamonn Campbell David G. Mueller Shaye S. Worthman 《Sociological spectrum》2013,33(5):649-658
The current investigation attempted to replicate and extend Nelson and Weschler's (2003) research that indicated that college student sport fans were more likely to report problematic alcohol usage and more negative alcohol-related experiences in comparison to nonfans. In addition to utilizing the original study's operational definition of fan (spectator-based), 323 college students were categorized according to more traditional measures of fandom, specifically levels of fan and team identification. Contrary to the previous research, the results indicated that fans' and nonfans' alcohol usage and experiences of negative alcohol-related events were not significantly different. Additionally, both forms of identification (fan and team) failed to predict problematic alcohol usage and negative alcohol-related experiences. Although the results were unaffected by the operational definitions of fan, distinguishing certain subgroups of fans may be important in regards to clarifying and advancing our understanding of the potential relationship between sport and alcohol usage. These distinctions could guide efforts to reduce problematic alcohol usage. 相似文献