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81.
Population Research and Policy Review - Administrative data from multiple sources are combined to measure pregnancy (excluding those ending in abortion or miscarriage) and high school dropout in a...  相似文献   
82.
Although HIV/AIDS definitely impacts gay and bisexual men of all ages, the impact on people in their later years has not been actively investigated. This exploratory study obtained detailed narratives from 14 adults between the ages of 51-72, all of whom were infected with HIV. Ten of the participants were potentially infected through male to male sexual contact. The subjects reported living with HIV for substantial periods with an average of 13 years of life since diagnosis, estimating a duration of HIV seropositivity from 1-20 years. Most had significant health problems, which may be related to aging, in addition to a number of HIV-related symptoms. They expressed community identification as people living with HIV; some were highly identified as gay men, while other were closeted or in denial regarding their same-sex activity. Half felt to some extent bisexual, and described relationships with wives or other women. Although many participants maintained active social lives, others expressed feelings of loneliness and isolation. This group was minimally active sexually and several of the participants expressed reservations about safer sex, especially condom usage. A strong theme was the sense of having lived a full life, which may help the individual cope with his diagnosis. The findings suggest the need to examine the diversity among older gay and bisexual men living with HIV, how these experiences vary by race and ethnicity, and identification of issues related to prevention and services.  相似文献   
83.
This paper explores the meaning and implications of the desire by workers for impact. We find that this impact motive can make a firm in a competitive labor market face an upward-sloping supply curve of labor, lead workers with the same characteristics but at different firms to earn different wages, may alleviate the hold-up problem in firm-specific investment, can make it profitable for an employer to give workers autonomy in effort or task choice, and can propagate shocks to unemployment.  相似文献   
84.
Let some individuals selected from a population form a subgroup. Let each individual name those individuals whom he considers to be the best members of his subgroup. Based on the number of times an individual was so named, we wish to find the probability that the individual is the best. second best, third best, etc., member of the population. This paper presents a method for the calculation of such probabilities. In so doing, it also offers a solution to the constant frame of reference problem in which individuals from different subgroups must be compared.  相似文献   
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In a courtship game, wasteful conspicuous spending may provide information about some components of a suitor’s income. But conspicuous spending may be costly not only for the potential husband but also for the woman: it reduces the wealth of the man she may marry. In the optimal contractual arrangement, the bride’s cost moderates the threshold value of the conspicuous spending that she requires for marriage. We also find that a sound observable financial background (‘old money’) benefits both the suitor and the woman, and reduces wasteful spending on status goods. Furthermore, we analyze how a change in the intensity with which the suitor seeks the woman may affect the equilibrium pattern of conspicuous spending.  相似文献   
88.
Objectives. The 1990s witnessed the growth and maturation of the Latino electorate in California and many scholars have posited as to the reasons. One argument is that naturalizations by way of the Immigration Reform and Control Act (IRCA) drove the increases in Latino participation. In this article we investigate the extent to which this is the case. Methods. Using unpublished INS data, we offer the first empirical test of the IRCA theory by examining Latino IRCA petitions by zipcode to determine whether or not IRCA legalizations and subsequent naturalizations were the force behind increased Latino turnout, and the overall growth of the Latino vote. We merge IRCA data with Registrar of Voter data to examine real growth in the Latino vote at the zipcode level from 1996–2000 in southern California. Results. Although Latino voting grew substantially, we find that IRCA naturalizations did not spur the increases in Latino voting in the 1990s as some have expected. Instead, demographic and mobilization variables explain why the Latino vote grew between 1996 and 2000. Conclusions. As Congress debates new proposals to “legalize” the millions of undocumented immigrants living and working in this country, many will inevitably ask what impact their citizenship will have on the electorate. This study sheds some light on the relationship between amnesty programs, citizenship, and voting among Latinos.  相似文献   
89.
We consider the problem of inference when sampling from a translation family with an improper prior. Properties of the formal Bayes inference will be studied. We give conditions (on the prior and/or the family) guaranteeing the HS-coherence (see Heath and Sudderth, Ann. Statist. 6 (1978), 333–345) of the formal Bayes posterior. Since HS-coherence is equivalent to being a posterior of a finitely additive prior, all coherence results imply the existence of a finitely additive prior which has the formal Bayes inference as a posterior.  相似文献   
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