Life satisfaction and family strengths of older couples

The purpose of this study was to examine the relation between family interaction quality of married elderly and their offspring and life satisfaction of older persons. Information was obtained by means of mailed questionnaires completed by both spouses of 68 married, retired couples living in Georgia and North Carolina who were identified through churches, senior centers, and congregate housing units and through personal contacts. For the total sample, health status was the strongest predictor of life satisfaction followed by certain family strengths factors and job prestige, respectively. Males and females differed concerning which variables contributed most to explaining variance in life satisfaction. Variance in life satisfaction of males was best explained by job prestige, family strengths, and financial help given. Variance in life satisfaction of women was best explained by their perception of their health, family strengths, and job prestige.     

Risk premiums in asset prices and returns

We review recent research on time-varying risk premiums, including attempts to explain rejections by baillie and others of the unbiasedness hypothesis. Using spot and forward foreign exchange rates we discuss the evidence for time-varying risk premiums, relate it to general equilibrium theories of asset pricing, and describe the artificial economy methodology.     

Discount rates and risky sexual behaviors among teenagers and young adults

This article examines the relationship between personal discount rates and sexual behaviors in a sample of teenagers and young adults. We find that higher discount rates (an indication of less willingness to forego current consumption for future consumption) are significantly associated with a range of sexual behaviors, including ever having sex, having sex before age 16 years, and past or current pregnancy. These associations are consistent with previous studies showing a link between discounting and other, non-sexual health behaviors. JEL Classification D80 · D90 · I10     

Confronting Sexual Stigma and Prejudice: Theory and Practice

This article explores theoretical and applied questions that are relevant to social scientists' efforts to understand and confront sexual stigma. A framework is presented for conceptualizing such stigma as a cultural phenomenon with structural and individual manifestations. The latter include enacted stigma and felt stigma, as well as internalized stigma, which encompasses self-stigma among sexual minorities and sexual prejudice among heterosexuals. Insights suggested by the model for reducing sexual prejudice are discussed. At the structural level, the framework highlights processes whereby heterosexism legitimates and perpetuates sexual stigma and the power differentials that it creates. Social and behavioral scientists, roles in working to eliminate heterosexism are discussed, and psychologists' contributions to court cases challenging state sodomy laws are described. It is argued that confronting sexual stigma will not only address an important social problem but will also enrich scientific understanding of human behavior.     

Individual Participation in Collective Action in the Context of a Caribbean Island State: Testing the Effects of Multiple Dimensions of Social Capital

This article presents the findings of a case study examining the relationship between social capital and individual participation in collective action on a Caribbean island recovering from devastation inflicted by Hurricanes Ivan and Emily. Using data drawn from 114 residential surveys on the island of Carriacou, Grenada, over the summer of 2006, we empirically test social capital as a predictor of individual participation in both formal and informal civic events. In addition, we further the theoretical development of the concept of social capital by independently testing the relationships between its multiple dimensions, specifically social networks; interpersonal trust; and norms of reciprocity. We find that associational membership and age are the two strongest predictors, while interpersonal trust, gender, and marital status are also significant. Our path analysis reveals that there is not a significant direct effect between associational membership and interpersonal trust, suggesting that the two dimensions may have independent, yet complementary, influences. This study sheds light on factors influencing citizen participation in “civic” forms of collective action in a developing region of the world, while demonstrating the multidimensional nature of social capital.     

The Importance of Ownership Arrangements in U.S. Agriculture1

Abstract According to a number of observers of the U.S. economy, large publicly traded corporations can be viewed as a social problem primarily because of their association with the concentration of wealth and power. In agriculture, nine states have laws which restrict or proscribe public corporations from engaging in farming. Also, groups and individuals have attempted to preserve non-corporate production enterprises in agriculture through the establishment of direct markets such as farmers' markets. Proponents of such efforts believe public corporations have negative economic impacts; opponents of such efforts, especially efforts to establish and retain anti-corporate farming laws, argue that corporations can provide economic benefits to rural areas. These debates beg the question of whether ownership and direct marketing arrangements have important influences on economic outcomes such as levels of cash returns from farming and increases in the number of farms realizing cash gains. Using multi-year, county-level data from the Census of Agriculture, this study finds that, even when holding a number of important variables constant, ownership arrangements, as well as the (interaction between the percentage of total sales which are direct sales and the percentage of farms selling directly, are important determinants of both net cash returns and the percentage of farms realizing cash gains.     

Improving Cancer Dose–Response Characterization by Using Physiologically Based Pharmacokinetic Modeling: An Analysis of Pooled Data for Acrylonitrile-Induced Brain Tumors to Assess Cancer Potency in the Rat

Historically, U.S. regulators have derived cancer slope factors by using applied dose and tumor response data from a single key bioassay or by averaging the cancer slope factors of several key bioassays. Recent changes in U.S. Environmental Protection Agency (EPA) guidelines for cancer risk assessment have acknowledged the value of better use of mechanistic data and better dose–response characterization. However, agency guidelines may benefit from additional considerations presented in this paper. An exploratory study was conducted by using rat brain tumor data for acrylonitrile (AN) to investigate the use of physiologically based pharmacokinetic (PBPK) modeling along with pooling of dose–response data across routes of exposure as a means for improving carcinogen risk assessment methods. In this study, two contrasting assessments were conducted for AN-induced brain tumors in the rat on the basis of (1) the EPA's approach, the dose–response relationship was characterized by using administered dose/concentration for each of the key studies assessed individually; and (2) an analysis of the pooled data, the dose–response relationship was characterized by using PBPK-derived internal dose measures for a combined database of ten bioassays. The cancer potencies predicted for AN by the contrasting assessments are remarkably different (i.e., risk-specific doses differ by as much as two to four orders of magnitude), with the pooled data assessments yielding lower values. This result suggests that current carcinogen risk assessment practices overestimate AN cancer potency. This methodology should be equally applicable to other data-rich chemicals in identifying (1) a useful dose measure, (2) an appropriate dose–response model, (3) an acceptable point of departure, and (4) an appropriate method of extrapolation from the range of observation to the range of prediction when a chemical's mode of action remains uncertain.