The uncovered set in spatial voting games

In a majority rule voting game, the uncovered set is the set of alternatives each of which can defeat every other alternative in the space either directly or indirectly at one remove. Research has suggested that outcomes under most reasonable agenda processes (both sincere and sophisticated) will be confined to the uncovered set. Most research on the uncovered set has been done in the context of voting games with a finite number of alternatives and relatively little is known about the properties of the uncovered set in spatial voting games.We examine the geometry of the uncovered set in spatial voting games and the geometry of two important subsets of the uncovered set, the Banks set and the Schattschneider set. In particular, we find both general upper and lower limits on the size of the uncovered set, and we give the exact bounds of the uncovered set for situations with three voters. For situations with three voters, we show that the Banks set is identical to the uncovered set.     

The Role of Social Distrust in Risk-Benefit Analysis: A Study of the Siting of a Hazardous Waste Disposal Facility

Distrust of social institutions is becoming an important component of risk communication and policy analysis. To assess the impact of social distrust on decision making, we examine the role of distrust of information sources on the willingness to accept a hazardous waste disposal facility in one's neighborhood. Using a prospective-reference utility model, distrust of information sources is analyzed a possible influence on individual choice in a risk-benefit tradeoff. Using contingent valuation survey data on the siting of a hazardous waste disposal facility, we find that respondents are particularly distrustful of both governmental officials and waste disposal businesses. We find that social distrust increases the perceived risk of a facility and influences the likelihood of accepting a referendum to site a hazardous waste disposal facility. The level of compensation offered in the contingent valuation scenario also is found to influence a respondent's risk perception.     

The effects of motherhood timing on career path

This paper estimates the effects of motherhood timing on female career path, using biological fertility shocks to instrument for age at first birth. Motherhood delay leads to a substantial increase in earnings of 9% per year of delay, an increase in wages of 3%, and an increase in work hours of 6%. Supporting a human capital story, the advantage is largest for college-educated women and those in professional and managerial occupations. Panel estimation reveals both fixed wage penalties and lower returns to experience for mothers, suggesting that a “mommy track” is the source of the timing effect.     

Fitness and Fatness in Relation to Health: Implications for a Paradigm Shift

Health care professionals most often approach health promotion for large persons in the context that health improvement can be attained only through weight loss. Unequivocal acceptance of the notion that thinness equals health and fitness has been the only health intervention strategy available for many large men and women. The apparent ineffectiveness of traditional diet and exercise programming to reduce body weight has caused many health care providers, obesity researchers, and lay persons to challenge the further use of diet and exercise for the sole purpose of reducing body weight in the large person. A brief survey of the most popular dieting techniques used over the past 40 years shows that most techniques cycle in and out of popularity, and that many of these techniques are hazardous to health. Data from the scientific community indicate that diet and exercise programs for weight loss are ineffective in producing reduced weight maintenance after a period of 3 to 5 years. On the other hand, there are data indicating that overweight men and women can become healthy without losing significant amounts of weight. Furthermore, epidemiological studies indicate that fitness, not fatness, is related to disease and mortality. Any intervention strategy for the obese should be one that promotes the development of a healthy lifestyle. The outcome parameters used to evaluate the success of such an intervention should be specific to disease risk and symptomatologies and not limited to medically ambiguous variables like body weight or body composition.     

Research newsnotes

The authors describe the curricular changes made as part of a 20-year commitment by Smith College School for Social Work (SCSSW), a graduate school with a clinical social work specialization, to become an antiracism institution. Unaware of precedents, faculty, administration, and students needed to develop structures and processes to confront inherent institutional racism at the SCSSW. In addition to multiple administrative actions, every aspect of the curriculum was reevaluated, leading to changes in courses offered and everything about them, from syllabi to pedagogy, as well as how faculty are trained and supported. The authors found that explicit and implicit curriculum must work together in intentional and synchronous ways. Critical intention across design, implementation, evaluation, accountability, and openness to process is emphasized here. They conclude that an antiracism commitment requires continuous engagement, connection, challenge, learning, and teaching and a curriculum that is fluid, flexible, proactive, and responsive.