Symmetry extensions of “neutrality”

For n3 candidates, a system voting vector W ⁿ specifies the positional voting method assigned to each of the 2 ⁿ –(n+1) subsets of two or more candidates. While most system voting vectors need not admit any relationships among the election rankings; the ones that do are characterized here. The characterization is based on a particular geometric structure (an algebraic variety) that is described in detail and then used to define a partial ordering among system voting vectors. The impact of the partial ordering is that if W ⁿ ₁ W ⁿ ₂, then W ⁿ ₂ admits more kinds of (single profile) voting paradoxes than W ⁿ ₁. Therefore the partial ordering provides a powerful, computationally feasible way to compare system voting vectors. The basic ideas are illustrated with examples that completely describe the partial ordering for n=3 and n=4 candidates.This reearch was supported in part by NSF Grant IRI-9103180.     

Incompatibility of strategy-proofness and the Condorcet principle

For social choice rules that can select either one or two alternatives, strategy-proofness is incompatible with a weak Condorcet principle. Received: 8 July 1996 / Accepted: 9 June 1997     

Extension of the sexual abuse questionnaire to other abuse categories: the initial psychometric validation of the Binghamton Childhood Abuse Screen

Study I represents a follow-up to a recently published study dealing with the initial development of the Sexual Abuse Questionnaire (SAQ). The SAQwas designed to be used to identify individuals experiencing psychological distress resulting from a history of childhood sexual abuse. Using a new data set (N = 2,806), this study utilized item analyses, exploratory factor analyses, and Receiver Operating Characteristics Curves to replicate and expand upon the initial psychometric properties of the SAQ, and to examine the sensitivity of the SAQ to other abuse categories. Findings from Study I indicated that the SAQ was sensitive to other abuse categories and in need of revision. Study II, using a new data set (N = 1,454), provided the initial psychometric evaluation of the newly constructed Binghamton Childhood Abuse Screen (BCAS).     

The international migration of nurses in long-term care

This article describes five major factors that are affecting patterns of international migration among nurses who work in long-term care settings: DEMOGRAPHIC DRIVERS: The aging of the populations in developed countries and the low to negative growth in the working-age population will increase the demand for international workers to provide long-term care services. GENDER AND RACE: A dual labor market of long-term care workers, increasingly made up of women of color, is becoming internationalized by the employment of migrating nurses from developing countries. CREDENTIALING: The process of credentialing skilled workers creates barriers to entry for migrating nurses and leads to "decredentialing" where registered nurses work as licensed practical nurses or aides. COLONIAL HISTORY AND GEOGRAPHY: The colonial histories of many European countries and the United States have increased migration from former colonies in developing countries to former colonial powers. WORKER RECRUITMENT: Efforts to limit the recruitment of health care workers from some developing countries have had little effect on migration, in part because much of the recruitment comes through informal channels of family and friends.     

LIQUIDITY CONSTRAINTS WITH ENDOGENOUS INCOME

This article examines liquidity constraints within the household's intertemporal model with nonseparable consumption and leisure. The model includes wage income in the minimum wealth constraint. We derive an estimable equation for employed households that holds whether or not the family is credit constrained. The formulation enables direct testing for liquidity constraints. Empirical findings using the Panel Study of Income Dynamics strongly support the existence of debt constraints. Credit constrained households have significantly lower levels of consumption, disposable income, saving, and wage rates, a higher average propensity to consume, and smaller labor hours for the spouse but not the head. ( JEL D91, J22)     

Public Policy and the Displacement Effects of Casinos: A Case Study of Riverboat Gambling in Missouri

A critical issue in assessing the economic impact of casinos is whether gambling activity displaces consumer expenditure from conventional retail establishments. We test this hypothesis using industry-level, time series data for eleven counties in Missouri, a state that recently introduced riverboats. Our results are generally inconsistent with the displacement hypothesis. However, we do find evidence of substitution between gambling and other businesses in the entertainment and amusement sector. This conclusion lends credence to the view that gaming serves as a substitute for other forms of entertainment. Our results also imply that the search for displacement should probably be focused on activities that constitute the closest consumer substitutes. We conclude with a discussion of the policy implications for state regulation of this new source of revenue.