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61.
In the homogeneous case of one-dimensional objects, we show that any relation that is positive and homothetic can be represented
by a ratio-scale and a unique and constant biasing factor. This factor may favor or disfavor the preference for an object
over another. In the first case, preferences are complete but not transitive and an object may be preferred even when its
value is lower. In the second case, preferences are asymmetric and transitive but not negatively transitive and it may not
be sufficient for an object to have a greater value to be preferred. In this manner, the biasing factor reflects the extent
to which preferences may depart from a maximization process. 相似文献
62.
Scoring rules on dichotomous preferences 总被引:1,自引:0,他引:1
Marc Vorsatz 《Social Choice and Welfare》2008,31(1):151-162
In this paper, we study individual incentives to report preferences truthfully for the special case when individuals have
dichotomous preferences on the set of alternatives and preferences are aggregated in form of scoring rules. In particular,
we show that (a) the Borda Count coincides with Approval Voting, (b) the Borda Count is the only strategy-proof scoring rule,
and (c) if the size of the electorate is greater than three, then the dichotomous preference domain is the unique maximal
rich domain under which the Borda Count is strategy-proof.
I thank Jordi Massó for his supervision and his never-ending encouragement. Miguel-ángel Ballester showed me how to improve
on earlier drafts of the paper. Salvador Barberà, Carmen Bevía, Bhaskar Dutta, Lars Ehlers, Alejandro Neme, Shmuel Nitzan
and Yves Sprumont helped me a lot with their comments. All remaining errors are mine. This research was undertaken with support
from the fellowship 2001FI 00451 of the Generalitat de Catalunya and from the research grant BEC2002-02130 of the Ministerio
de Ciencia y Tecnología of Spain while I have been a graduate student at Universitat Autònoma de Barcelona. 相似文献
63.
64.
This paper studies a deviant social position within a small group of Italian Fishermen. The role of “court-jester” emerges and, as the title suggests, the relation between this role and the inherent properties of the deviant are explored. It is argued that the emergence of roles among deviant social positions is dependent upon the personal attributes of the deviant and the characteristics of his relations to other members of the group. 相似文献
65.
Marc Moore 《Revue canadienne de statistique》1987,15(3):185-207
The study of statistical inference for stochastic processes has evolved along two paths. Some problems related to particular processes have been studied, and also some trials to extend general results obtained for independent identically distributed random variables have been made. We retrace the first main contributions, evaluate their influence, and give an idea of the evolution of the research in the field of statistical inference made with observations coming from a stochastic process. 相似文献
66.
67.
68.
This article reflects on the role of sociological concepts and of sociologists in a series of national surveys that have proved
important to national health policy in financing and access to health care. The development of the early surveys in a university
setting and their migration to the government is discussed, as is the relative influence of sociologists and economists. The
changing focus of health policy from access to care through expanded government programs, to cost containment and utilization
control, provides an important context for understanding these developments. Areas are identified where sociologists can make
significant contributions to health policy in financing and access to care.
She received her PhD in Sociology from the University of Chicago. She spent six years as a Senior Sociologist at NCHSR working
on all aspects of the NMCES, and three years as an analyst in the Office of Research at the Health Care Financing Administration.
He received his PhD in Sociology from New York University. He joined NCHSR to conduct analyses of the NMCES data and has had
major responsibilities in the design of NMES. 相似文献
69.
Combining New Institutionalisms: Explaining Institutional Change in American Property Insurance 总被引:1,自引:0,他引:1
This article combines institutionalisms to explain fundamental change in American property insurance. During the 1950s, the industry shifted from associations to price-competitive markets and vertically integrated firms. I advance two new arguments to explain this shift: First, institutions endogenously generate conditions for change. Second, fundamental change or institutional replacement depends on a dynamic convergence of conditions—market failures, legitimacy crises, new models of order—and the culmination of this dynamic in politics and policies that admit alternatives into fields. Together, these arguments reduce indeterminacies in existing theories of change and shed new light on punctuated equilibria and the politics of transformation. 相似文献
70.
Shah KR Eisen SA Xian H Potenza MN 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2005,21(2):179-203
Twin studies represent an important and powerful approach to estimating the relative contributions of environmental and genetic factors to the expression of psychiatric illnesses. In this article, we first explain the rationale for using large populations of monozygotic and dizygotic twin pairs to estimate genetic and environmental contributions to a disorder and the statistical modeling associated with this approach. We then review results from studies of the Vietnam Era Twin Registry that use this methodology to examine the etiology of pathological gambling (PG) behaviors. The results provide strong evidence for genetic contributions to the development of PG in men and set the foundation for future studies aimed at identifying the manner in which specific genes and environmental factors individually and in conjunction contribute to PG. 相似文献