Monotonicity in Condorcet Jury Theorem

Consider a committee of experts dealing with dichotomous choice problem, where the correctness probabilities are all greater than We prove that, if a random subcommittee of odd size m is selected randomly, and entrusted to make a decision by majority vote, its probability of deciding correctly increases with m. This includes a result of Ben-Yashar and Paroush (2000), who proved that a random subcommittee of size m3 is preferable to a random single expert.Research supported in part by the Israel Science Foundation (Grant\#186/01)     

Jury theorems with multiple alternatives

I consider a game in which imperfectly informed jurors vote to select one of several possible choices when there is a natural ordering of the possibilities. Each juror votes for the largest alternative the juror would like to implement, and the alternative that is selected is the largest alternative supported by a given number of jurors. For non-unanimous voting rules, the probability of a mistaken judgment goes to zero as the number of jurors goes to infinity. I also give necessary and sufficient conditions to obtain asymptotic efficiency under unanimous voting rules, and show that unanimous rules may lead to a bias in which moderate outcomes are never chosen.     

The American commune and the American mythology

While the symbolic value of community has long been recognized, most of the attention to date has focussed on the symbolic content of the American small town, taken as representing the most fundamental and lasting values and characteristics of the American Way of Life (Vidich and Bensman, 1968, Caplowet al., 1982).Here it is argued that communities existing not in the cultural center but rather on the periphery also contain symbolic potency and are so interpreted by the dominant society. As is demonstrated by the case of the Amana Colonies, such communities represent the Other within. They present both the possibility of cultural alternatives and the ultimate victory of mainstream values and structures. The tension between history and myth, community and society, is then related to interpretation of other communal societies and their relationship to the dominant American society.For helpful comments on an earlier version, I would like to thank David Bouchier and Maren Lockwood Carden.     

The American Way

Media consolidation and convergence have increasingly changed the way individuals as both consumers and citizens access, process, and communicate information at the local, national, and global levels. Media industries and institutions influence public perception and occupy our time at work and at home more and more. Media literacy has become recognized as a twenty-first-century skill necessary for civic competence and the development of informed, responsible citizens. Although it has long been established in the curricula of other nations, it is relatively new in the United States. Media literacy is not simply teaching with media—rather, it entails teaching about media. Key frameworks such as the Text, Audience, and Production (TAP) model, which is explained in this article, can be used to help students systematically analyze and evaluate the wide range of media texts they are exposed to on a daily basis. The author discusses how media literacy is also compatible with several of the major strands identified by the National Council for the Social Studies and can be facilitated by the growing range of resources available to teachers.     

Monotonicity in Condorcet’s Jury Theorem with dependent voters

Condorcet’s Jury Theorem (CJT) provides a theoretical basis of public choice theory and political science. This paper provides an extension of CJT for random subcommittees consisting of dependent heterogeneous experts. Necessary and sufficient conditions for beneficial augmentation (reduction) of the size of a random subcommittee are provided. These results are applied in several dependency models.     

Extending the Condorcet Jury Theorem to a general dependent jury

We investigate necessary and sufficient conditions for the existence of Bayesian-Nash equilibria that satisfy the Condorcet Jury Theorem (CJT). In the Bayesian game G _n among n jurors, we allow for arbitrary distribution on the types of jurors. In particular, any kind of dependency is possible. If each juror i has a ??constant strategy??, ?? ⁱ (that is, a strategy that is independent of the size n ?? i of the jury), such that ?? = (?? ¹, ?? ², . . . , ?? ⁿ . . .) satisfies the CJT, then by McLennan (Am Political Sci Rev 92:413?C419, 1998) there exists a Bayesian-Nash equilibrium that also satisfies the CJT. We translate the CJT condition on sequences of constant strategies into the following problem:

(**) For a given sequence of binary random variables X?=?(X ¹, X ², . . . , X ⁿ , . . .) with joint distribution P, does the distribution P satisfy the asymptotic part of the CJT?

We provide sufficient conditions and two general (distinct) necessary conditions for (**). We give a complete solution to this problem when X is a sequence of exchangeable binary random variables.     

The American Trade Dollar

The changes in technology that have affected mail delivery are a dynamic way to encourage students to think critically and make meaningful connections across historical eras. In the classroom, personal communication through the mail can become the “thematic glue” used across historical units to highlight the changes in everyday life caused by technological innovation. The post office initiated changes in streetlighting and crosswalks, stimulated the development of rural roads and highways, and provided passenger services on railways. Classroom teachers can use the activities and discussion questions to introduce students to this entity and its influence on our history.     

The American Revolutionary Period

The United States is currently experiencing the largest wave of immigration in its history. This contemporary immigration is unprecedented in its diversity of ethnicity, class, and countries of origin, and large urban areas are no longer alone in absorbing arrivals. The author reviews children's picture books about dilemmas that immigrant children face, such as being different, coping with great and small changes, responding to one's name, learning a new language, relating to previous generations and traditions, maintaining ties with distant relatives, and visiting their homelands. Classroom materials relevant to the social and cultural experiences of children generate interest in and enthusiasm about learning. When teachers include books about the negotiation of another culture in the curriculum, children learn through reading that stories can be about people like them, that stories of their experiences are worthy of being in a book, and that other children have felt the way they do.     

Jury Selection in Child Sex Abuse Trials: A Case Analysis

Child sex abuse cases have been the target of considerable psycho-legal research. The present paper offers an analysis of psychological constructs for jury selection in child sex abuse cases from the defense perspective. The authors specifically delineate general and case-specific jury selection variables. General variables include authoritarianism, dogmatism, need for cognition, pretrial knowledge, and race/socioeconomic status. Case-specific variables include sexual attitudes, homonegativity, juror abuse history, and beliefs about children. The paper also provides a factual background of a representative case, incorporates relevant case law, identifies sources for voir dire and juror questionnaire items, and discusses lessons from the primary author's first experience as a trial consultant for the defense.     

Youth Jury Policy Deliberation: Towards a Fair and Responsible Internet

Young people aged between 12 and 17 across three major British cities — London, Leeds and Nottingham — were invited to play the role of ‘jurors’ on a case where ‘the Internet was put on trial’. The recommendations reported in this paper are intended to improve digital experience and online safety as contributions to policy. These recommendations derive from the ‘youth jurors’ policy deliberations designed to encourage young people to reflect on their digital experience and collectively develop their own problem definitions and solutions.     

A note on the Condorcet Jury Theorem with supermajority voting rules

Social Choice and Welfare -     

The deinstitutionalization of American marriage

This article argues that marriage has undergone a process of deinstitutionalization—a weakening of the social norms that define partners' behavior—over the past few decades. Examples are presented involving the increasing number and complexity of cohabiting unions and the emergence of same‐sex marriage. Two transitions in the meaning of marriage that occurred in the United States during the 20th century have created the social context for deinstitutionalization. The first transition, noted by Ernest Burgess, was from the institutional marriage to the companionate marriage. The second transition was to the individualized marriage in which the emphasis on personal choice and self‐development expanded. Although the practical importance of marriage has declined, its symbolic significance has remained high and may even have increased. It has become a marker of prestige and personal achievement. Examples of its symbolic significance are presented. The implications for the current state of marriage and its future direction are discussed.     

The state of American Sociology

Sociology appears to be one of the most internally divided disciplines, if not the most. Departmental struggles, which have led to sociologists complaining to administrators about each other, have put the field in bad repute among campus officials and have endangered its survival in some schools. The American Sociological Society and American Sociological Association have been among the most conflict-ridden associations in academe for generations. Severe internecine struggles have a long history in the field. It may be suggested that they are related to the propensity of the field to attract social reformers and political activists. But hard evidence indicates sociology graduate students are among the weakest, as judged by test scores.This is an elaboration of an American Sociological Association presidential presentation to a plenary session of the Southern Sociological Association on April 2, 1993.     

The three eras ofThe American Sociologist

This article outlines the history ofThe American Sociologist from its inception more than fifty years ago to the present. The views of its first editor, L.L. Bernard, reflected one side of the humanist-scientist split that would characterize sociology for generations to come. The second phase of TAS was sponsored by the ASA, under the successive guidance of several editors, each with differing priorities regarding the nature of the journal. Amid increasing conflict regarding content, TAS was dropped by the ASA Council in 1982. In 1987 TAS resumed publication under the sponsorship of Transaction Periodicals. Its challenge is to provide a forum for all viewpoints without alienating its potential audience.     

The American Sociological Association dues structure

In this article, we report on the extent of voluntary compliance by ASA members with the Association dues structure. Comparing our findings from a random survey of ASA members with the distribution of member payments by incomebased dues category, we find a fairly high degree of noncompliance in the highest dues category. This implies, and we observe, that higher fractions of ASA members pay dues in the lower income categories than is consistent with their self-reported income. David N. Laband, author of five books and many journal articles. Richard O. Beil, author of numerous articles in management and economics journals.