Topological aggregation of preferences: the case of a continuum of agents

 This paper studies the topological approach to social choice theory initiated by G. Chichilnisky (1980), extending it to the case of a continuum of agents. The social choice rules are continuous anonymous maps defined on preference spaces which respect unanimity. We establish that a social choice rule exists for a continuum of agents if and only if the space of preferences is contractible. We provide also a topological characterization of such rules as generalized means or mathematical expectations of individual preferences. Received: 30 November 1994/Accepted: 22 April 1996     

Interest Organizations,Information, and Policy Innovation in the U.S. Congress1 2

Interest organizations are hypothesized to strongly affect public policy, but the evidence that they do so is mixed. This article argues that one reason for the disparity is a gap between theory and research: theory suggests that information provided by interest organizations should strongly influence elected officials, but there is no systematic research on its impact. We examine a potentially important source of information for members of the U.S. Congress—testimony at committee hearings—to ascertain if it affects the enactment of policy proposals. The data, based on content analysis of almost 1,000 testimonies on a stratified random sample of policy proposals, describe who testifies, their arguments, and the evidence they provide. Supporters of a proposal emphasize the importance of the problem being addressed, while opponents claim the proposed policy will be ineffective and try to reframe the debate. Information—particularly information regarding policy effectiveness—does affect the likelihood that a policy proposal will be enacted.     

Introduction of a child sexual abuse policy in a health district

SUMMARY. Three one day workshops for 40 senior clinical staff were held to introduce a new Operational Policy on Child Sexual Abuse (CSA) and to provide them with a teaching package to enable them to run ‘cascade’ teaching sessions for other staff and colleagues. Part I of this paper describes an evaluation of the workshop; Part II describes an evaluation of the cascade The workshop evaluation showed that knowledge about CSA and policy issues was already good, but although that knowledge did improve after the workshop, attitudes about sexual behaviour were not changed by the workshop. Evaluation of the cascade also showed an increase in knowledge after the dissemination exercise     

Place making,grassroots organizing,and rural protest: A case study of Anahim Lake,British Columbia

Contemporary rural social movements bring diverse interest groups and stakeholders together at the local scale in the pursuit of common visions and goals, often against the backdrop of an external threat. The challenge for a movement's leaders is to negotiate and design a rural agenda that resonates with this complex constituency. One way to approach this problem is to construct and politicize a local sense of place as a means of rallying insiders against outside forces and pressures. This article explores the place-making activities of rural leaders operating within a complex social setting through an analysis of a grassroots social movement in Anahim Lake, British Columbia. The study uses the concept of the “place frame” to explore how Anahim's activists created a local discursive framework that enabled them to bridge dissimilar environmental values and practices within the community. The removal of external pressures following protest, however, saw the dissolution of this alignment. In documenting this process, the article contributes to a fuller understanding of the significance of place in grassroots protest and activism.     

Bayesian analysis of human movement curves

Summary.  We consider the Bayesian analysis of human movement data, where the subjects perform various reaching tasks. A set of markers is placed on each subject and a system of cameras records the three-dimensional Cartesian co-ordinates of the markers during the reaching movement. It is of interest to describe the mean and variability of the curves that are traced by the markers during one reaching movement, and to identify any differences due to covariates. We propose a methodology based on a hierarchical Bayesian model for the curves. An important part of the method is to obtain identifiable features of the movement so that different curves can be compared after temporal warping. We consider four landmarks and a set of equally spaced pseudolandmarks are located in between. We demonstrate that the algorithm works well in locating the landmarks, and shape analysis techniques are used to describe the posterior distribution of the mean curve. A feature of this type of data is that some parts of the movement data may be missing—the Bayesian methodology is easily adapted to cope with this situation.     

The politics of pluriactivity in Britain

This paper examines the political context to policies promoting farm diversification in Britain, in an attempt to understand both the fundamental contradictions which lie within these policies and the particular emphasis placed upon on-farm diversification in Britain. The paper begins therefore with an analysis of the politics of British agriculture in the 1980s, and then focuses in detail on policies which promote farm diversification. Finally, the paper compares these policies with evidence of trends and characteristics of pluriactivity in Britain, and suggests three major contradictions between government policies and observed farm household behaviour. A majority of farm households see little need to diversify and have even less inclination to do so. Any redeployment of on-farm resources is most likely to occur on the sale or transfer of the farm, and is unlikely to offer a source of alternative income for poor farmers.     

Treatment of the mother in the incest family: The beginning phase

This paper discusses significant counter-transference issues and presents a conceptual framework for ordering the strategies in treating the mother in the incest family. The development of empathy is suggested as the primary engagement tool, and obstacles to its development are analyzed.The major theoretical construct that is employed in formulating the treatment approach is that of the traumagenic dynamics model presented by Finkelhor and Browne (1985). The manner in which this framework can be employed in assessment and prioritizing treatment goals is outlined. Specific approaches for the beginning phase of work with the mother are then described.