Learning in the Allais paradox

Whereas both the Allais paradox, the first empirical challenge of the classical rationality assumptions, and learning have been the focus of many experimental investigations, no experimental study exists today into learning in the pure context of the Allais paradox. This paper presents such a study. We find that choices converge to expected utility maximization if subjects are given the opportunity to learn by both thought and experience, but less so when they learn by thought only. To the extent that genuine preferences should be measured with proper learning and incentives, our study gives the first pure demonstration that irrationalities such as in the Allais paradox are less pronounced than often thought. Paul Anand and Stefan Trautmann made helpful comments.     

A Banzhaf share function for cooperative games in coalition structure

A cooperative game with transferable utility–or simply a TU-game– describes a situation in which players can obtain certain payoffs by cooperation. A value function for these games assigns to every TU-game a distribution of payoffs over the players. Well-known solutions for TU-games are the Shapley and the Banzhaf value. An alternative type of solution is the concept of share function, which assigns to every player in a TU-game its share in the worth of the grand coalition. In this paper we consider TU-games in which the players are organized into a coalition structure being a finite partition of the set of players. The Shapley value has been generalized by Owen to TU-games in coalition structure. We redefine this value function as a share function and show that this solution satisfies the multiplication property that the share of a player in some coalition is equal to the product of the Shapley share of the coalition in a game between the coalitions and the Shapley share of the player in a game between the players within the coalition. Analogously we introduce a Banzhaf coalition structure share function. Application of these share functions to simple majority games show some appealing properties.     

Culture and social policy: a developing field of study

This article takes the increased interest in the relation between culture and social policy as a starting point, and discusses how this increasing attention can be understood as the result of contextual factors such as economic, social and academic trends. It discusses these matters and at the same time reviews briefly some of the main findings of studies that contain a cultural perspective in analysing social policy. A second issue concerns the specific character of cultural perspectives in such analyses. Thus far, most studies in the field have been guided by a notion of culture as consisting of the values, norms and beliefs of welfare state actors. Recently, this notion has been questioned by advocates of the so-called 'cultural turn', who suggest that a radical change in the cultural analysis of social policy is required. The article concludes with a discussion of their claims.     

Neoliberalism,Inequality and Politics: The Changing Face of Australia

Since the early 1980s Australian public policy has undergone the most major transformation since Federation. This transformation has been underwritten by two key principles: liberalism – the view that citizens are autonomous individual actors whose interests are best served when they are free from coercive government interventions into individual action; and marketisation – the belief that free markets are arenas which best enable individual autonomy and produce efficient economic outcomes. These principles define ‘neoliberalism’ or ‘hard liberalism‘. After summarising the major policy changes identified with neoliberalism in Australia, the paper introduces a new research project that examines its impact on socioeconomic inequality, gender inequality and politics and culture. Inspection of relevant data indicates that there are important trends in inequality, public opinion and political behaviour that warrant this investigation.     

Network and Health Changes Among Older Dutch Adults

A negative effect of good health on the instrumental support received can be viewed as an effect of the mobilization of helpers. A positive effect of good health on the personal network size and the instrumental support given demonstrates that people in poor health have difficulty actively maintaining their relationships. Furthermore, the support received and given is positively related to the support given and received in the past. In four waves of a seven–year longitudinal study, personal interviews were conducted with 2,302 older Dutch adults (aged 60 to 85) who live on their own. The hypotheses have been confirmed. An implication is that investing in relationships by giving support might pay off in times of need.     

SHORT REVIEWS

Books reviewed in this article: Gay Becker, The Elusive Embryo: How Women and Men Approach New Reproductive Technologies Theodore Caplow, Louis Hicks, and Ben J. Wattenberg, The First Measured Century: An Illustrated Guide to Trends in America, 1900–2000 Stephen Moore and Julian L. Simon, It's Getting Better All the Time: 100 Greatest Trends of the Last 100 Years Elisabeth Croll, Endangered Daughters: Discrimination and Development in Asia Barbara Entwisle and Gail E. Henderson (Eds.), Re‐Drawing Boundaries: Work, Households, and Gender in China David T. Graham and Nana K. Poku (Eds.), Migration, Globalisation and Human Security Paul Harrison and Fred Pearce, AAAS Atlas of Population and Environment Russell King, Paolo De Mas, and Jan Mansvelt Beck (Eds.), Geography, Environment and Development in the Mediterranean Michael T. Klare, Resource Wars: The New Landscape of Global Conflict Korea Institute for Health and Social Affairs and United Nations Population Fund, Low Fertility and Policy Responses to Issues of Ageing and Welfare National Assessment Synthesis Team, Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change. Report for the US Global Change Research Program Jacques Vaixin and Thérèse Locoh (Eds.), Population et développement en Tunisie: La métamorphose