The ratio bias phenomenon: fact or artifact?

The ratio bias—according to which individuals prefer to bet on probabilities expressed as a ratio of large numbers to normatively equivalent or superior probabilities expressed as a ratio of small numbers—has recently gained momentum, with researchers especially in health economics emphasizing the policy importance of the phenomenon. Although the bias has been replicated several times, some doubts remain about its economic significance. Our two experiments show that the bias disappears once order effects are excluded, and once salient and dominant incentives are provided. This holds true for both choice and valuation tasks. Also, adding context to the decision problem does not alter this finding. No ratio bias could be found in between-subject tests either, which leads us to the conclusion that the policy relevance of the phenomenon is doubtful at best.     

Identity Dynamics, Action and Context

The aim of this article is to present an investigation of the action-representation relationship, via the processes which arise from the effects of one's action and the effects of one's capacity (normative and subjective). These effects are, in our view, of major importance, for they link social legitimation and the personal skill necessary for the preparation and carrying out of action. We look at this complex relationship, and propose a model, the capacity model, which situates action as an executory regulator of representation, which allows us to take some steps towards an explanation of the processes which link action and representation within the identity dynamic.     

Six‐Month‐Olds' Detection of Clauses Embedded in Continuous Speech: Effects of Prosodic Well‐Formedness

Three experiments investigated the role of prosodic structure for infants' recognition of embedded word sequences. Six‐month‐olds were familiarized with 2 versions of the same sequence, 1 corresponding to a well‐formed prosodic unit and the other to a prosodically ill‐formed sequence (although a successive word series). Next, infants heard 2 test passages. One included the well‐formed unit, and the other included the ill‐formed sequence. In Experiment 1, infants listened longer to the passage containing the well‐formed unit, suggesting that such units, even when they are embedded, are better recognized. Experiments 2 and 3 showed that this better recognition does not depend on an acoustic match between the familiarized sequences and their later embeddings. This suggests that the advantage of the well‐formed unit is at least partially due to infants' use of prosody to parse continuous speech.     

Child custody issues and co‐occurrence of intimate partner violence and child maltreatment: controversies and points of agreement amongst practitioners

The situation of families undergoing separation in a context of co‐occurrence of intimate partner violence (IPV) and child maltreatment raises certain issues related to child custody. The results presented in this paper were collected and analysed within the framework of a qualitative study aiming to identify the principal points of agreement and the main controversies amongst practitioners in several different types of organizations. Focus groups were held with a total of 43 practitioners from six different settings concerned with child custody in cases of co‐occurrence of IPV and child maltreatment. Although they agreed on the importance of ensuring the safety of victims of violence, their views diverged on three points: (1) the importance of preserving the father–child relationship; (2) collaboration between voluntary organizations and semi‐voluntary or legal agencies; and (3) consideration of cultural differences.     

Hong Kong managers' perceptions of American business values

This report describes empirical research conducted to study the research question, “To what extent do foreign managers' own cultural values influence their perceptions of the corporate values of companies in other cultures?” Using the authors' “Business Values Questionnaire,” business managers from Hong Kong gave their perceptions of publicly stated corporate values of very large U.S. service companies. A similar United States sample was used as a comparison group. Results gave partial support to the authors' hypotheses that an individual's own cultural values influence perceived values of another culture.     

On the detection of changes in autoregressive time series I. Asymptotics

Various test statistics are discussed which can be used for detecting changes in the parameters of an autoregressive time series. In this first part of our study, the limiting behavior of the test statistics is derived under the null hypothesis of no change as well as under alternatives. In a forthcoming second part of our investigation, these asymptotic results will be compared to some corresponding bootstrap procedures, and a small simulation study will be conducted.     

Engendering Inequality: Processes of Sex-Segregation on Wall Street

Women's numbers in high-paying, male-dominated occupations have risen in the past three decades, but they disproportionately hold lower-paying jobs within those occupations. A cohort sample of Wall Street securities professionals shows how sex segregation occurs over time, as men's and women's different experiences lead them to change functions, to change firms, or to leave the securities industry. While seemingly similar processes impinge on the careers of everyone in this exceptionally high-paid occupation, family constraints and gender discrimination produce differential results for similarly qualified men and women. Over time men disproportionately gain the very highest paying Wall Street jobs.