A derivation of the money Rawlsian solution

We study the set of envy-free allocations for economies with indivisible objects and quasi-linear utility functions. We characterize the minimal amount of money necessary for its nonemptiness when negative distributions of money are not allowed. We also find that, when this is precisely the available amount of money, there is a unique way to combine objects and money such that these bundles may form an envy-free allocation. Based on this property, we describe a solution to the envy-free selection problem following a pseudo-egalitarian criterion. This solution coincides with the Money Rawlsian Solution proposed by Alkan et al. (1991).I am indebted to I. Gilboa for his valuable suggestions and his patience during the elaboration of the final version. I also wish to thank S. Barbera for his guidance in an earlier version and M. Boldrin, H. Moulin, Z. Neeman, W. Thomson and the referees for their comments. Financial support from FPU-MEC (Spain) is gratefully acknowledged.Northwestern University.     

A Bayesian model for estimating the malaria transition probabilities considering individuals lost to follow-up

It is known that patients may cease participating in a longitudinal study and become lost to follow-up. The objective of this article is to present a Bayesian model to estimate the malaria transition probabilities considering individuals lost to follow-up. We consider a homogeneous population, and it is assumed that the considered period of time is small enough to avoid two or more transitions from one state of health to another. The proposed model is based on a Gibbs sampling algorithm that uses information of lost to follow-up at the end of the longitudinal study. To simulate the unknown number of individuals with positive and negative states of malaria at the end of the study and lost to follow-up, two latent variables were introduced in the model. We used a real data set and a simulated data to illustrate the application of the methodology. The proposed model showed a good fit to these data sets, and the algorithm did not show problems of convergence or lack of identifiability. We conclude that the proposed model is a good alternative to estimate probabilities of transitions from one state of health to the other in studies with low adherence to follow-up.     

POLITICAL REPUTATIONS AND CAMPAIGN PROMISES

We analyze conditions under which candidates' reputations may affect voters' beliefs over what policy will be implemented by the winning candidate of an election. We develop a model of repeated elections with complete information in which candidates are purely ideological. We analyze an equilibrium in which voters' strategies involve a credible threat to punish candidates who renege on their campaign promises and in which all campaign promises are believed by voters and honored by candidates. We characterize the maximal credible campaign promises and find that the degree to which promises are credible in equilibrium is an increasing function of the value of a candidate's reputation. (JEL: D8)     

Risk Perception Among Smokers: A Qualitative Study

The aim of this qualitative study is to identify the dimensions people used to assess the risk of smoking and then compare them with those used by health professionals in primary healthcare. Five discussion groups were conducted. The field work was carried out in Barcelona (Spain), from February 2005 to January 2006. Data were analyzed following a semantic‐thematic categorical content analysis (ACC‐ts). Results showed that people tend to employ stereotypical discourses when evaluating the risk of smoking. Similarly, they reassess the risk in the context of their life experience and incorporate new nuances to the arguments sustaining their behavior. Once this reassessment takes place, the decision to continue smoking emerges, and smokers come up with additional arguments justifying their habit (i.e., age, benefits related to costs). Professionals are aware of this process and its multidimensional nature. Nevertheless, their discourse loses this multidimensional feature when discussing the strategies they use at smoking cessation interventions. This qualitative study increases the understanding of various meanings that people attribute to their life experience. These assumptions may be useful for developing health practices that are closer to people. As a practical utility of these results, it would be interesting to apply a preliminary assessment of the different meanings that people attribute to smoking from their life context in risk communication.     

Making statements and approval voting

We assume that people have a need to make statements, and construct a model in which this need is the sole determinant of voting behavior. In this model, an individual selects a ballot that makes as close a statement as possible to her ideal point, where abstaining from voting is a possible (null) statement. We show that in such a model, a political system that adopts approval voting may be expected to enjoy a significantly higher rate of participation in elections than a comparable system with plurality rule.     

Measuring warmth and competence at inter-group,interpersonal and individual levels / Medición de la cordialidad y la competencia en los niveles intergrupal,interindividual e individual

Abstract

Warmth and competence are universal dimensions of social perception that articulate the perception of other individuals and social groups. However, there are no scales that have systematically been used in psychosocial research. The purpose of this study is to construct two scales, one on warmth and another on competence, which could be used at the inter-group, interpersonal and individual levels. To accomplish this, we performed two studies. In Study I (N = 578 students and N = 540 general population), we tested the scales at the intergroup level (immigrant groups and Spaniards), the interpersonal level (people close to the participants) and the individual level (the participants themselves). In Study 2 (N = 184 students), the two scales were tested at an interpersonal level by evaluating 16 public figures. The results of both studies show that both the warmth scale (kind, pleasant, friendly, warm) and the competence scale (competent, effective, skilled, intelligent) achieved a high degree of reliability when reflecting the perception of groups, individuals and oneself.     

‘The Mexican’ and ‘The Cancer in the South’: Discourses of Race,Nation and Anti-blackness in Early Twentieth-Century Debates on Mexican Immigration

This article explores the flexible manner in which discourses of anti-black racism were employed within congressional debates on the proposed restriction of Mexican immigration at the end of the 1920s. I examine how both sides of this debate placed Mexicans within a particular historical narrative of race and nation, positioned in relation to a range of other populations, including Chinese and Japanese immigrants, Native Americans, Filipinos and Puerto Ricans. Within these narratives, slavery and the imagined negro problem were particularly salient, being frequently used to orient racial interpretations of Mexican immigrants as well as the manner in which they were positioned in relation to other ‘racial elements’. Imprinted with US histories of slavery, conquest and empire, these discourses offer insight into the ambivalent interrelationships of American’s multiple trajectories of racism.     

The objects that personalize bedrooms and their relationship with attachment and self / Los objetos que personalizan los dormitorios y su relación con el apego y el self

The personalization of space is constructed through the items that the resident distributes around the space they inhabit, and they can be considered part of the resident’s self. Three studies were conducted with the goal of establishing the categories into which the objects contained in bedrooms can be organized and to evaluate to what extent these categories are related to the extended self and attachment. In the first study, with 77 students, we obtained a list of the most representative objects in their bedrooms. In the next study, a group of 56 students classified these objects freely using their own criteria; a subsequent cluster analysis showed four categories: Functional, Personal Grooming, Symbolic and Free Time. In the last study, 144 students evaluated the relationship between the categories of the objects and the extended self and attachment. The results showed that the residents’ representative objects were part of their extended self more than the level of attachment attributed to these objects.