On the Choice of the Ridge Parameter: A Maximum Entropy Approach

In this article, a new method to estimate the ridge parameter, based on the ridge trace and an analytical method borrowed from maximum entropy, is presented. The performance of the new estimator is illustrated through a Monte Carlo simulation study and an empirical application to the well-known Portland cement data set.     

Waiting to Inhale: The Demographics of Toxic Air Release Facilities in 21st‐Century California*

Objectives. We examine the spatial distribution of toxic air releases and residential demographics in California using 2000 Census data and coeval information from the Federal Toxic Release Inventory for evidence of disproportionate exposure. Methods. We use spatial analysis using GIS, and multivariate regression analysis, including ordered and multinomial logit regressions, in our study. Results. Analytical results suggest a pattern of disproportionate exposure based on race, with the disparity most severe for Latinos, which holds in a series of multivariate regressions, including attempts to test for varying levels of pollution risk and to control for spatial dependence. Conclusions. The study corroborates earlier research focused in the Los Angeles area, and suggests that recent concerns about environmental inequities affecting Latinos in California may be well founded.     

A Unified Approach To The Myerson Value And The Position Value

We reconsider the Myerson value and the position value for communication situations. In case the underlying game is a unanimity game, we show that each of these values can be computed using the inclusion--exclusion principle. Linearity of both values permits us to calculate them without needing the dividends of the induced games (graph-restricted game and link game). The expression of these dividends is only derived in the existing literature for special communication situations. Moreover, the associated inclusion--exclusion decomposability property depends on what we have called the graph allocation rule. This rule is the relative degree (relative indicator) for the position value (Myerson value).     

Spanish version of the Cultural Intelligence Scale (CQS) / Versión española de la Escala de Inteligencia Cultural (EIC)

Abstract

In recent years, the concept of cultural intelligence has received increasing attention by researchers and professionals because of its theoretical and practical importance. To understand why some individuals adapt more effectively than others to culturally different social contexts has become a goal with implications for education, recruitment and the prevention of social conflict. The goal of this study was to adapt the Cultural Intelligence Scale (CQS) to Spanish. To do so, two studies were carried out. In the first, the psychometric properties generated by the CQS on a Spanish sample (N = 413) were analysed. In the second study, a confirmatory replication of the factor structure and reliability of the CQS was performed with a different Spanish sample (N = 526) from the first study. The results indicated that the Spanish version of the Cultural Intelligence Scale can be considered a useful and appropriate tool to be used with psychometric guarantees in the Spanish-speaking population.     

Evolution of hostile sexism and benevolent sexism in a spanish sample

The aim of this research is toevaluate the evolution of ambivalent sexismtoward women (ASI: Ambivalent Sexism Inventory,Glick and Fiske, 1996) and men (AMI: Acttitudetoward Men Inventory; Glick and Fiske, 1999)with a Spanish sample between 18–65 years ofage (n = 1003). The results show that sexistattitudes toward women and men are conditionedin different ways according to sex and age.Women as well as men have a more hostileattitude towards the opposite sex; but men havebenevolent attitudes toward both men and women.Moreover, there are similarities between thesexes in relation to their benevolent attitudestoward men. It is very interesting to point outthat below the age range of 38–42, there arefewer sexist attitudes and there are significantdifferences between the sexes about sexistattitudes toward women. We conclude that inorder to explain the evolution of sexistattitudes toward men and women, we must takeinto account not only generational changes butalso cultural and historical changes.     

The Theory of Optimal Delegation With an Application to Tariff Caps

We consider a general representation of the delegation problem, with and without money burning, and provide sufficient and necessary conditions under which an interval allocation is optimal. We also apply our results to the theory of trade agreements among privately informed governments. For both perfect and monopolistic competition settings, we provide conditions under which tariff caps are optimal.