Migration of Hispanic Youth and Poverty Status: A Logit Analysis

Abstract In 1988 the Census Bureau reported that 28.2 percent of the 20 million U.S. Hispanics lived in poverty. This research focuses on the relationship between poverty and the migration of Hispanic youth. Individual- and county-level variables are incorporated into a logit analysis. An important finding is that Hispanic youth who are poor have higher ratios of migration than nonpoor Hispanic youth. Also, Hispanic youth residing in counties with higher rates of poverty are more likely to migrate than those living in more prosperous counties. However, these relationships change when multilevel interactions between individual and contextual variables are considered.     

Ordinal models and generalized estimating equations to evaluate disease severity

Many assays have been carried out in Capsicum spp. in order to evaluate its resistance to Phytophthora capsici , which causes blight and considerable yield loss. An assay aiming at the selection of resistant pepper and bell pepper genotypes to P. capsici was jointly performed in the laboratory of the Phytopathological Clinic of Entomology, Phytopathology and Agricultural Zoology and in the experimental area of the Plant Production Department, both located at ESALQ, University of São Paulo, Brazil. The data set for this assay comes from ordinal categorized random variables, whose analysis does not generally take into account the ordinal nature of the responses, but instead, builds indexes, among other measures, in order to evaluate the resistance of the studied genotypes. This work presents ordinal generalized linear fits in order to evaluate blight severity as well as to identify and select new resources to the pathogen. It also analyses the estimating equations proposed by Liang & Zeger (1986a, b) in order to obtain an infection pattern for the disease. From the fit of the cumulative logit models, valuable genotypes are identified for genetic breeding programs.     

Preparing an Effective Occupational Information Brochure for Ethnic Minorities

This article discusses the rationale for and process of creating and developing an occupational information brochure targeted for ethnic minority students. Minorities need to expand their awareness and knowledge of career options, and few specifically targeted resources now exist. Field testing during the development process showed that a printed brochure answering questions on how to pursue a specific occupation that contains brief biographies of ethnic minority role models, can both inform and inspire. Such a resource can help equalize minority access to career opportunities.     

Expectations of additional children by race,parity, and selected socio-economic characteristics,United States: 1967

This is a study of fertility expectations of wives in relation to selected demographic and social and economic characteristics. The data for this study were obtained from a special survey conducted in 1967 from a probability sample of 30,000 households. The analyzed data show that the number of children expected in the next five years is inversely related to parity. Because of the inverse relationship, the expectations of additional children tend to be inversely related to age at marriage of wife, number of years married, and similar temporal variables. The data show also that there exists an inverse relationship between expectations of additional children and selected socio-economic characteristics, such as education of wife, occupation, and income of husband.     

Context-Sensitive Linking

Abstract

Linking services that provide seamless access to a library's e-journal collections are becoming increasingly prominent. This article outlines some of the hurdles to seamless linking and discusses the technologies that make linking services possible. These include the Digital Object Identifier, the CrossRef initiative, the development of emerging standards like the OpenURL, resolution servers, and an examination of how these are incorporated into a linking service. The authors interviewed representatives from four companies providing linking services—Ex Libris, Sirsi, Endeavor, and Openly Informatics—and describes features of their systems. Serials Review 2002; 28:267–282.     

DEBT,POLICY UNCERTAINTY,AND EXPECTATIONS STABILIZATION

This paper develops a model of policy regime uncertainty and its consequences for stabilizing expectations. Because of learning dynamics, uncertainty about monetary and fiscal policy is shown to restrict, relative to a rational expectations analysis, the set of policies consistent with macroeconomic stability. Anchoring expectations by communicating about monetary and fiscal policy enlarges the set of policies consistent with stability. However, absent anchored fiscal expectations, the advantages from anchoring monetary expectations are smaller the larger is the average level of indebtedness. Finally, even when expectations are stabilized in the long run, the higher are average debt levels the more persistent will be the effects of disturbances out of rational expectations equilibrium.