Characterization of a class cf discrete distributions by properties of their moment distributions

The concept of a moment distribution is here applied to the class of factorial series distributions introduced by the author (197U). Moment distributions turn out to have a simple interpretation in this case and often take on a simple form. A few examples are given to illustrate this fact     

Explaining Attitudes toward Immigrants and Immigration Policy: A Review of the Theoretical Literature

In the research literature on immigration attitudes, there are a number of theories that explain why individuals hold positive or negative opinions of certain immigrant groups and immigration policies. In this review of the literature, the theories are summarized into five categories: personal and social identity, self and group interest, cultural values and beliefs, social interaction, and multilevel theories. The majority of the theories offer explanations that favor one causal direction, focus on social psychology or the social structural environment, and assume that effects are additive rather than interactive. It is argued in this review that scholars would benefit by using multilevel theories, such as group position theory and intersectionality, in order to extend their explanatory reach past the theoretical standards and, in doing so, be able to better examine some understudied but important questions, such as why individuals often hold pro‐ and anti‐immigrant opinions simultaneously. Multilevel theories have the potential to offer a nuanced understanding of immigration attitudes.     

A bootstrap test for time series linearity

A bootstrap algorithm is proposed for testing Gaussianity and linearity in stationary time series, and consistency of the relevant bootstrap approximations is proven rigorously for the first time. Subba Rao and Gabr (1980) and Hinich (1982) have formulated some well-known nonparametric tests for Gaussianity and linearity based on the asymptotic distribution of the normalized bispectrum. The proposed bootstrap procedure gives an alternative way to approximate the finite-sample null distribution of such test statistics. We revisit a modified form of Hinich's test utilizing kernel smoothing, and compare its performance to the bootstrap test on several simulated data sets and two real data sets—the S&P 500 returns and the quarterly US real GNP growth rate. Interestingly, Hinich's test and the proposed bootstrapped version yield substantially different results when testing Gaussianity and linearity of the GNP data.     

Family Structure and Early Home Leaving: A Mediation Analysis

An ample body of research has shown that young adults from non-intact families are more likely to leave the parental home at an early age than young adults from intact families. However, little is known about the mechanisms underlying this relationship. We drew on prospective longitudinal data from the German Socio-Economic Panel Study (SOEP) to examine why young adults from non-intact families are more likely to leave home early. Based on the feathered nest hypothesis, it was expected that young adults from non-intact families are pushed out of the parental home because of a lack in economic, social, and community resources. Moreover, it was expected that young adults from non-intact families are pulled toward independent living at a younger age because they have a partner and are employed earlier in life. We employed discrete-time event history models and used the KHB method to test relative weights of the mediators. The mediators explained 16% (women) and 22% (men) of the effect of living in a stepfamily, and 50% (women) and 37% (men) of the effect of living in a single-mother family. Economic resources were the main mediator for the effect of living in a single-mother family on early home leaving. For women, mother’s life satisfaction and housing conditions significantly explained differences in early home leaving between single-mother and intact families. For men, residential mobility significantly mediated the effect of family structure on early home leaving.     

Incorporating Price and Replacement Purchases in New Product Diffusion Models for Consumer Durables*

The article presents theoretical and empirical research findings which incorporate price and replacement purchases in new product diffusion models. On the theoretical side, this paper characterizes, qualitatively, optimum pricing policies for new products. Possible entry of rivals is not considered, but repeat sales, cost learning dynamics and discounting of future profit streams are allowed. Theoretical research findings suggest that the inclusion of repeat purchases in the diffusion model significantly changes the derived optimal pricing policy even if replacements were not price dependent. On the empirical side, alternative first purchase and repeat purchase models have been estimated and compared using nonlinear procedures. The diffusion data analyzed is related to nine consumer durables. Empirical research findings suggest that, for the considered product categories, diffusion is basically an imitative process, price can affect first and replacement purchases, and unit production cost is a decreasing function of cumulative first purchases. Managerial implications of the research findings are also discussed.     

Structural Validation and Multiple Group Assessment of the Short Internalized Homonegativity Scale in Homosexual and Bisexual Men in 38 European Countries: Results From the European MSM Internet Survey

Internalized homonegativity (IH) is the internalization of negative attitudes and assumptions about homosexual people by homosexual people themselves. To measure IH, Smolenski, Diamond, Ross, and Rosser (2010) and Ross, Rosser, and Smolenski (2010) revised the Reactions to Homosexuality Scale (RHS) to develop the Short Internalized Homonegativity Scale (SIHS) with eight items. Using the European Men Who Have Sex With Men Internet Survey (EMIS) data, with an analytic sample of 130,718 gay and bisexual men in 38 European countries, we confirmed the validity of the SIHS scale in both training and validation data, in strata of Ross, Berg, et al.’s (2013) three “homosexual discrimination” country clusters, of age, and of education level. However, the performance was less adequate in comparison of gay versus bisexually identified individuals. The latent SIHS structure contains only minor variations across these three strata. The seven-item scale performed as well as the eight-item scale. The SIHS is a promising candidate for standard IH measures, which is invariant across cultural, age, and educational strata.     

The Present Retirement Crisis and How Social Workers Can Respond

ABSTRACT

Research on Americans’ retirement readiness indicates a wide range of preparedness for the golden years. Called a “crisis” by researchers, retirement for some may include significant choices: continued employment or utilization of social welfare services. This article describes factors contributing to the retirement crisis and roles social workers can play in assisting older retirees. Disparity in household retirement savings exists by ethnicity. On the front lines serving aging individuals and their families, social work professionals are well situated to collaborate with individuals, and other providers, to address financial, social and emotional pillars necessary in facilitating a safe and secure retirement.     

User involvement and empowerment among asylum seekers in Norwegian reception centres

A considerable amount of literature has been published on conditions in reception centres for asylum seekers. The previous studies show that the life of residents in the centres is characterised by uncertainty, passivity, powerlessness and gradual disqualification. Drawing from data collected from asylum seekers and service providers in Norwegian reception centres, this article examines the tools used to counteract these processes. The article maintains that organised activities, such as language courses and user involvement in the form of cooperative councils, have an impact on the empowerment of asylum seekers. However, user motivation for participation and involvement in these arrangements is undermined, due to residents' responses on factors which operate both at the structural and relational level. The findings and questions raised in the article have wider implications for social work with asylum seekers in other European countries, as well as for current efforts being made by EU countries to regulate reception conditions for asylum seekers. Among other things, the authors relate their findings to reception standards as defined in the EU Directive on Reception Conditions for asylum seekers.