Semi‐parametric Estimation in a Single‐index Model with Endogenous Variables

We consider a semiparametric single‐index model and suppose that endogeneity is present in the explanatory variables. The presence of an instrument is assumed, that is, non‐correlated with the error term. We propose an estimator of the parametric component of the model, which is the solution of an ill‐posed inverse problem. The estimator is shown to be asymptotically normal under certain regularity conditions. A simulation study is conducted to illustrate the finite sample performance of the proposed estimator.     

Sterile water injections for childbirth pain: An evidenced based guide to practice

Background

About 30% of women in labour suffer from lower back pain. Studies of sterile water injections for management of low back pain have consistently shown this approach to be effective. The objective of this evidence-based guide is to facilitate the clinical use of sterile water injections to relieve lower back pain in labouring women.

Interethnische Freundschaften in Deutschland

This paper examines interethnic friendships between immigrants or their descendants and the majority population in Germany. The focus is on differences in cross-ethnic contacts across immigrant groups and generations. The contribution addresses the conditions which lead to differential patterns in interethnic ties and considers arguments related to opportunities, preferences and third parties. Using the German Socio-Economic Panel Study (SOEP) the longitudinal analyses reveal increasing shares of interethnic friendships across generations. At the same time, substantive differences between immigrant groups emerge: Whereas Turks less often name German friends, resettlers from Poland and the Former Soviet Union as well as immigrants from Southern European origins, more often interact with members of the German majority. These differences are related above all to German language skills and, in the case of resettlers, also to a strong orientation towards the destination country. Structural and social conditions matter as well. When considering these aspects, the initial differences largely disappear.     

The Eudaimonic and Hedonic Components of Happiness: Qualitative and Quantitative Findings

This paper illustrates a new project developed by a cross-country team of researchers, with the aim of studying the hedonic and eudaimonic components of happiness through a mixed method approach combining both qualitative and quantitative analyses. Data were collected from 666 participants in Australia, Croatia, Germany, Italy, Portugal, Spain, and South Africa. A major aim of the study was to examine definitions and experiences of happiness using open-ended questions. Among the components of well-being traditionally associated with the eudaimonic approach, meaning in particular was explored in terms of constituents, relevance, and subjective experience. The Satisfaction With Life Scale (SWLS) was also administered to quantitatively assess the hedonic dimension of happiness. Results showed that happiness was primarily defined as a condition of psychological balance and harmony. Among the different life domains, family and social relations were prominently associated with happiness and meaningfulness. The quantitative analyses highlighted the relationship between happiness, meaningfulness, and satisfaction with life, as well as the different and complementary contributions of each component to well-being. At the theoretical and methodological levels, findings suggest the importance of jointly investigating happiness and its relationship with other dimensions of well-being, in order to detect differences and synergies among them.     

Low-Income Women Speak out About Housing: A High-Stakes Game of Musical Chairs

This review of the social science literature examines correlates of homelessness. The review is supplemented by the voices of 12 low-income women who are temporarily housed or living in public housing. Homelessness for women is associated with teen pregnancy and parenting, domestic violence, working at minimum-wage jobs, and waiting lists of several years for subsidized housing. We conclude with a summary of women's experiences accessing government housing programs. Public policy recommendations regarding housing programs are made. Government housing programs are briefly described in an Appendix to the article.     

Jokes and routines make everyday life a good life—on ‘doing family’ for young people in foster care in Sweden

The aim of this article is to identify inclusion practices in foster families by studying the everyday life of young people entering various types of foster family. Structure and warmth in the family stand out as important dimensions of everyday life. What is not so evident in previous research is the way emotional ‘warmth’ is created. In particular, joking, gentle teasing and laughing, which in this paper stand out as important inclusion practices, seem to be rather unknown aspects in foster care, as is the importance of doing things together in everyday life. The young people's contributions in creating a good family atmosphere are visible in the study, as is their capacity to adapt to a new family. Daily routines normalise the adolescents' everyday life. Negotiations make them part of important decisions, and may strengthen them as social agents. Foster parents' positive attitude towards birth family facilitates birth parents' support to their children. In this case study, mixed qualitative methods are used: interviews, network maps, ‘beepers’ and video recordings in the foster home.     

An application of the Impact Evaluation Process for designing a performance measurement and evaluation framework in K-12 environments

This article illustrates the application of the Impact Evaluation Process for the design of a performance measurement and evaluation framework for an urban high school. One of the key aims of this framework is to enhance decision-making by providing timely feedback about the effectiveness of various performance improvement interventions. The framework design process is guided by the Impact Evaluation Process, and included the participation of key stakeholders including administrative and teaching staff who all contributed to the performance measurement and evaluation framework design process. Key performance indicators at the strategic, tactical, and operational levels were derived from the school vision, and linked to specific interventions to facilitate the continuous evaluation and improvement process.     

Estimation of Conditional Ranks and Tests of Exogeneity in Nonparametric Nonseparable Models

Consider a nonparametric nonseparable regression model Y = ?(Z, U), where ?(Z, U) is strictly increasing in U and U ～ U[0, 1]. We suppose that there exists an instrument W that is independent of U. The observable random variables are Y, Z, and W, all one-dimensional. We construct test statistics for the hypothesis that Z is exogenous, that is, that U is independent of Z. The test statistics are based on the observation that Z is exogenous if and only if V = F_Y|Z(Y|Z) is independent of W, and hence they do not require the estimation of the function ?. The asymptotic properties of the proposed tests are proved, and a bootstrap approximation of the critical values of the tests is shown to be consistent and to work for finite samples via simulations. An empirical example using the U.K. Family Expenditure Survey is also given. As a byproduct of our results we obtain the asymptotic properties of a kernel estimator of the distribution of V, which equals U when Z is exogenous. We show that this estimator converges to the uniform distribution at faster rate than the parametric n^{? 1/2}-rate.     

What Motivates Individuals to Protect Themselves from Risks: The Case of Wildland Fires

This research investigates the cognitive perceptual process that homeowners go through when faced with the decision to protect themselves from the risk of wildfires. This decision can be examined by looking at the interaction between the integrated protection motivation theory-transtheoretical model and different levels of homeowners' subjective knowledge related to wildfire risks. We investigated the role of motivation, decision stages of risk readiness, and subjective knowledge on the number of risk-mitigating actions undertaken by homeowners living in high-risk communities. The results indicate that homeowners who are in an early or precontemplative stage (both low and high subjective knowledge) as well as low knowledge contemplatives are motivated by their perceived degree of vulnerability to mitigate the risk. In contrast, high knowledge contemplatives' potential behavioral changes are more likely to be motivated by increasing their perceptions of the severity of the risk. Risk-mitigating behaviors undertaken by high knowledge action homeowners are influenced by their perceptions of risk severity, self-efficacy, and response efficacy. In contrast, the low knowledge action homeowners engage in risk reduction behaviors without the influence of any of the PMT variables; demonstrating their motivation to emulate others in their community. These results have implications for the type of information that should be used to effectively communicate risks in an effort to influence the diverse homeowner segments to engage in risk-reduction behaviors.     

Wellbeing Among Indonesian Labour Migrants to Malaysia: Implications of the 2011 Memorandum of Understanding

A spate of media attention has focused on the harsh conditions endured by Indonesian labour migrants in Malaysia. In June 2009, human rights abuses led to a ban by Indonesia on recruitment of Indonesians for domestic service in Malaysia. This ban was overturned on May 30th 2011, with the signing of a Memorandum of Understanding (MoU) between the two nations on migrant employment conditions. Against this backdrop, this paper reports on the findings of a survey administering the Personal Wellbeing Index (PWI) among a sample of Indonesian labour migrants. The aims of the study were: (a) to determine the degree to which Indonesian labour migrants to Malaysia are satisfied with their lives; (b) to contribute the first psychometric data for the PWI for this migrant group; (c) to compare results to existing studies for other labour migrants in Asia; (d) to examine whether the PWI responses fall within the narrow range predicted by the ‘Theory of Subjective Wellbeing Homeostasis’; and (e) to determine the contributions of sets of perceived macroeconomic conditions, perceived institutional factors and perceived social conditions to the prediction of wellbeing over and above the contribution of demographics. Results indicated a high level of personal wellbeing and the PWI demonstrated good psychometric properties. In particular, the sample reported very high satisfaction with religiosity. The PWI full score narrowly exceeded the normative range for non-Western countries and was within the narrow band predicted by the ‘Theory of Subjective Wellbeing Homeostasis’. Sets of perceived macroeconomic conditions, institutional factors and social conditions added incrementally to the prediction of wellbeing over and above demographics, suggesting that current attempts inherent in the MoU to stem abuse and improve conditions for Indonesian labour migrants might have benefits to subjective wellbeing in this migration context in the future.