The International Multidimensional Fertility Index: The European Case

We propose an index to measure the degree of ability or desire of the population in a given country to have children, via an analysis of certain factors that may have a positive or negative influence on the fertility rate of that country. Using data for the twenty-eight countries of the European Union, and Principal Components Analysis, we construct the International Multidimensional Fertility Index as a combination of four dimensions: (1) Economy and family, (2) Attitudes and habits, (3) Work–Life Balance, and (4) Policy, along with nineteen distinct variables. We find that Denmark, the Netherlands, and Luxembourg are among the countries with the highest value of the index, and they also have high fertility rates within the EU. At the other end of the spectrum, Latvia, Cyprus, and Greece, are ranked in the last positions according to our index, countries that also present low values in their fertility rates. We also find a positive correlation between the value of our index and country fertility rates, an indication that our index may be capturing country differences in the conditions for bearing children, with higher values of the index indicating better conditions for childbirth and childrearing. To the extent that international data becomes available, our methodology will allow for the construction of international rankings, helpful in identifying cross-country differences in the conditions for fertility.     

The effect of verification bias on the comparison of predictive values of two binary diagnostic tests

The comparison of the accuracy of two binary diagnostic tests has traditionally required knowledge of the disease status in all of the patients in the sample via the application of a gold standard. In practice, the gold standard is not always applied to all patients in a sample, and the problem of partial verification of the disease arises. The accuracy of a binary diagnostic test can be measured in terms of positive and negative predictive values, which represent the accuracy of a diagnostic test when it is applied to a cohort of patients. In this paper, we deduce the maximum likelihood estimators of predictive values (PVs) of two binary diagnostic tests, and the hypothesis tests to compare these measures when, in the presence of partial disease verification, the verification process only depends on the results of the two diagnostic tests. The effect of verification bias on the naïve estimators of PVs of two diagnostic tests is studied, and simulation experiments are performed in order to investigate the small sample behaviour of hypothesis tests. The hypothesis tests which we have deduced can be applied when all of the patients are verified with the gold standard. The results obtained have been applied to the diagnosis of coronary stenosis.     

A Central Limit Theorem in Non‐parametric Regression with Truncated,Censored and Dependent Data

On the basis of the idea of the Nadaraya–Watson (NW) kernel smoother and the technique of the local linear (LL) smoother, we construct the NW and LL estimators of conditional mean functions and their derivatives for a left‐truncated and right‐censored model. The target function includes the regression function, the conditional moment and the conditional distribution function as special cases. It is assumed that the lifetime observations with covariates form a stationary α‐mixing sequence. Asymptotic normality of the estimators is established. Finite sample behaviour of the estimators is investigated via simulations. A real data illustration is included too.     

Comparison of the accuracy of multiple binary tests in the presence of partial disease verification

In the presence of partial disease verification, the comparison of the accuracy of binary diagnostic tests cannot be carried out through the paired comparison of the diagnostic tests applying McNemar's test, since for a subsample of patients the disease status is unknown. In this study, we have deduced the maximum likelihood estimators for the sensitivities and specificities of multiple binary diagnostic tests and we have studied various joint hypothesis tests based on the chi-square distribution to compare simultaneously the accuracy of these binary diagnostic tests when for some patients in the sample the disease status is unknown. Simulation experiments were carried out to study the type I error and the power of each hypothesis test deduced. The results obtained were applied to the diagnosis of coronary stenosis.     

Family and community support among older Chilean adults: the importance of heterogeneous social support sources for quality of life

Family and community social networks act as social resources that promote well-being at advanced ages. In this study, we analyze the association between social support received from personal social networks (social support from various family members and friends) and community social networks (social support from neighbors and the neighborhood, age, ethnic, or religious group peers and formal social support networks) and quality of life (QoL) for a sample of older Chilean persons (n = 777). The results confirm that social support from family (partner, children, and extended family) and friends, integration in the community (neighbors) and social support from informal systems (social groups) are associated with QoL. Moreover, the model including both types of support explains 25.8% of variance in QoL. The results and their possible implications are discussed.     

Readiness for independent living of youth in residential childcare: A comparative study

Transition to adulthood is an accelerated and early process for care leavers that requires intensive preparation, training and support from child welfare services. This study aimed to explore the perceived readiness for independent living of a group of care-experienced young people preparing for leaving care in Spain and to compare it with the perceptions of their peers from the general population. A sample of 508 youth (50% women) aged 14–21 (M = 16.67; SD = 1.72) took part, of whom 279 were care experienced and 229 belonged to the general population in Spain. Participants' independent living skills, personal autonomy, self-efficacy and sociodemographic characteristics were assessed through an online survey using standardized instruments. Care-experienced young people displayed higher levels of life skills and autonomy in self-care, daily living at home and employment domains, but not related to making daily arrangements in their community. However, their educational level and self-efficacy levels were lower than in the comparison group. Work experience stood out as a significant predictor of care-experienced young people's life skills level. These findings support the importance of assessing life skills as an outcome of leaving care preparation services and providing care-experienced young people with real-life experiences to develop their life skills.     

Towards a parental muda for new Basque speakers: Assessing emotional factors and language ideologies

The concept of muda refers to how specific biographical moments can precipitate changes in the speaker's linguistic repertoire (Pujolar & Gonzàlez, 2012). In recent years, more inclusive or participatory approaches to intergenerational transmission in language revitalization contexts have been encouraging all parents, including those with low proficiency in the minority language, to participate in their child's language acquisition. This article examines a Basque‐ language campaign that instructs low‐proficiency parents to adopt child‐directed speech in Basque to mould affective orientations in the home environment. Drawing on a case study, I explore the complications of new speakerhood, especially the difficulties of bringing about a parental muda. I demonstrate how mudas are traversed by competing ideologies of language and language socialization. In disrupting monolingual ideologies, participatory approaches which aim at increasing the symbolic value of the language clash with the attitudes of speakers who view these mudas as inconsequential for achieving normalization.     

Occupational segregation by sexual orientation in the U.S.: exploring its economic effects on same-sex couples

Review of Economics of the Household - This paper examines the importance of the occupational sorting of individuals in same-sex couples in explaining the economic position of lesbian women and gay...