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This article examines structural change tests based on generalized empirical likelihood methods in the time series context, allowing for dependent data. Standard structural change tests for the Generalized method of moments (GMM) are adapted to the generalized empirical likelihood (GEL) context. We show that when moment conditions are properly smoothed, these test statistics converge to the same asymptotic distribution as in the GMM, in cases with known and unknown breakpoints. New test statistics specific to GEL methods, and that are robust to weak identification, are also introduced. A simulation study examines the small sample properties of the tests and reveals that GEL-based robust tests performed well, both in terms of the presence and location of a structural change and in terms of the nature of identification. 相似文献
594.
Thais França Filipa Godinho Beatriz Padilla Mara Vicente Lígia Amâncio Ana Fernandes 《Gender, Work and Organization》2023,30(1):35-51
The outbreak of the COVID-19 pandemic has made explicit the burden of care shouldered by academic mothers, in addition to juggling their scholarly commitments. Although discussions are abundant on the impact of caring responsibilities on the careers of women academics, neoliberal academia continues to minimize such struggles. Despite the disruptions to family routines caused by the health crisis, academic institutions have expected academic mothers and fathers to continue undertaking their professional responsibilities at the same level as before, disregarding their parenting demands. This paper contributes to the research on parenthood in academia by looking at how, throughout the pandemic, academic parents have negotiated the tensions between parenthood and academic demands, and by investigating the strategies they use to confront neoliberal culture of academic performativity, even amid the health crisis. The paper engages with the “space invaders” concept used by Puwar (2004) to analyze the “hypervisibility” of academic mothers' and fathers' “bodies out of place” during the pandemic, and to investigate their “renegade acts” against the uncaring attitudes of their institutions. Evidence is drawn from a qualitative study conducted during December 2020 and January 2021 among scholars affiliated to Portuguese academic institutions: 17 in-depth interviews conducted with women, and two mixed-gender focus groups. Our results research reveal how the experiences of academic mothers and fathers were not uniform during the pandemic. In addition, it shows how, despite their commitment to their academic responsibilities, these parents have crafted various resistance strategies to confront the institutional pressure to continue maintain their working routines, and instead positioning themselves as “more than just academics.” 相似文献
595.
Nilay Kılınç 《全球网;跨国事务杂志》2023,23(1):218-233
The paper explores the multiple ways in which visits affect the understanding of home for the Turkish–German second generation who have relocated to Turkey. Based on thematic–narrative analysis of 116 life-story interviews with second-generation ‘returnees’ in five regions of Turkey, three types of visits are identified: (i) family visits to Turkey whilst growing up in Germany; (ii) visits to Germany after the second generation has ‘returned’ to Turkey; (iii) visits to Turkey by the second generation's Germany-residing relatives and friends. Each type has different meanings for the visitors and the visited, creating fluid reflections on the meaning of home, which, especially for the second-generation ‘returnees’, tends to become fractured. Constantly comparing their two home(-land)s since childhood, they often simultaneously feel both ‘here’ and ‘there’ as a result of changing attachments and a mix of positive and negative experiences in both locales with their families, friends and the dominant others. 相似文献
596.
Jean‐Olivier Hairault Thepthida Sopraseuth Franois Langot 《Journal of the European Economic Association》2010,8(5):1034-1076
This paper presents empirical evidence and a theoretical foundation in favor of the view that the retirement age decision affects older workers' employment prior to retirement. To the extent that there are search frictions on the labor market, the return on jobs is determined by their expected duration: The time to retirement is then key to understanding older workers' employment. Countries with a retirement age of 60 are indeed characterized by lower employment rates for workers aged 55–59. Based on the French Labor Force Survey, we show that the likelihood of employment is significantly affected by the distance to retirement, in addition to age and other relevant variables. We then extend McCall's job search model by explicitly integrating life‐cycle features with the retirement decision. Using simulations, we show that the distance effect in interaction with the generosity of unemployment benefits and the depressed demand for older workers explains the low rate of employment just before the eligibility age for the Social Security pension. Finally, we show that implementing actuarially fair schemes not only extends the retirement age, but also encourages a more intensive job search by older unemployed workers. (JEL: J22, J26, H55) 相似文献
597.
Arzu Çalişkan Sari Özden Yalçinkaya Alkar 《International migration (Geneva, Switzerland)》2023,61(4):257-271
Turkey is the country with the highest Syrian refugee population hosted in the world. Social acceptance of immigrants by the local community is as important as the social cohesion of immigrants regarding the social integration process. The aim of the current study was to examine the role of social contact, intercultural sensitivity, intergroup anxiety, gender, age, education, abroad experience and city on attitudes of Turkish local society towards Syrians. In this regard, data were collected from 207 local community members living in Ankara and Adana provinces of Turkey. According to the analysis, qualitative social contact, intercultural sensitivity and intergroup anxiety predicted the attitudes of the local community towards Syrians. In addition, intergroup anxiety had a mediating role between qualitative social contact, intercultural sensitivity and attitudes towards Syrians. When close social contact and intercultural sensitivity of Turkish local society increase, intergroup anxiety decreases and it increases positive attitudes towards Syrians. Lastly, while there was no gender difference in attitude towards Syrians, females were higher in intercultural sensitivity than males. 相似文献
598.
Stefan Englert François Mercier Elizabeth A. Pilling Victoria Homer Christina Habermehl Stefan Zimmermann Natalia Kan-Dobrosky 《Pharmaceutical statistics》2023,22(5):921-937
The addendum of the ICH E9 guideline on the statistical principles for clinical trials introduced the estimand framework. The framework is designed to strengthen the dialog between different stakeholders, to introduce greater clarity in the clinical trial objectives and to provide alignment between the estimand and statistical analysis. Estimand framework related publications thus far have mainly focused on randomized clinical trials. The intention of the Early Development Estimand Nexus (EDEN), a task force of the cross-industry Oncology Estimand Working Group ( www.oncoestimand.org ), is to apply it to single arms Phase 1b or Phase 2 trials designed to detect a treatment-related efficacy signal, typically measured by objective response rate. Key recommendations regarding the estimand attributes include that in a single arm early clinical trial, the treatment attribute should start when the first dose is received by the participant. Focusing on the estimation of an absolute effect, the population-level summary measure should reflect only the property used for the estimation. Another major component introduced in the ICH E9 addendum is the definition of intercurrent events and the associated possible ways to handle them. Different strategies reflect different clinical questions of interest that can be answered based on the journeys an individual subject can take during a trial. We provide detailed strategy recommendations for intercurrent events typically seen in early-stage oncology. We highlight where implicit assumptions should be made transparent as whenever follow-up is suspended, a while-on-treatment strategy is implied. 相似文献
599.
One of the more important aspects of French labour market changes since the mid-1970s is the growth of temporary work; fixed-term contracts and interim contracts. With a survey of French literature since the early 1980s, this article analyses explanatory factors of temporary work: macroeconomic factors: institutional framework, workforce supply to user firms, economic fluctuations; microeconomic factors: firm/ plant characteristics, economic and social firm strategies. Models of firms supplying temporary jobs are presented. 相似文献
600.
Franoise Forges JeanFranois Mertens Rajiv Vohra 《Econometrica : journal of the Econometric Society》2002,70(5):1865-1892
In a differential information economy with quasi–linear utilities, monetary transfers facilitate the fulfillment of incentive compatibility constraints: the associated ex ante core is generically nonempty. However, we exhibit a well–behaved exchange economy in which this core is empty, even if goods are allocated through random mechanisms. 相似文献