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61.
Sociological interest in the implementation of policy generally focuses on the ways a single stream of policy creates a set of measurable consequences either for parents or children. This article takes an ethnographic approach to the study of conflicting policy mandates that collide in the lives of families moving from welfare to work at the same time that schools are implementing high stakes tests and the end of social promotion. We show that these two policies make contradictory demands on parents, to the potential detriment of children. Ethnographic research reveals the ways in which multiple and incompatible forms of policy impact poor families, putting them in the unhappy position of choosing between economic stability or mobility and children's educational performance. 相似文献
62.
罗筠 《暨南学报(哲学社会科学版)》2011,33(1)
当下中国部分县域地区政治权力生态恶化的客观现实,引起了国内学界的高度关注,学者们在对现实状况进行分析的基础上运用各种社会科学的方法,尝试从不同的角度去关注县域政治权力生态恶化问题产生的根源.在大量的解释模型中,现代国家构建是一个重要的研究视角,认此为切入点,探析县域政治权力生态恶化的深层次原因,结果表明:国家权力在某些公共领域的不适当退出,以及国家能力的不足,导致了县域政治的衰败和紊乱. 相似文献
63.
A fundamental question about human behavior is whether fertility responds to disease risk. The standard economic theory of household fertility decision-making generates ambiguous predictions, and the response has large implications for human welfare. We examine the fertility response to the HIV/AIDS pandemic using national household survey data from 14 sub-Saharan African countries. Instrumental variable (IV) estimates using distance to the origin of the pandemic suggest that HIV/AIDS has increased the total fertility rate (TFR) and the number of surviving children. These results rekindle the debate about the fertility response to disease risk, particularly the HIV/AIDS pandemic, and highlight the question of whether the HIV/AIDS pandemic has reduced GDP per capita. 相似文献
64.
Consider a sequence of independent observations which change their marginal distribution at most once somewhere in the sequence and one is not certain where the change has occurred. One would be interested in detecting the change and determining the two distributions which would describe the sequence. On the other hand if no change had occurred, one would want to know the common distribution of the observations. This study develops a Bayesian test for detecting a switch from one linear model to another. The test is based on the marginal posterior mass function of the switch point and the posterior probability of a stable model. This test and an informal sequential procedure of Smith are illustrated with data generated from an unstable linear regression model, which changes the linear relationship between the dependent and independent variables 相似文献
65.
Lesion count observed on brain magnetic resonance imaging scan is a common end point in phase 2 clinical trials evaluating therapeutic treatment in relapsing remitting multiple sclerosis (MS). This paper compares the performances of Poisson, zero‐inflated poisson (ZIP), negative binomial (NB), and zero‐inflated NB (ZINB) mixed‐effects regression models in fitting lesion count data in a clinical trial evaluating the efficacy and safety of fingolimod in comparison with placebo, in MS. The NB and ZINB models prove to be superior to the Poisson and ZIP models. We discuss the advantages and limitations of zero‐inflated models in the context of MS treatment. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
66.
We are concerned with a fair division problem in which the indivisible goods to be distributed among a finite number of individuals have divisible bads associated with them. The problem is formulated and analyzed in terms of the housemates problem. We present an efficient procedure that decides whether an envy-free solution exists, and if so, finds one of them; otherwise finds a solution such that each envious housemate is assigned a room whose rent is zero. 相似文献
67.
Yoo-Mi Chin 《Review of Economics of the Household》2008,6(1):47-64
Becker/Mincer theory of home production was the first to systematically incorporate time in economic models, and the theory
generated much empirical research in a wide variety of areas. However, the direct applications of Becker/Mincer home production
theory in empirical research are scarce because of the innate immeasurability of commodities. In this paper, I recover unobservable
commodities from the cost functions under certain assumptions about production technologies. Then, using the Philippine Bukidnon
panel study of rural households, I test for the core of the Becker model: negative substitution effects between a time-intensive
and a goods-intensive commodity arising from wage increases. The estimates of the structural form as well as the reduced form
relative demand between childcare, which represents a time-intensive commodity, and meal consumption, which represents a goods-intensive
commodity, support the major predictions of the model.
相似文献
Yoo-Mi ChinEmail: |
68.
研究发现对于需要保壳的上市公司,仅有7%靠政府补助保壳成功,政府补助没有起到雪中送炭的作用,不具有保壳动机;而对于不需要保壳的上市公司,上期盈利能力越高的,本期获得的补助越少,说明政府补助没有起到锦上添花的作用,不具有培优动机. 相似文献
69.
韩世远 《暨南学报(哲学社会科学版)》2011,(2)
《合同法》无疑是目前我国民事领域中最为成功的立法,该法在诸多方面受到了联合国《国际货物销售合同公约》的影响。比较《合同法》与《公约》,在合同的订立、合同解除、违约责任与免责、买卖合同等方面,既可以看出前者对于后者的继受,也可以看出二者之间存在的若干差异。 相似文献
70.
姜红 《暨南学报(哲学社会科学版)》2011,(2)
海峡两岸民商事司法协助迄今已历经分别立法模式和民间协议模式。《海峡两岸共同打击犯罪及司法互助协议》和《海峡两岸经济合作框架协议》的签署为海峡两岸民商事司法协助模式的发展提供了新的契机。在海峡两岸政治、经济、文化等因素的共同作用下,民间协议模式在较长时间里继续存在,官方协议模式及统一立法模式将在条件成就时生成。 相似文献