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101.
Policy Determinants of School Outcomes under Model Uncertainty: Evidence from South Africa 下载免费PDF全文
Fabrice Murtin Thomas Laurent Geoff Barnard Dean Janse van Rensburg Vijay Reddy George Frempong Lolita Winnaar 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2015,83(3):317-334
In this paper, we assess the determinants of secondary school outcomes in South Africa. We use Bayesian model averaging techniques to account for uncertainty in the set of underlying factors that are chosen among a very large pool of explanatory variables in order to identify the subset of explanatory variables most strongly associated with the dependent variable. Our analysis indicates that the socio‐economic background of pupils, demographic characteristics such as population groups (Black and White), as well as geographical locations account for a significant variation in pupils’ achievement levels. We also find that the most robust policy determinants of pupils’ test scores are the availability of a library at school, the use of IT in the classroom as well as school climate. 相似文献
102.
Past research on B2C relationships has typically focused on unidimensional constructs of satisfaction, trust, and commitment, ignoring underlying psychological dimensions. Although some studies have examined cognitive and affective dimensions of these relational constructs, dual sequential effects in relationship formation have not been investigated. This study proposes and finds (in the context of online group chat) that parallel cognitive and affective sequences of relationship formation take place, thus expanding scholarly understanding of underlying psychological processes and offering marketing practitioners two different ways to build relationships with consumers. The proposed dual‐sequence relational framework further advances theory by shedding light on counterintuitive findings in past research. The study also supports the proposed moderating effects of employee communication style, such that sequential effects of cognitive (affective) relational constructs are stronger with a task‐oriented (socially oriented) employee, thus offering insights to practitioners in hiring and training employees to match specific organizational goals for building relationships with consumers. © 2009 Wiley Periodicals, Inc. 相似文献
103.
Current discussions of climate change are overly focused on the science underpinning environmental impact, with little attention to socioeconomic consequences. The economics of environmental change in particular is insufficiently informed by the lessons that past experiences can yield. Drawing on case studies from Europe and Asia, this special issue underlines the importance of historical context, as well as markets, institutions, technology, and the role of international trade in understanding how economic systems have responded to environmental changes. Past economies have responded dynamically to environmental change rather than simply constrained deterministically by the climatic and ecological events that have engulfed them. 相似文献
104.
105.
工程中的伦理问题及工程师的责任 总被引:1,自引:0,他引:1
赵迎欢 《沈阳工程学院学报(社会科学版)》2010,6(3):321-324
工程中的伦理问题在工程活动的过程中表现为设计的伦理问题、实施的伦理问题和导致人工物(如工厂、民用工程建筑物及基础设施)和环境之间的关系问题。设计是工程的起始阶段并且是工程过程特性的重要体现。工程设计既限制又使得人类的活动被介入到世界和自然过程创造人工物的实施阶段。工程的结果拓展了人类的能力并调节了人类行动的许多方面。因此,工程被解释为引发在物理世界和人们活动世界中的具有因果关联和象征性属性的人工现实。工程人工物或者基础设施形塑社会和自然环境,它们因此也能够被评估。工程师的责任有设计责任、关照工程成果的责任及维护社会和自然环境的责任三种类型。 相似文献
106.
Frederick van der Ploeg 《International Economics and Economic Policy》2011,8(2):121-138
In this paper we revisit the Dutch disease paying particular attention to the role of specific factors of production and capital
stock dynamics. The main insight is that if the natural resource rich windfall is substantial but not large enough for the
country to become a rentier, capital goods must be produced at home and adjustment to natural resource windfall takes time.
It takes time to build this home-grown capital. Specific factors are crucial to explain the dynamic responses of the real
exchange rate, capital intensities and wages in response to a natural resource windfall. If a country is small and the windfall
is large, it may be able to import capital and migrant labour in which case the Dutch disease can be avoided. 相似文献
107.
Namibia has a long history of providing a universal and non-contributory old age pension, child grants using means testing and quasi-conditionalities, and other cash transfers. Multivariate analysis presented in this paper confirms that these transfers play an important role in alleviating poverty, especially for the very poor. The poverty-reducing effects of the child grants are likely to increase further as access is being rapidly expanded. However, the impact in terms of reducing Namibia's extremely high inequality is limited. The targeting of the cash transfers towards the poorest groups takes place through two main channels. For the child grant, targeting occurs as a result of the orphan status eligibility criteria, as orphans are over-represented in lower-income households. For the universal social pension, it appears that some of the relatively less poor do not receive it even if they are eligible. Means testing of child grants appears ineffective, even without considering administrative costs. 相似文献
108.
Entrepreneurship,export orientation,and economic growth 总被引:1,自引:0,他引:1
In this paper the relationship between a country’s prevalence of new ventures and its rate of economic growth is investigated,
while taking into account new ventures’ export orientation. It is generally acknowledged that new venture creation as well
as export activity may both be important strategies for achieving national economic growth. However, to our knowledge no attempt
has been made to investigate empirically the role of export-driven new ventures in economic growth. We focus on the national
level and use data for a sample of 34 countries over the period 2002–2008. Our results suggest that, on top of a positive
relation between entrepreneurial activity in general and subsequent macroeconomic growth, there is an additional positive
effect of export-oriented early-stage entrepreneurship in higher-income countries. However, there is no such additional effect
in lower-income countries. 相似文献
109.
110.
This article researches how a corporate code of ethics (CCE) implemented in local government X has influenced the behavior of its employees, middle managers, and managers. Metaphors from the existing and desired CCE elicited by these three groups provided information on how to improve the effectiveness of the CCE. This method proved to be very fruitful. It appeared that continuous systematic attention needed to be paid to the CCE after the CCE had been implemented, particularly by management. Initiatives from management to start discussions about relevant questions of integrity appeared to be also necessary to make the topic a “normal” topic which employees were no longer afraid to discuss. In this way, the possibility could be created to develop collectively a “practical” frame of reference concerning relevant questions of integrity that would help employees to make decisions in difficult situations during their work in the future. 相似文献