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1.
社会发展进程中,自然和社会环境的重大改变会对人口数量和结构产生近期和远期效果,其对人口健康的影响效应则有更多证据。对重大社会环境事件的定义、基于重大社会环境事件的人口与健康研究的主要发现和存在问题进行了系统的梳理分析,并概要介绍了相关的研究,发现重大社会环境事件作为一种外生冲击和自然实验,为开展人口与健康的因果关系和相关关系等都提供了独特的研究机会和范式,有效弥补了已有人口与健康研究方法学的不足,也使得我们可以更加理性看待重大社会环境事件对人口与健康影响的"双面效应"。在全球化视角下加强基于重大社会环境事件的人口与健康研究,将为制定促进人口健康与社会政策提供重要参考,并以此为线索,可进一步拓展重大社会环境事件与人口数量、结构、分布、变动等人口效应的影响,进而建立事件人口学的研究体系、方法和内容。  相似文献   
2.
合理的技术价值界限是理性决策的依据。对于复杂的新技术,尤其是后果不确定技术,不同主体间价值认知分歧直接导致价值界限不清,成为理性决策的难点。以保罗的实用对话伦理理论为认知路径,讨论此类技术价值分界方法。通过比较功利主义、自由至上主义在价值认识和判断上的后果差异,揭示后果不确定技术价值在不同主体间漂移的原因,探索在不同价值主体间产生伦理维度的技术价值界限方法。在开放式语义环境中,不同价值主体之间的共识即是技术价值的伦理界限,可为决策公正提供伦理支撑,避免因主体缺失而导致在应用中发生技术价值过度偏失和决策失当,为我国发展诸如转基因水稻等后果不确定技术决策提供可操作性的方法论借鉴。  相似文献   
3.
ABSTRACT

The food and beverage sector of the hospitality industry is known for being an emotionally labor-intensive environment. The events that transpire over the course of a shift lead to various emotions, which ultimately dictate the behaviors of the employees working in this industry. Of particular interest to this study was the interplay between environmental antecedents (power and distributive justice) and their influence on a negative emotion (anger) and a positive emotion (affective organizational commitment). Additionally, this study sought to understand how anger and affective organizational commitment influenced positive (organizational citizenship behavior) and negative (counterproductive work behavior) workplace behaviors using the lens of the affective events theory. The results of this study revealed that anger had the strongest effect on counterproductive work behavior and that all of the relationships were significant except from anger to affective organizational commitment and affective organizational commitment to counterproductive work behavior.  相似文献   
4.
Drawing from dynamic capability, institutional, nonmarket strategy, and social-network literatures, we detail wholly owned subsidiary (WOFSs) relation-based strategies (RBSs). We explain how deploying RBSs with key nonmarket and market actors will create competitive advantages for WOFSs operating in volatile emerging market environments. We posit that dynamic capabilities will drive the deployment of RBSs by WOFSs, and argue that the positive relationship between dynamic capabilities and RBS deployment will strengthen as perceived institutional uncertainty increases. We further suggest that the greater the strength and frequency of RBS deployment, the more likely that a WOFS will establish a combination of nonmarket-based and market-based embedded assets. Also, our theory proposes that greater integration of nonmarket-based and market-based assets will enhance WOFS financial performance outcomes. Implications for future research are discussed.  相似文献   
5.
Market prices are traditionally sampled in fixed time intervals to form time series. Directional change (DC) is an alternative approach to record price movements. Instead of sampling at fixed intervals, DC is data driven: price changes dictate when a price is recorded. DC provides us with a complementary way to extract information from data. It allows us to observe features that may not be recognized in time series. The argument is that time series and DC-based analysis complement each other. With data sampled at irregular time intervals in DC, however, some of the time series indicators cannot be used in DC-based analysis. For example, returns must be time adjusted and volatility must be amended accordingly. A major objective of this paper is to introduce indicators for profiling markets under DC. We analyse empirical high-frequency data on major equities traded on the UK stock market, and through DC profiling extract information complementary to features observed through time series profiling.  相似文献   
6.
The relative importance of permanent versus cyclical shocks to GDP has been found to depend on the presence or absence of a single break in mean growth. We estimate unobserved components models conditional on a trend break having occurred in any specified quarter and use the Bayesian model averaging to combine the conditional estimates. We estimate a break occurred around 2006:1. Allowing for a break significantly reduces estimates of trend variance. However, enough spread remains in the posterior distribution to indicate that available data does not definitively settle the question of the relative importance of trend versus cycle.  相似文献   
7.
The Algarve, the most renowned Portuguese destination, is usually associated with its main tourist product, sun and beach. In 2007, the Portuguese government launched a program of events called Allgarve, intending to reposition the destination image. Conceived from the tourists' perspective, the Allgarve program was not initially welcomed by residents. Based on data from 384 questionnaires applied to residents in the region, this study examines the dimensions of the Algarve image and the Allgarve image, and shows how participation in Allgarve events is affecting both. The conclusions from this study reinforce the relevance of residents' participation in events in supporting repositioning strategies of a destination image.  相似文献   
8.
《南方经济》2013,(12):83-85
In the real world, an investor is usually not sure about when he or she will exit investment. She can only make estimation prior. With the growth of the scale of open - end funds which can be subscribed and redeemed at any time. Investors began to pay more attention on problems such as whether the fee is reasonable, the payment can encourage the agent or not. Others would consider if the portfolio that the agent chooses is the best one. This paper considers the principal - agent problem with uncertain exit - time under two cases: the action of the agent is observable and unobservable. We derive close - form expressions of the optimal portfolio and the best fee. Finally an empirical analysis is given based on the data of some open - end funds in China.  相似文献   
9.
We develop and present an ethics case dealing with an uncertain tax position. The case can be used to assess professional ethics as part of an assurance-of-learning (AOL) plan as well as a component of a course grade. We present data on student performance on this case over a 5-year period. Students consider existing ethical frameworks to identify and frame the potential ethical “dilemmas” they might face in addressing whether to countenance a client’s suggested treatment and disclosure of an uncertain tax position. In addition, students evaluate the AICPA guidance and U.S. Treasury standards on taking and reporting uncertain tax positions in the tax return and the FASB and PCAOB standards on reporting and auditing uncertain tax positions in the financial statements. The case allows faculty to assess students’ ability to frame potential ethical dilemmas when clients engage in aggressive tax behavior, to recognize with whom and with what professional reference documents they should consult when an uncertain tax position arises, and to choose among alternative actions when faced with client/preparer conflicts.  相似文献   
10.
To develop business, managers need to understand the dynamic nature of the business networks in which their company operates. Qualitative process research offers a promising methodology to deliver that understanding but does not yet provide elaborate analysis methods applicable to business network research. We therefore introduce an event based analysis strategy developed to study processes in business networks. Employing a longitudinal case on a paper trader's internationalization process in a network context as an experimental arena, we propose three tools for process analysis. First, a research steering wheel that combines both retrospective and real time event analysis; second, an analytical scheme comprising influencing factors, critical events and consequent change; and third, an event trajectory that unfolds process patterns. The proposed strategy offers a viable alternative to social network analysis, network pictures and narrative analysis with which to study network change and dynamics. Elaborating events from a moderate constructivist perspective, it enables the researcher to trace and understand processes beyond mere structural change, and to capture their evolution in a multilayered network context. We evaluate the strengths and weaknesses of the methodology and discuss its relevance for research and practice.  相似文献   
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