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排序方式: 共有261条查询结果,搜索用时 155 毫秒
1.
樊宏 《数量经济技术经济研究》2007,24(2):54-63,81
本文运用33家上市公司面板数据和DEA方法的改进模型,从投入产出结合角度对我国2000-2004年间钢铁、汽车、房地产三大行业的运行效率进行实证研究,建立了运行效率评价模型(G0)及相应投影模型和评价指标体系;计算模型,求出各行业样本公司每年的运行效率指数、投影数据并推算出行业运行效率指数等其他相关数据,定量分析5年间三大行业运行效率的变化趋势,并进行比较研究,得出与事实相吻合的七个结论。 相似文献
2.
论GIS在社会经济领域中的运用 总被引:2,自引:0,他引:2
曾庆伟 《中南财经政法大学学报》2005,(3):23-27
地理信息系统是一种新兴的技术工具,它不仅被应用在现代测绘、军事国防、野外数据采集等自然科学方面,而且被广泛应用在社会经济领域中,在管理和决策中具有重要的作用.随着人类获取空间数据能力的不断提高和信息技术的发展,地理信息系统的应用将提升到一个新的深度和广度,它将在国民经济信息化中发挥重要的作用.本文介绍地理信息系统的基本概念及其在经济、管理、法律等领域中的应用实例,着重强调在社会经济领域中开展地理信息系统应用研究的意义. 相似文献
3.
从CNKI数据库收录的2000—2018年文献中,筛选出2148篇"乡村教师队伍建设"领域相关文献,利用CiteSpace和SA-TI3.1软件,对样本文献外部特征、关键词共现、知识演进趋势与热点前沿展开知识图谱分析。首先,展示了乡村教师队伍建设研究现状,梳理了发展动态。其次,划分了"科学发展观""教师教育""特岗教师"和"义务教育管理体制"四大热点研究领域。在此基础上将乡村教师队伍建设研究分为3个演进阶段,并总结出"农村小规模学校""乡村教师专业发展""特岗教师"和"教师流动"四个方向为该领域的前沿热点。最后,分别从公费师范生、基础设施建设和乡村教师的幸福感等方面获得了一些启示。 相似文献
4.
应用现场总线技术设计远程供水系统 总被引:2,自引:1,他引:2
针对远程供水控制要求,提出采用PROFIBUS现场总线技术,组成分布式测控网络的设计方法,本系统可以实现对井群的远程控制和供水的智能调度,各个控制站之间可以方便地进行信息传输,能够提高水泵的运行效率,具有操作方便,可靠性强,监控及时准确等优点,大大提高了远程供水的自动化程度和供水质量,实现了城市供水的智能监控和科学管理。 相似文献
5.
Tim Brailsford Richard Heaney Jing Shi 《International Review of Financial Analysis》2004,13(2):119-132
This paper analyses the time series behaviour of the initial public offering (IPO) market using an equilibrium model of demand and supply that incorporates the number of new issues, average underpricing, and general market conditions. Model predictions include the existence of serial correlation in both the number of new issues and the average level of underpricing, as well as interactions between these variables and the impact of general market conditions. The model is tested using 40 years of monthly IPO data. The empirical results are generally consistent with predictions. 相似文献
6.
Consumer sorting and hedonic valuation of wine attributes: exploiting data from a field experiment 下载免费PDF全文
Christopher R. Gustafson Travis J. Lybbert Daniel A. Sumner 《Agricultural Economics》2016,47(1):91-103
This article uses a novel experimental approach to measure consumer willingness to pay (WTP) for wine attributes. We invited customers of a local supermarket who had selected a bottle of wine to purchase to participate in a valuation experiment. Integrating their original wine choice into the experiment, each participant evaluated six alternative wines, generating a rich set of data on willingness to pay and consumer characteristics. The data from the experiment allow us to compare standard shelf price‐based wine attribute valuation estimates with estimates using WTP data and an increasing amount of information about individual consumers. The full model employs individual fixed effects to estimate WTP parameters without bias from consumer sorting or supply side influences. Our WTP estimates for wine attributes differ markedly from previous attribute value estimates. Consumers in our sample display clear and stable preferences for wine varieties, but less clear preferences for appellations. Our results suggest caution is needed in using market prices to estimate parameters of the consumer valuation function for product attributes. 相似文献
7.
《Journal of Retailing and Consumer Services》2014,21(5):676-684
We used two eye-tracking field experiments to investigate the extent to which in-store signage is used during navigation and decision making, and how the viewing of signage influences customers’ visual attention and choice behavior. One hundred and seventy-five customers at a grocery store were exposed to signage stimuli while carrying out predefined shopping tasks. Experiment 1 shows that attention toward signage is affected by customers’ levels of store familiarity and in-store search stage (navigation vs. decision making). Experiment 2 demonstrates that signage has a considerable impact on the direction and magnitude of customers’ visual attention during decision making. 相似文献
8.
Maleke Fourati 《Journal of Comparative Economics》2018,46(4):1194-1214
I design and conduct a survey with an embedded lab-in-the-field experiment to test whether envy triggers popular support for the Islamic revival using a nationally representative sample of 600 Tunisians. Individuals exposed to high inequality may feel envious if they perceive that the success of others is granted rather than earned. Thus, envious individuals may be motivated to engage in religious and political activities to cope with their feelings. I trigger the sentiment of envy with a 2 ?×? 2 design by interacting a priming video and low stakes. I find that individuals in the envy treatment donate a larger proportion of their endowment to a politically involved religious charity, my measure of support for the Islamic revival. Overall, my experimental findings, consistent with survey data, confirm the idea that envy is an important determinant of popular support for the Islamic revival, even after controlling for religiosity. 相似文献
9.
《Scandinavian Journal of Management》2020,36(4):101128
Institutional fields are not static, they undergo times of fragmentation and times of settlement. Neo-institutional research has long explained the settlement of fields as either the effect of political manoeuvring of actors, or of discursive activity influencing cultural codes, narratives and symbols. But can these processes really be considered in isolation? In this paper, we propose to adopt a comprehensive view on fields’ dynamics, one that embraces the interaction of political and discursive manoeuvring to explain how fragmented fields manage to settle. To do so, we build on the Gramscian concept of hegemonic practices as discursive and political processes that integrate cultural equivalence among actors with political alliances based on aligned interests. Hegemonic practices align actors in a new historical bloc (a new settlement). Through this lens, we interpret the case of the Italian State steel privatization (1984–1995) and propose a process model explaining what yields fields’ dynamics from fragmentation to settlement. The model highlights the action of diffused agency in field dynamics, thus overcoming the obsolete challenger/incumbent view, and the need of becoming a historical bloc for alliances to stabilize a field. 相似文献
10.
Recent theoretical and empirical studies have explored the effect of group membership and identity on individual decision-making. This line of research highlights that economic models focusing on the individual as the sole entity in the decision-making environment potentially miss critical features. This study takes this literature in a new direction by overlaying a field experiment onto a setting where groups have arisen naturally. Our experimental laboratory is large open air markets, where we are able to examine the effects of group membership on seller׳s collusive behavior as measured by prices and surplus allocations. This permits us to explore strategic implications of group composition. Empirical results illustrate the importance of group composition on pricing decisions, and show that deviations from Nash equilibrium are crucially related to group membership. 相似文献