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841.
在采用关联度及格兰杰因果关系检验来验证信息产业与三大产业之间的关联性的基础上,建立中性技术进步假设下修正的柯布—道格拉斯生产函数,测量信息产业对河北省三大产业的间接贡献度,结果表明:河北省信息产业与服务业有较强的关联度,并且互为发展的因果关系,但与农业的关联水平较低。河北省发展信息产业应依托产业集聚度,充分发挥信息产业集聚效应,加强信息人才培养。 相似文献
842.
843.
By considering a social trade-off between targeting the exchange rate and minimizing intervention costs, nonlinear exchange rate dynamics can be captured by a structural threshold model. This article provides a theory-based empirical exchange rate model and shows how to put the model into an empirical investigation. To estimate the structural threshold model, we propose a two-step procedure which separately estimates the permanent and temporary fundamentals of the foreign exchange market. A demonstration of our approach is applied to 1981Q3-2008Q3 Taiwan’s foreign exchange market, with a brief review of its monetary policies and central bank given prior. Estimation results are consistent with theoretical predictions and many intervention operations of Taiwan’s central bank are successfully identified. 相似文献
844.
This study examines the relative competitiveness of online and physical bookstores. Online bookstores have the advantage of being able to provide a wide range of books while minimizing inventory costs, but customers must wait several days for their books. Physical bookstores allow consumers to immediately obtain their books, but consumers must pay a transportation cost to visit the store. We can find the condition such that online bookstores charge a lower price than physical bookstores and take a larger market share, and attract a higher proportion of consumers who prefer variety. The implication of the welfare analysis is also discussed. 相似文献
845.
846.
成果转化是技术创新的核心环节,是实现科技的经济功能的最好形式。市场机制对促进成果转化具有重要作用。本文分析了科技成果在转化过程中偏离市场导向的现状及原因,并在此基础上提出了完善市场机制加速科技成果转化的对策。 相似文献
847.
This study examines whether Australian financial reporting became more conservative over the period of 1993–2009. Unlike the United States and European evidence in Givoly and Hayn (2000) and Grambovas et al. (2006) , the Australian evidence is not consistent with the notion that conservatism has increased over time. The degree of conservatism fluctuates without any obvious trend over the 17‐year period, especially for the constant sample of firms appearing throughout the period. We also examine the impact of mandatory International Financial Reporting Standards (IFRS) adoption on accounting conservatism in Australia. Our evidence suggests the adoption of IFRS has led to a decrease in conditional conservatism (i.e. asymmetric timeliness). 相似文献
848.
This study examines the relationship between the extent of electronic procurement (e‐procurement) usage, measured in different dimensions on volume, diversity, breadth, and depth, and the performance gains with respect to operations and financial performance. A survey of companies in Singapore resulted in 141 usable responses for data analyses. Findings reveal that different dimensions of e‐procurement usage have different relationships with performance. 相似文献
849.
消费是经济增长的一个重要因素,对经济增长具有直接的拉动作用,同时对消费的调节也成为国家宏观调控的一个重要手段。本文以宁波市为例,选取了社会消费品零售总额与国内生产总值的数据进行协整分析,并进行了格兰杰因果分析,得出了二者之间存在长期均衡关系。 相似文献
850.
One important but unrealistic assumption in the simplified Alonso–Mills–Muth (AMM(0)) model is that the composite good is ubiquitous and thus there is zero shopping cost for residents. This paper assumes that the composite good is only sold by a monopoly vendor inside the city and hence a shopping cost is inevitable for residents. It is shown that the vendor will locate at the city boundary in equilibrium. In contrast to the symmetric land rent pattern in the AMM(0) model, the current AMM(k) model offers an asymmetric land rent pattern in equilibrium. Moreover, this paper shows that a rent-maximizing government either regulates the vendor to locate at the central business district (CBD) (when income is high) or does not enact any regulation (when income is low). 相似文献