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11.
This article investigates the extent to which options on theAustralian Stock Price Index can be explained by parametricand nonparametric option pricing techniques. In particular,comparisons are made of out-of-sample option pricing performanceand hedging performance. The dataset differs from many of thoseused previously in the empirical options pricing literaturein that it consists of American options. In addition, a broaderspectrum of techniques are considered: a spline-based nonparametrictechnique is considered in addition to the standard kernel techniques,while the performance of a Heston stochastic volatility modelis also considered. Although some evidence is found of superiorperformance by nonparametric techniques for in-sample pricing,the parametric methods exhibit a markedly better ability toexplain future prices and show superior hedging performance.  相似文献   
12.
We re‐examine the benefits of using a broader set of research methods to address key questions associated with the resource‐based view (RBV) of the firm. In responding to Levitas and Chi, we consider how research inside organizations can complement and augment research relying on secondary data. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
13.
编辑有法,这是不容质疑的。编辑方法是编辑学理论的一个重要研究范畴。然而编辑学现状表明,我们对编辑方法论的研究缺乏应有的重视。编辑方法是反映编辑工作全过程中核心内容的方法。包括选题方法、组稿方法、审稿方法、加工方法和校对方法。在当今信息时代,编辑应将计算机技术的方法纳入到编辑方法之中。要有效实施方法还应遵循一些编辑方法的原则。  相似文献   
14.
Multinational companies face increasing risks arising from external risk factors, e.g. exchange rates, interest rates and commodity prices, which they have learned to hedge using derivatives. However, despite increasing disclosure requirements, a firm's net risk profile may not be transparent to shareholders. We develop the ‘Component Value‐at‐Risk (VaR)’ framework for companies to identify the multi‐dimensional downside risk profile as perceived by shareholders. This framework allows for decomposing downside risk into components that are attributable to each of the underlying risk factors. The firm can compare this perceived VaR, including its composition and dynamics, to an internal VaR based on net exposures as it is known to the company. Any differences may lead to surprises at times of earnings announcements and thus constitute a litigation threat to the firm. It may reduce this information asymmetry through targeted communication efforts.  相似文献   
15.
In the presented text the authors judge the importance of statistics in the monetary policy of the Czech National Bank (CNB) over the course of the economic transformation process, with particular consideration of changing statistical needs and the possibilities and limits of statistical data exploitation in the monetary analyses. The importance of statistics lies on the level of collection and processing of statistical information and on the level of use of statistical methods to analyse data. Since the start of the 1990s the requirements for statistics were significantly influenced by monetary policy. In the period 1990–1997, monetary targeting was the primary influential factor. Since 1998, the monetary policy is influenced by inflation targeting. Statistical priorities switched from monetary data to economy and financial market data. Much progress has been made in the use of statistical methods for analysing data. Statistics available at present cover the CNB's standard monetary-policy requirements and are on par with those in developed countries. Its further development will reflect the standard changes taking place in the more advanced countries.  相似文献   
16.
The purpose of this paper is to provide evidence that the debate between quantitative and qualitative is divisive and, hence, counterproductive for advancing the social and behavioral science field. We advocate that all graduate students learn to utilize and to appreciate both quantitative and qualitative research methodologies. As such, students will develop into pragmatist researchers who are able to utilize both quantitative and qualitative techniques when conducting research. We contend that the best way to accomplish this is by eliminating quantitative research methodology and qualitative research methodology courses from curricula and replacing these with research methodology courses at different levels that simultaneously teach both quantitative and qualitative techniques within a mixed methodological framework.An earlier version of this article received the 2003 Southwest Educational Research Association (SERA) Outstanding Paper Award.  相似文献   
17.
文章对大型混凝土现浇工程中给水管道预埋应注意的几个问题进行了详细的分析和总结,为推广应用混凝土现浇工程管道同步预埋提供了提高工程质量、加快施工进度的指导方法。  相似文献   
18.
基于异质性产品价格分解模型,运用联合国UN Comtrade 2003-2016年产品-目的国层面出口数据,考察中国OFDI影响本国出口的质量效应和成本效应。研究发现:中国OFDI显著提升了出口产品质量,并对出口产品成本产生降低作用。从目的国收入看,金融危机前,中国OFDI对出口质量的提升以及对出口产品成本的降低作用,主要通过对高收入和中高收入国家的投资实现;而金融危机后,则主要通过对中低收入国家的投资实现。从产品类型看,中国OFDI显著提高了差异性产品和中间产品的出口质量,并对两类产品的成本产生降低作用;但对同质性产品和最终产品,只对其出口产品成本存在显著降低作用,对出口质量的提升作用不显著。因此,以投资带动贸易仍然是推动中国外贸高质量发展的有效举措。  相似文献   
19.
目前,一些上市公司利用关联方交易操纵利润、粉饰会计报表,造成会计信息的严重失真,为此,规范关联交易定价政策、逐步减少现有可避免的关联交易、制止新的应避免的关联交易产生十分必要。  相似文献   
20.
首先采用以人口为权数的加权变异系数对地区间财力差异进行了度量.随后提出财力的初次分配和再分配的概念,检验了财力的初次分配中不同财政收入项目及财力的再分配中不同转移支付项目对财力不平等的贡献率.认为对财力差异起主要作用的是财力的初次分配即财政收入,起次要作用的是财力的再分配即中央转移支付,其中,将营业税划归地方税、税收返还等保持既得利益的转移支付是造成地区间财力差异的主要原因,并且随着经济的发展这将导致地区差距的进一步扩大.  相似文献   
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