首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   17879篇
  免费   666篇
  国内免费   34篇
财政金融   1227篇
工业经济   1001篇
计划管理   5800篇
经济学   2326篇
综合类   1940篇
运输经济   213篇
旅游经济   361篇
贸易经济   3056篇
农业经济   962篇
经济概况   1693篇
  2025年   79篇
  2024年   271篇
  2023年   293篇
  2022年   328篇
  2021年   443篇
  2020年   605篇
  2019年   446篇
  2018年   366篇
  2017年   484篇
  2016年   530篇
  2015年   555篇
  2014年   1130篇
  2013年   1444篇
  2012年   1418篇
  2011年   1619篇
  2010年   1174篇
  2009年   1061篇
  2008年   1428篇
  2007年   1266篇
  2006年   1025篇
  2005年   845篇
  2004年   594篇
  2003年   390篇
  2002年   257篇
  2001年   167篇
  2000年   111篇
  1999年   74篇
  1998年   36篇
  1997年   31篇
  1996年   25篇
  1995年   18篇
  1994年   8篇
  1993年   9篇
  1992年   13篇
  1991年   4篇
  1990年   5篇
  1989年   3篇
  1988年   2篇
  1986年   2篇
  1985年   3篇
  1984年   4篇
  1983年   4篇
  1982年   8篇
  1981年   1篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
The intrinsic value approach amortizes over the life of the option, the difference between the stock price on the date of the grant and the exercise price of the option. The fair market value approach amortizes over the life of the option, the market value of stock options on the date of the grant. These approaches do not reflect the changes in the option–based compensation cost after the grant date. This paper proposes an economic cost approach that not only adjusts for the changes in the value of the options during its life but also records the issuance of the stock at fair market value on the exercise date.  相似文献   
2.
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).  相似文献   
3.
The model of public policy studied in this paper has heterogeneous citizens/voters and two public goods: one (roads) chosen directly by an elected policy‐maker, and the other (pollution) stochastically dependent on the amount of roads. Both a one‐country and a two‐country version of the model are analyzed; the latter displays externalities across the countries which create incentives for free riding and strategic delegation. The welfare effects of providing the policy‐maker with information about the relationship between roads and pollution are investigated, and it is shown that more information hurts some—sometimes even all—citizens. In particular, the opportunity not to create an institution for information gathering can serve as a commitment device for a country, although with the unfortunate effect of making the overall outcome even worse. Implications for the welfare effects of “informational lobbying” are also discussed.  相似文献   
4.
In his 1960 book, Sraffa suggested using a composite commodity,which he called the ‘Standard commodity’, to solveRicardo's search for an invariable measure of value, i.e., astandard capable of isolating the price movements of any othercommodity induced by changes in income distribution. The absencein Sraffa's book of an explicit proof of the invariance propertyof this standard gave rise to many misunderstandings about itsmeaning and its role as an invariable measure of value. In orderto clear up these questions, Bellino (On Sraffa's Standard commodity,Cambridge Journal of Economics, vol. 28, 121–32, 2004)has proposed a ‘proper’ definition of an ‘invariablemeasure of value’, showing that Sraffa's Standard commoditydoes fulfil the requirements of this definition. He claims thatthe fulfilment of this property (but not the constancy of its‘nominal’ price) qualifies the Standard commodityas an invariable measure of value. In this paper, a proof ofthe invariance of the price of the Standard commodity with respectto changes in income distribution is given, and the equivalenceof this property with Bellino's definition of invariance isshown.  相似文献   
5.
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example.  相似文献   
6.
This paper evaluates the performance of glamour and value strategies and tests the extrapolation model for the Japanese equity market. In general, value stocks outperform glamour stocks by between 6 and 12 percent per annum for the five years after portfolio formation. Evidence from past, future and expected growth provides strong support for the story developed in Lakonishok, Shleifer and Vishny (1994). It is difficult to attribute the value premia to the difference, if any, in risk factors. In addition, the book-to-market premium is much closer to an arbitrage opportunity than the size premium.  相似文献   
7.
当前,商品市场的竞争越来越明显地体现在商品供应链上面,而矛盾的焦点在于很多供应商受资金短缺的约束,已与上下游企业之间产生严重的不协调现象,进而影响到下游制造商或零售商的利润,最终导致整体上供应链利润减少。面对资金约束问题,供应商应积极动员上下游企业尽可能地采取经济援助策略,增强融资的风险防范能力。其基本模式主要有:企业预付款融资模式、企业直接投资融资模式、企业担保下的银行融资模式。并通过采用价格折扣、收益共享、供应链保险等方法规避风险,达到供应链条及供应链上各企业可持续发展的目的。  相似文献   
8.
本文利用2001~2006年度的上市公司数据,以价值相关性作为判断资产减值会计信息质量的标准。通过实证分析显示,资产减值会计信息更多体现为损益表项目而非资产负债表项目。这表明,资产减值没有反映资产价值的真实减少,而沦为管理层操纵盈余的工具。本文还以深交所信息披露评级作为判断信息披露质量的标准,实证结果显示,信息披露评级的高低没有影响资产减值会计信息的价值相关性。  相似文献   
9.
Global value chains (GVCs), led by transnational corporations (TNCs), have reshaped the world division of labor over the past two decades. GVCs are pervasive in low technology manufacturing, such as textile and apparel, as well as in more advanced industries like automobiles, electronics, and machines. This hierarchical division of labor generates wild competition at the lower value-added stages of production, where low wages and low profit margins prevail for workers and contract manufacturers in developing countries. At the top of the hierarchy another kind of competition prevails, centered on the ability to monitor and control intellectual property rights related to innovation, finance, and marketing. We argue that GVCs have had crucial effects on income inequality and the appropriation of rents in modern capitalism.  相似文献   
10.
This study examines the structural relationships among film quality, value, and satisfaction on the perspective of moviegoers. The experience economy concept is employed as the theoretical framework, where moviegoers’ cognitive and affective evaluations are projected in fulfilling their perceived value. Moviegoers’ perceived movie attributes and experiences are assessed to evaluate the moviegoers’ satisfactions through functional and emotional values. In particular, this article investigates how four dimensions of experience mediate the effect of movie attributes on perceived value and satisfaction. A total of 565 samples were analyzed with structural equation modeling to investigate the relationship of ‘quality—value—satisfaction.’ The findings show that two movie attributes (core and peripheral) affect three dimensions of experience (entertainment, educational, and escapist), which in turn influence functional and emotional values, and moviegoers’ satisfaction. The results also confirm that emotional value is a more powerful predictor of moviegoers’ satisfaction than functional value.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号