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   14699篇
  免费   279篇
财政金融   2452篇
工业经济   1095篇
计划管理   2396篇
经济学   3273篇
综合类   412篇
运输经济   71篇
旅游经济   153篇
贸易经济   2786篇
农业经济   476篇
经济概况   1816篇
信息产业经济   4篇
邮电经济   44篇
  2021年   71篇
  2020年   120篇
  2019年   190篇
  2018年   871篇
  2017年   876篇
  2016年   605篇
  2015年   144篇
  2014年   244篇
  2013年   973篇
  2012年   431篇
  2011年   955篇
  2010年   827篇
  2009年   792篇
  2008年   747篇
  2007年   854篇
  2006年   249篇
  2005年   296篇
  2004年   329篇
  2003年   371篇
  2002年   283篇
  2001年   205篇
  2000年   237篇
  1999年   197篇
  1998年   203篇
  1997年   193篇
  1996年   210篇
  1995年   159篇
  1994年   150篇
  1993年   169篇
  1992年   172篇
  1991年   173篇
  1990年   167篇
  1989年   121篇
  1988年   109篇
  1987年   113篇
  1986年   129篇
  1985年   184篇
  1984年   142篇
  1983年   131篇
  1982年   108篇
  1981年   131篇
  1980年   112篇
  1979年   117篇
  1978年   118篇
  1977年   68篇
  1976年   83篇
  1975年   65篇
  1974年   58篇
  1973年   66篇
  1972年   58篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
102.
103.
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.   相似文献   
104.
Recreation Demand and Residential Location   总被引:2,自引:0,他引:2  
We use the properties of competitive location equilibrium to study the demand for recreation and the choice of primary residence location. Location-specific recreation and employment lead to pooling equilibria in which consumers reside according to their preference for recreation. In general, the stronger the taste for recreation, the greater the attraction of living close to the recreation site and the lower the demand for other goods, including housing. We explore the effects of trip frequency, trip length, and recreation cost on the spatial distribution of consumers. We also consider the effect of the wage rate on recreation and location demands.  相似文献   
105.
Real Investment Implications of Employee Stock Option Exercises   总被引:6,自引:0,他引:6  
This paper examines a real cost of awarding employee stock options. Based on the observation that managers are extremely concerned about earnings-per-share dilution in equity related compensation, we predict and find that firms experiencing significant employee stock option (ESO) exercises shift resources away from real investments towards the repurchase of their own stocks. We further find weak evidence of a decline in subsequent firm performance (as measured by return on assets) for several years following the cut in discretionary investments as a result of stock option exercises, though this result is sensitive to the metric used to measure performance. Collectively, our findings indicate that ESO exercises potentially impose a real cost on the firm in terms of foregone investment opportunities.  相似文献   
106.
107.
Endogenous Group Formation   总被引:1,自引:0,他引:1  
While the rules governing the formation of groups engaging in collective action may have significant impact on group size and behavior of members, most experiments on public goods have been conducted with the subjects in exogenously fixed groups or of fixed sizes. We study endogenous formation of groups in a public‐goods provision game by allowing subjects to change groups under three sets of rules: free entry/exit, restricted entry with free exit, and free entry with restricted exit. We find that the rules governing entry and exit do have a significant impact on individual behavior and group‐level outcomes.  相似文献   
108.
This paper addresses two very old issues in human society: espionage and double crossing. Our major conclusion points out that there will be a serious over rewarding problem in the direct mechanism due to double crossing in espionage, and a competitive mechanism with a relative performance regime can possibly mitigate the over rewarding problem and still extract the information.   相似文献   
109.
The links between the fuel and energy complex and the consolidated budget of Irkutsk oblast are examined; the budget balance of income and expenditure is evaluated in relation to the development of the fuel and energy complex; and factors affecting the budget proceeds from the energy sector and the related energy-intensive sectors are analyzed.  相似文献   
110.
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