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   32733篇
  免费   625篇
财政金融   6024篇
工业经济   2452篇
计划管理   5502篇
经济学   7376篇
综合类   370篇
运输经济   216篇
旅游经济   546篇
贸易经济   5060篇
农业经济   1567篇
经济概况   4174篇
邮电经济   71篇
  2021年   181篇
  2020年   309篇
  2019年   428篇
  2018年   601篇
  2017年   595篇
  2016年   554篇
  2015年   418篇
  2014年   648篇
  2013年   3241篇
  2012年   876篇
  2011年   935篇
  2010年   757篇
  2009年   907篇
  2008年   944篇
  2007年   853篇
  2006年   802篇
  2005年   748篇
  2004年   734篇
  2003年   736篇
  2002年   688篇
  2001年   684篇
  2000年   678篇
  1999年   594篇
  1998年   591篇
  1997年   562篇
  1996年   563篇
  1995年   502篇
  1994年   555篇
  1993年   548篇
  1992年   533篇
  1991年   551篇
  1990年   510篇
  1989年   434篇
  1988年   425篇
  1987年   428篇
  1986年   441篇
  1985年   649篇
  1984年   596篇
  1983年   599篇
  1982年   591篇
  1981年   505篇
  1980年   495篇
  1979年   502篇
  1978年   440篇
  1977年   397篇
  1976年   322篇
  1975年   309篇
  1974年   286篇
  1973年   268篇
  1972年   210篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
42.
43.
如今,全球都笼罩在经济衰退之中.如果下一个就要轮到贵公司,你该怎么办?当然你要尽力保证企业财务的稳定.但更重要的是,你还必须了解公司在衰退结束后的目标设计.如果你知道企业的发展方向和如何实现这一目标,那么衰退时期是改善公司相对战略地位的好时机.  相似文献   
44.
The purpose of this study was to assess the basis behavior of the Live Cattle Futures contract at the Chicago Mercantile Exchange (CME) before and after the 1995 contract changes. Additionally, an alternative method of basis calculation utilizing weighted mean futures prices versus settlement futures prices was compared to determine which method provides a better representation of the basis level. Within a regression model with heteroskedascity error framework, we found that the level of nearby basis in the period after June 1995 has shifted lower and the average monthly open interest of net commercial long positions has substantially increased after the contract modifications. These empirical results are consistent with the notion that more long activity entered the market in response to the contract modifications. Additionally, an alternative (new) measure of basis calculation (cash price minus weighted mean futures price) produced similar results to two other commonly used measures. In conclusion, the 1995 contract changes have neither increased nor decreased the volatility of live cattle basis. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:557–590, 2004  相似文献   
45.
46.
47.
J. Kol 《De Economist》2004,152(2):273-296
Jan Tinbergen's scientific writings cover six main areas of research. His articles in De Economist represent these areas; in some cases the contributions to De Economist were of a pioneering nature (business cycles, economic models, economic integration); in others De Economist was the first or even single outlet for Tinbergen's work. This article provides an overview of these contributions. The wide scope of Tinbergen's areas of research goes together with a unity in approach, the characteristics of which are: policy relevance, quantification and measurement, balance in analysis and presentation, and learning from experience. Tinbergen's articles in De Economist bear witness to this approach which at the time also met with scepticism and resistance as this overview shows. According to Houthakker, Tinbergen's main contribution may be that, amidst the pleas of interest groups and the slogans of the laity, an attempt is made that the voice of the professional economic researcher be heard. Tinbergen's work still sets an agenda for both economic research and policy making.  相似文献   
48.
The notion that prices impound a wide array of information, including market expectations, has led to earnings forecast models conditioned on prices. Yet, presumably, analysts' forecasts capture both public information and certain private information not previously impounded in prices. Accordingly, price-based models are seemingly an inefficient, and less effective, source of expecta-tions. This article investigates this hypothesis using financial analysts', price-based, and naive forecasts. Results indicate that analysts' forecasts (1) are at least as accurate as price-based and naive models, and (2) yield better expectations for market tests relating returns and earnings. These inferences are robust across different information environments. The evidence suggests that analysts either possess private information or are more effective information processors, or both.  相似文献   
49.
Cost of equity estimates are compared for three pricing models: the traditional local CAPM, the single (market) factor global CAPM, and the two‐factor global CAPM, with both market and currency index factors. For 2989 US stocks, the average difference in the cost of equity estimates is about 48 basis points between the local CAPM and the single‐factor global CAPM, and is about 61 basis points between the two global models. For 70 developed‐market ADRs, the corresponding average differences are 76 and 47 basis points, respectively. For 48 emerging‐market ADRs, the corresponding average differences are 57 and 70 basis points.  相似文献   
50.
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