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   13045篇
  免费   374篇
  国内免费   3篇
财政金融   2291篇
工业经济   917篇
计划管理   2394篇
经济学   2744篇
综合类   248篇
运输经济   69篇
旅游经济   175篇
贸易经济   2605篇
农业经济   447篇
经济概况   1364篇
信息产业经济   1篇
邮电经济   167篇
  2021年   85篇
  2020年   160篇
  2019年   194篇
  2018年   355篇
  2017年   382篇
  2016年   370篇
  2015年   251篇
  2014年   336篇
  2013年   1259篇
  2012年   486篇
  2011年   423篇
  2010年   412篇
  2009年   430篇
  2008年   414篇
  2007年   353篇
  2006年   321篇
  2005年   313篇
  2004年   252篇
  2003年   260篇
  2002年   235篇
  2001年   270篇
  2000年   256篇
  1999年   211篇
  1998年   202篇
  1997年   228篇
  1996年   207篇
  1995年   204篇
  1994年   182篇
  1993年   199篇
  1992年   218篇
  1991年   201篇
  1990年   175篇
  1989年   172篇
  1988年   140篇
  1987年   146篇
  1986年   148篇
  1985年   206篇
  1984年   183篇
  1983年   193篇
  1982年   158篇
  1981年   187篇
  1980年   155篇
  1979年   170篇
  1978年   150篇
  1977年   134篇
  1976年   147篇
  1975年   124篇
  1974年   118篇
  1973年   100篇
  1972年   81篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance.  相似文献   
32.
33.
S. B. Kim  D. S. Bai 《Metrika》1992,39(1):85-93
Summary Economic design of one-sided screening procedures for improving outgoing product quality based on a screening variable is considered for the case with all parameters unknown. It is assumed that the performance and screening variables are jointly normally distributed and that costs are incurred by screening inspection, acceptance of an imperfect item, and disposition of a rejected one. A method for finding optimal cutoff value based on the predictive distribution is presented.  相似文献   
34.
Our paper provides a brief review and summary of issues and advances in the use of latent structure and other finite mixture models in the analysis of choice data. Focus is directed to three primary areas: (1) estimation and computational issues, (2) specification and interpretation issues, and (3) future research issues. We comment on what latent structure models have promised, what has been, to date, delivered, and what we should look forward to in the future.  相似文献   
35.
36.
Empirical studies provide compelling evidence that economic agents do not adopt the complete range of energy-efficient technologies that are cost-effective under prevailing prices and market conditions. Analysts commonly attribute this anomaly to the use of high discount rates in energy-related decisions-an interpretation that is difficult to reconcile with standard models of rational choice. This paper recasts the controversy from the perspective of economic theory and finds that market failures related to asymmetric information, bounded rationality, and transaction costs are major contributors to the so-called "efficiency gap."  相似文献   
37.
The compulsory health insurance fund in Germany is under huge cost pressure. The reasons are the demographic development and the proceeding medical-technical progress, which keep raising the expenses instead of reducing them. Seeing that financial means are getting scarce, there are multifaceted appendages of rationing the medical supply. New market potential arises, however, for the economy of private health insurance for which one can develop and offer answers. The contribution scetches which economic boarders the private health insurance needs to adhere to.  相似文献   
38.
39.
I examine the effect of employee equity‐based compensation (EBC) on firm performance and the determinants of EBC. Using two samples, I find that firms have come to rely more heavily on EBC than in the past. For both samples, I document a significant, positive relation between Tobin's q and the percentage of employee compensation that is equity based. For accounting returns, I find a positive relation with the earlier sample. However, for the later sample I find that greater use of EBC leads to lower levels of future accounting returns. I also find that the determinants of the proportion of EBC are different between the two samples.  相似文献   
40.
This article explores the contradiction between the articulated investment policies, screening criteria or ethical charters of socially responsible investment funds and their actions demonstrated by their portfolio selection practice. The paper provides a background to socially responsible investment and Australia's contribution to greenhouse gas emissions. A discussion of renewable energy options lays the foundation for our main assertion: that this set of possible alternatives provides some new and more environmentally robust options that will better complement the underlying philosophy of funds in the socially responsible investment sector.  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