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   18292篇
  免费   46篇
财政金融   3027篇
工业经济   865篇
计划管理   2814篇
经济学   4075篇
综合类   491篇
运输经济   21篇
旅游经济   43篇
贸易经济   4746篇
农业经济   82篇
经济概况   1558篇
信息产业经济   44篇
邮电经济   572篇
  2023年   11篇
  2021年   11篇
  2020年   21篇
  2019年   34篇
  2018年   2334篇
  2017年   2080篇
  2016年   1234篇
  2015年   110篇
  2014年   110篇
  2013年   293篇
  2012年   465篇
  2011年   1973篇
  2010年   1868篇
  2009年   1553篇
  2008年   1557篇
  2007年   1899篇
  2006年   102篇
  2005年   427篇
  2004年   512篇
  2003年   597篇
  2002年   292篇
  2001年   89篇
  2000年   90篇
  1999年   32篇
  1998年   51篇
  1997年   24篇
  1996年   32篇
  1995年   24篇
  1994年   29篇
  1993年   22篇
  1992年   28篇
  1991年   26篇
  1990年   25篇
  1989年   27篇
  1988年   17篇
  1987年   15篇
  1986年   35篇
  1985年   34篇
  1984年   26篇
  1983年   20篇
  1982年   15篇
  1981年   19篇
  1980年   14篇
  1979年   26篇
  1978年   14篇
  1977年   17篇
  1976年   17篇
  1975年   13篇
  1974年   13篇
  1972年   12篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
This article highlights recent improvements and plans for further improvements to each of BEA’s major regional economic accounts programs. The improvements focus on the acceleration of release of the estimates and on the preparation of new and extended estimates. There also is a brief discussion on BEA’s research effort to improve the regional accounts.JEL Classification E010  相似文献   
63.
The main achievements and limitations of studies of managerial jobs and behaviour are summarized drawing upon the review articles of Martinko and Gardner (1985) and Hales (1986). Ways forward are explored by developing a map of the field for future studies, which is shown in figure 1. The figure has three aims: to show different areas for research; to help in identifying neglected areas that could be fruitful ways forward; and to show the interrelationship between different aspects of the study and thus to act as a guide for data collection. The main purpose of the article is to be a guide to what can, and what might most fruitfully, be studied, but some suggestions are also made about methods.  相似文献   
64.
Abstract . The concept of “self-efficacy” is used to test the hypothesis that the negative self-concept of welfare recipients coniributes to long term psychological and material dependency on such assistance. Self-efficacy focuses on the extent to which people are able to produce and regulate events in their lives and is associated with self-imposed performance expectations. The extent to which the minority status which Blacks occupy in this society decreases self efficacy relative to Whites is examined, using information generated from structured interviews with 290 low income Black and White women. Operationalizing the concept of self-efficacy with appropriate controls for socioeconomic status, family composition and other factors results in finding no racial differences in sense of self-efficacy between Black and White women. Observed differences in patterns of receipt of public assistance are found to be more directly related to the persistence of structural barriers to upward mobility that have differential impacts on Blacks and Whites. Long term receipt of public assistance is found to adversely affect both self-worth and work orientation/perceived efficacy for all women.  相似文献   
65.
Erhard Cramer  Udo Kamps 《Metrika》2003,58(3):293-310
Expressions for marginal distribution functions of sequential order statistics and generalized order statistics are presented without any restrictions imposed on the model parameters. The results are related to the relevation transform, to the distribution of the product of Beta distributed random variables, and to Meijers G-functions. Some selected applications in the areas of moments, conditional distributions, recurrence relations, and reliability properties are shown. Key words:Order statistics; Generalized order statistics; Sequential order statistics; Record values; Distribution theory; Meijers G-function; Recurrence relations; Reliability properties.  相似文献   
66.
This note uses the Theorem of the Alternative to prove new results on the implementability of general, asymmetric auctions, and to provide simpler proofs of known results for symmetric auctions. The tradeoff is that type spaces are taken to be finite.  相似文献   
67.
68.
69.
70.
The two main purposes of this paper are an introduction to the economic analysis of insurance fraud and furthermore a derivation of factors that determine fraudulent behavior of policyholders on insurance markets. Consequently, we analyze the strategic decision problems of insurance companies and the policyholders and identify some factors that can help to reduce fraudulent behavior. In this context we evaluate two derived starting points for the combat against insurance fraud: fraud detection systems and a consequent charge policy of detected defrauders. We illustrate that both points can help to reduce the cost of fraud. Furthermore, we enhance our earlier analysis with respect to the empirical fact that some individuals care about fairness or — in the insurance fraud context — the legitimacy of their actions. Surprisingly, in some market situations these concerns of some policyholders do not lead to a lower fraud probability. Finally, we discuss how and to what extent insurance companies can influence such ethical concerns of policyholders. On that score, we distinguish insurance specific and insurance unspecific factors and their impact on the consumers attitudes towards insurance fraud.  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