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   153825篇
  免费   3666篇
  国内免费   110篇
财政金融   27740篇
工业经济   12682篇
计划管理   25015篇
经济学   32472篇
综合类   3210篇
运输经济   1134篇
旅游经济   2672篇
贸易经济   25827篇
农业经济   6950篇
经济概况   19571篇
信息产业经济   14篇
邮电经济   314篇
  2021年   1265篇
  2020年   1979篇
  2019年   2644篇
  2018年   2635篇
  2017年   2910篇
  2016年   3037篇
  2015年   2585篇
  2014年   4061篇
  2013年   16452篇
  2012年   5418篇
  2011年   5676篇
  2010年   5139篇
  2009年   5460篇
  2008年   5094篇
  2007年   4452篇
  2006年   4840篇
  2005年   4692篇
  2004年   3570篇
  2003年   3289篇
  2002年   3213篇
  2001年   2965篇
  2000年   2755篇
  1999年   2607篇
  1998年   2419篇
  1997年   2441篇
  1996年   2271篇
  1995年   2061篇
  1994年   2086篇
  1993年   2049篇
  1992年   2090篇
  1991年   1991篇
  1990年   1848篇
  1989年   1701篇
  1988年   1659篇
  1987年   1644篇
  1986年   1735篇
  1985年   2492篇
  1984年   2362篇
  1983年   2171篇
  1982年   2012篇
  1981年   1941篇
  1980年   1900篇
  1979年   1848篇
  1978年   1655篇
  1977年   1644篇
  1976年   1414篇
  1975年   1281篇
  1974年   1200篇
  1973年   1194篇
  1972年   905篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Major tax reform to simplify the UK tax system is possible. Merging income taxes, social security taxes and corporation tax into only a single flat-rate of tax on all incomes would be a radical start. Avoiding taxes on income and expenditure which are 'too high' requires major reductions in government spending, mainly on the welfare state. Given the political will, over a period of years we really can hugely improve the UK tax system.  相似文献   
3.
4.
本文讨论了投资方案优劣比较的客观标准,论证了现行增额投资回收期指标判断方案优劣时存在的缺陷,指出准确的比较方法依然是方案自身投资回收期指标间的直接比较,并提出了改进办法。  相似文献   
5.
This article examines the demographic and geographical importance of wealthy middle-class women. It argues that in certain towns and cities, notably London, such women were of sufficient importance to merit attention in their own right. Drawing upon a sample of wills, it describes the types of wealth owned by these women. By examining women's investment in government securities, it argues that women's wealth was of crucial importance to the British state. Its findings challenge conventional understandings of the relationships between gender ideology, wealth holding, and economic development.  相似文献   
6.
7.
Industry Classifications: Aim, Scope and Techniques   总被引:1,自引:0,他引:1  
Industry classifications select essential characteristics of technology and markets, condensating the vast heterogeneity of competitive environments into a smaller number of salient types. Although frequently applied in empirical studies on industrial economics, technological development, international trade, and competitiveness, we still find little or no methodological discussion and a striking lack of awareness for the different approaches pursued. This interpretative survey systematically collects information about the aim, scope and techniques relevant to the major classifications currently used in applied economic studies.  相似文献   
8.
We examine the association between abnormal returns and earnings management in the context of price control regulations to test the construct validity of the earnings management model. Abnormal returns are used as a market–based measure, and discretionary accruals are employed to measure earnings management. Our results support the hypotheses that (1) price control regulations affect firms' security prices negatively, (2) firms make income–decreasing discretionary accruals to increase the likelihood of price increase approval, and (3) firms that are affected most negatively by the regulations manage earnings more aggressively. We conclude that the earnings management model we use in this study is capable of predicting opportunistic discretionary accruals.  相似文献   
9.
10.
Based on intergenerational data from the Panel Study of Income Dynamics, I provide estimates of income mobility across generations for men. Special attention is paid to issues of censoring caused by a son's unemployment. Employing non‐parametric bounds estimates, I illustrate that previous income mobility estimates rely heavily on (unjustified) assumptions of exogenous selection. Assuming a son's potential income is instead a function of his reason for unemployment and work history, I re‐estimate mobility. Allowing for sampling variability, the range of feasible slopes consistent with these modified bounds restrictions is 0.27 to 0.55. Copyright © 2002 John Wiley & Sons, Ltd.  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