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   17755篇
  免费   792篇
各国政治   710篇
工人农民   748篇
世界政治   1174篇
外交国际关系   592篇
法律   11481篇
中国共产党   34篇
中国政治   160篇
政治理论   3464篇
综合类   184篇
  2021年   102篇
  2020年   299篇
  2019年   307篇
  2018年   406篇
  2017年   470篇
  2016年   516篇
  2015年   423篇
  2014年   429篇
  2013年   1711篇
  2012年   413篇
  2011年   464篇
  2010年   417篇
  2009年   500篇
  2008年   508篇
  2007年   528篇
  2006年   505篇
  2005年   469篇
  2004年   493篇
  2003年   416篇
  2002年   393篇
  2001年   650篇
  2000年   588篇
  1999年   482篇
  1998年   261篇
  1997年   189篇
  1996年   216篇
  1995年   198篇
  1994年   225篇
  1993年   216篇
  1992年   348篇
  1991年   410篇
  1990年   364篇
  1989年   348篇
  1988年   347篇
  1987年   344篇
  1986年   338篇
  1985年   329篇
  1984年   271篇
  1983年   274篇
  1982年   187篇
  1981年   201篇
  1980年   156篇
  1979年   217篇
  1978年   158篇
  1977年   130篇
  1976年   117篇
  1975年   114篇
  1974年   125篇
  1973年   135篇
  1972年   92篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
995.
996.
We consider a rent-seeking contest of the kind introduced by Tullock (1980) in which two players compete for a monopoly rent. We extend the contest by requiring that if a player puts forward an effort, his expenditures must be larger than or equal to some minimum level. We show that, depending on the model parameters, the number of Nash equilibria of the extended model can be zero, one, two or four. Furthermore, it turns out that the extent of rent dissipation in a Nash equilibrium of the extended model can be larger than, equal to, or smaller than the extent of rent dissipation in the unique Nash equilibrium of the original model.  相似文献   
997.
In “Reconciling voters' behavior with legislative term limits,” Dick and Lott argue that since more senior representatives are better at rent-seeking, there is an inefficient tendency to re-elect incumbents. In their model, term limits are preferred collectively by constituencies, even though no constituency would independently oust its incumbent representative. However, many term limits are unilaterally self-imposed (in particular the 22nd amendment limiting presidents' terms to two), and their model cannot explain these limits. In this comment, I suggest that term limits may be self-imposed by risk-averse voters, who prefer cycling between left and right wing candidates to a once-and-for-all election that imposes a candidate of a single ideology on the entre electorate. The market failure that makes term limits helpful is that out of power minorities cannot bribe the median voter.  相似文献   
998.
This article examines the selection and use of a budget approval technique. Specifically, two research questions are addressed: (1) Does the use of a particular budget approval method by a governmental body impact the execution of the budget? (2) What characteristics of a local government are associated with its decision to use a particular budget approval method? Both research questions are addressed by analyzing data from public school systems in the Commonwealth of Virginia, specifically, whether using categorical budget approval differs in the accuracy of budgeting versus using a lump-sum approval method. Characteristics of Virginia school districts are also analyzed according to whether any of them are likely to be associated with school districts using a particular approval method. The remainder of this article is organized as follows: the next section describes the role of budgeting control in schools; subsequent sections review Virginia school district budgeting practices, develop the empirical model used to test the hypotheses, describe the sample, analyze the results of empirical tests and discuss implications of the findings.  相似文献   
999.
1000.
The Single Audit Act of 1984 (SAA) attempted to strengthen Congress's control over disbursement and monitoring of federal funds intended for governmental and nonprofit entities. The SAA's primary agent of federal control is the auditor. This article examines the historical development of the SAA and discusses the results of a survey of auditors and accountants who are members of the Intergovernmental Auditing Forum. The survey addresses auditors' conception of the SAA and the auditor's role in achieving better control of federal disbursements.  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