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   6012篇
  免费   199篇
各国政治   323篇
工人农民   212篇
世界政治   470篇
外交国际关系   209篇
法律   3531篇
中国共产党   1篇
中国政治   43篇
政治理论   1376篇
综合类   46篇
  2020年   81篇
  2019年   94篇
  2018年   111篇
  2017年   138篇
  2016年   141篇
  2015年   109篇
  2014年   121篇
  2013年   724篇
  2012年   156篇
  2011年   155篇
  2010年   134篇
  2009年   124篇
  2008年   162篇
  2007年   161篇
  2006年   171篇
  2005年   151篇
  2004年   164篇
  2003年   149篇
  2002年   146篇
  2001年   205篇
  2000年   198篇
  1999年   148篇
  1998年   83篇
  1997年   67篇
  1996年   66篇
  1995年   70篇
  1994年   66篇
  1993年   61篇
  1992年   103篇
  1991年   109篇
  1990年   122篇
  1989年   104篇
  1988年   104篇
  1987年   96篇
  1986年   119篇
  1985年   125篇
  1984年   107篇
  1983年   97篇
  1982年   59篇
  1981年   63篇
  1980年   61篇
  1979年   60篇
  1978年   66篇
  1977年   41篇
  1976年   48篇
  1975年   55篇
  1974年   72篇
  1973年   62篇
  1972年   52篇
  1969年   47篇
排序方式: 共有6211条查询结果,搜索用时 15 毫秒
991.
In a continuing effort to reform and reinvent the way public organizations do business, the outsourcing of services has become a popular tool, particularly as resource constraints limit options available to governments. All too often, the decision is made, for reasons of ideology or resource constraints, to outsource services without giving careful consideration to the impact of privatization on the core missions of an agency, or whether privatization, in fact, offers real cost savings. Purchasing tools designed for traditional commodity purchases are often grossly unsuited for making decisions on specialized technical services.
This article suggests a process for the evaluation of an option to outsource laboratory services. It suggests that, prior to contracting or privatizing services, the concerned agency should evaluate:
the impact on the agency's core mission
the availability, stability, and reliability of private sector service providers
the relative costs of internal and external (public or private sector) service providers
the potential impact on regulatory enforcement
the ability to monitor the performance of external providers
potential conflicts of interest
Based on this model, the ongoing internal evaluation of services offers public agencies management tools to obtain the best value for the taxpayer dollar, not only in terms of the raw cost per test, but also in managing the quality of the services.  相似文献   
992.
George Tsebelis 《管理》2000,13(4):441-474
The veto players theory can be used to analyze all political systems regardless of regime (presidential or parliamentary), party system (one-, two-, or multiparty), and type of parliament (unicameral or multicameral). This paper develops the veto players theory to account for a series of important political phenomena: the difference between majoritarian and supermajoritarian institutions; the importance of absenteeism, or of political marginalization; the importance of agenda control and referendums; the reasons for government stability (parliamentary systems) and regime stability (presidential systems); the reasons for independence of bureaucracies, and judicial independence. All these phenomena are analyzed in a coherent way, on the basis of the same framework. Empirical evidence from existing literature corroborating the theory is provided.  相似文献   
993.
994.
Now Doniger paced, using Kramer as an audience of one, "We are all ruled by the past, although no on understands it. No one recognizes the power of the past" he said, with a sweep of his hand.
"But if you think about it, the past has always been more important than the present. The present is like a coral island that sticks above the water, but is built upon millions of dead corals under the surface, that no one sees. In the same way, our everyday world is built upon millions and millions of events and decisions that occurred in the past. And what we add in the present is trivial.  相似文献   
995.
996.
997.
This paper tests the validity of the Buchanan-Wagner hypothesis for Greece, that increases in public spending are the result of the tolerance of large deficits over the period 1961–1994. To test this hypothesis, three unit-root pretests, the Dickey-Fuller, Phillips-Perron and Kwiatkowski et al. and maximum likelihood estimation techniques of cointegrating vectors and a vector error-correction model are employed. A long-run relationship is found to exist among government spending, deficit, income,wages and adult population and the importance of short-run deviations are presented. The empirical evidence suggests that Buchanan and Wagner hypothesis, seems to find support for Greece in the long-run and the short-run. Further, productivity in the public sector is lower than in the private sector and the growth of income is not an important determinant of the increase in the relative size of public spending.  相似文献   
998.
Many argue that the composition of a school or classroom‐that is, the characteristics of the students themselves‐affect the educational attainment of an individual student. This influence of the students in a classroom is often referred to as a peer effect. There have been few systematic studies that empirically examine the peer effect in the educational process. In this research, we examine the peer effect with a unique data set that includes individual student achievement scores and comprehensive characteristics of the students' families, teachers, other school characteristics, and peers for five countries. The data allow an examination of peer effects in both private and public schools in all countries. Our analysis indicates that peer effects are a significant determinant of educational achievement; the effects of peers appear to be greater for low‐ability students than for high‐ability students. The finding is robust across countries but not robust across school type. © 2000 by the Association for Public Policy Analysis and Management.  相似文献   
999.
1000.
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