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   1552篇
  免费   56篇
各国政治   79篇
工人农民   64篇
世界政治   134篇
外交国际关系   97篇
法律   738篇
中国共产党   1篇
中国政治   99篇
政治理论   386篇
综合类   10篇
  2021年   9篇
  2020年   22篇
  2019年   27篇
  2018年   51篇
  2017年   55篇
  2016年   43篇
  2015年   31篇
  2014年   50篇
  2013年   233篇
  2012年   57篇
  2011年   95篇
  2010年   54篇
  2009年   46篇
  2008年   68篇
  2007年   54篇
  2006年   64篇
  2005年   57篇
  2004年   57篇
  2003年   53篇
  2002年   32篇
  2001年   19篇
  2000年   18篇
  1999年   19篇
  1998年   16篇
  1997年   16篇
  1996年   14篇
  1995年   17篇
  1994年   21篇
  1993年   18篇
  1992年   13篇
  1991年   11篇
  1990年   9篇
  1989年   14篇
  1988年   20篇
  1987年   16篇
  1986年   7篇
  1985年   16篇
  1984年   9篇
  1983年   13篇
  1982年   12篇
  1981年   7篇
  1979年   11篇
  1978年   13篇
  1977年   11篇
  1976年   12篇
  1975年   17篇
  1974年   12篇
  1973年   11篇
  1972年   11篇
  1967年   8篇
排序方式: 共有1608条查询结果,搜索用时 31 毫秒
171.
This paper adapts a simple model from the optimal contracting literature to explain the relationship between political parties and non-incumbent candidates. The model predicts that legislators with a higher opportunity cost of government service will receive better committee assignments. Using data that spans 12 Congresses (97th to 108th), I find that when the opportunity cost of Senate service is measured by previous occupation, freshmen senators with a high opportunity cost for serving (those who were lawyers) were given good committee assignments, while freshmen senators with a low opportunity cost for serving (professors, and those with relatives already in politics) were given worse committee assignments.  相似文献   
172.
173.
174.
175.
176.
177.
Assumed determinants of ego identity were investigated in this study using sophomore, junior, and senior high school males and females. Subjects were administered the Marcia Ego Identity Status Scale and measures of sex-role identification, personality development, psychological functioning, self-concept, and parental socialization practices. Data analyses, using a median split on identity score, showed that high-identity adolescents obtained more positive scores on sex-role identification, personality development, psychological adjustment, and self-concept than low-identity adolescents. Socialization practices also differed for the two groups. The sex differences which emerged were congruent with the identity literature. Overall, the data supported Erikson's theory of ego identity development.This study was funded by Grant No. 791-01-010-502 from the Senate Research Committee, University of Nebraska at Omaha.Received his Ph.D. in developmental psychology from the University of Wisconsin-Madison. Major interests are in the area of social and personality development in children and adolescents.An earlier version of this paper was presented at the Annual Meeting of the American Psychological Association, Chicago, September 1975.  相似文献   
178.
179.
180.
In this paper the choice between public and private provision of goods and services is considered. In practice, both modes of operation involve significant delegation of authority, and thus appear quite similar in some respects. The argument here is that the main difference between the two modes concerns the transactions costs faced by the government when attempting to intervene in the delegated production activities. Such intervention is generally less costly under public ownership than under private ownership. The greater ease of intervention under public ownership can have its advantages; but the fact that a promise not to intervene is more credible under private production can also have beneficial incentive effects. The fundamental privatization theorem (analogous to the fundamental theorem of welfare economics) is presented, providing conditions under which government production cannot improve upon private production. The restrictiveness of these conditions is evaluated.  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