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   19862篇
  免费   823篇
各国政治   791篇
工人农民   711篇
世界政治   1463篇
外交国际关系   577篇
法律   12815篇
中国共产党   1篇
中国政治   120篇
政治理论   4081篇
综合类   126篇
  2021年   105篇
  2020年   279篇
  2019年   362篇
  2018年   404篇
  2017年   487篇
  2016年   494篇
  2015年   386篇
  2014年   433篇
  2013年   1862篇
  2012年   419篇
  2011年   539篇
  2010年   475篇
  2009年   520篇
  2008年   527篇
  2007年   505篇
  2006年   508篇
  2005年   467篇
  2004年   457篇
  2003年   450篇
  2002年   450篇
  2001年   822篇
  2000年   714篇
  1999年   543篇
  1998年   325篇
  1997年   261篇
  1996年   250篇
  1995年   239篇
  1994年   270篇
  1993年   256篇
  1992年   401篇
  1991年   440篇
  1990年   420篇
  1989年   424篇
  1988年   400篇
  1987年   379篇
  1986年   457篇
  1985年   428篇
  1984年   369篇
  1983年   358篇
  1982年   247篇
  1981年   232篇
  1980年   191篇
  1979年   259篇
  1978年   151篇
  1977年   176篇
  1976年   153篇
  1974年   156篇
  1973年   139篇
  1972年   133篇
  1971年   106篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
Recent studies have raised serious concerns about the quality of governmental audits by independent CPAs. Part of the problem is that many governmental units do not use effective audit procurement procedures. This article examines current state guidelines for the procurement of CPA audit services by local governments and recommends an expansion of the states' role in this area.  相似文献   
982.
This paper analyzes principal-agent slack in the context of a political market composed of voters, challengers, and incumbents. The introduction of a last period (via finite-livedness) in combination with voters' imperfect information about politicians' preferences causes time-varying shirking behavior on the part of politicians. Political markets eventually sort out those politicians with significantly deviant policy preferences, potentially providing a solution to the last period problem and enabling politicians to make credible commitments. In the extreme, sorting can insure that it is not worthwhile for potential shirkers to run for office. A systematic relationship between political shirking and number of terms in office may exist, and depends on how quickly sorting takes place. We show that evidence of little if any shirking is quite consistent with politicians having diverse and strongly held policy preferences. In addition, if sorting is a significant feature of political markets, cross-sectional studies will tend to oversample little- and non-shirking politicians compared to longitudinal studies. Reinterpretations of existing empirical work are also discussed.We wish to thank John Bond, Donald Deere, Gertrud Fremling, Tim Gronberg, Michael Munger, Russell Roberts, and the participants of workshops at Dartmouth College, Texas A&M University, University of Houston, University of Texas, Yale Law School, and the 1987 Public Choice Meetings for valuable discussions on earlier drafts of this paper. An earlier version of this paper was issued as working paper E-87-34 by the Hoover Institution. The views expressed here do not necessarily reflect those of the U.S. Sentencing Commission nor those of any of its Commissioners. Any remaining errors are of course our own.  相似文献   
983.
We examine whether nations, faced with the threat of terrorism, will be motivated to engage in the efficient amount of retaliation against terrorists. We demonstrate that the problem confronting the efforts of nations to achieve an optimal retaliation against terrorists is understated by the traditional free-rider analysis. In particular, nations have the option of actually selling or reducing the public good of retaliation, provided through the efforts of others, by offering safe havens to terrorists in return for the terrorists' pledge to attack elsewhere. This paid-rider behavior is also shown to apply to other public good scenarios.The authors gratefully acknowledge the helpful comments of Gordon Tullock on an earlier draft. Sole responsibility for the paper's content rests with the authors. Todd Sandler's research was supported by a Science and Humanities Research Institute Summer Grant at Iowa State University.  相似文献   
984.
985.
986.
Book reviews     
Islamic homeland, soviet section

Alexandre Bennigsen and Marie Broxup, The Islamic Threat to the Soviet State. London & Canberra: Croom Helm, 1983, 170 pp. Cloth, £12.95. ISBN 0–7099–0619–6.

Islam Today: the USSR

T. S. Saidbaev, Islam: istoriia i sovremennost. Moscow: Znanie, 1985, 64 pp., 47,290 copies. Series Nauchnyi Ateizm, No. 11, 1985.  相似文献   

987.
Teenagers' perspective of disagreement over family finances and related factors were investigated. Involvement of teenagers in employment and percentage of earnings kept for personal use were examined. Reasons for employment affected disagreement over finances, whereas family income had no important effect on disagreement over finances in multivariate analysis. Disagreement over finances was important in explaining variation in satisfaction with money management in the family and in satisfaction with family life. Results have implication for reducing stress in family life and for contributing to theory on family resource management and adolescent development.This study is part of an interregional Agricultural Experiment Station Research Project NC-128 Quality of Life as Affected by Area of Residence. Cooperating states: Arizona, California, Colorado, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Nevada, Ohio, and Texas.Received Ph.D. from Purdue University. Research interests include family economics.Received B.S. from Cornell. Research interests include consumer and family economics.  相似文献   
988.
The global self-esteem of adolescents was examined in relation to two aspects of their daily lives: (a) the perceived quality of their relationships with parents and peers; and (b) their self-evaluation in the areas of school, popularity, and athletics. The quality of relationships with parents made significant contributions to the explained variance in self-esteem of both boys and girls. The quality of peer relationships made a significant additional contribution for girls but not boys. The importance of parent and peer relationships to self-esteem did not vary as a function of age for either sex. Self-evaluation of popularity was related to girls' global self-esteem, while evaluation of school performance was more important for boys.Received her Ph.D. from George Peabody College. Research interests include adolescent stress and coping, and parent-child relationships.Received his M.D. from Medical College of Georgia. Research interests include stress, eating disorders, and pregnancy in adolescents.  相似文献   
989.
Over the past two decades states have significantly increased their use of competitive bidding to purchase health and social services from private agencies. Competitive contracting is thought to facilitate program administration, to reduce costs, and to increase the quality of delivered services. We evaluate these claims in light of Massachusetts' experience with competitive contracting for mental health care. We find that few of the expected benefits are achieved. In practice, supposedly competitive bidding systems often degenerate into administratively complicated negotiations between the state and private monopolies. This results in higher costs and lower quality of services. In light of this negative assessment, three strategies for reform are proposed and evaluated.  相似文献   
990.
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