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   3702篇
  免费   96篇
各国政治   235篇
工人农民   89篇
世界政治   279篇
外交国际关系   210篇
法律   1883篇
中国政治   23篇
政治理论   1055篇
综合类   24篇
  2023年   17篇
  2020年   35篇
  2019年   39篇
  2018年   65篇
  2017年   68篇
  2016年   80篇
  2015年   107篇
  2014年   98篇
  2013年   633篇
  2012年   107篇
  2011年   109篇
  2010年   131篇
  2009年   133篇
  2008年   125篇
  2007年   126篇
  2006年   139篇
  2005年   136篇
  2004年   126篇
  2003年   79篇
  2002年   95篇
  2001年   132篇
  2000年   49篇
  1999年   42篇
  1998年   58篇
  1997年   45篇
  1996年   40篇
  1995年   60篇
  1994年   49篇
  1993年   49篇
  1992年   42篇
  1991年   38篇
  1990年   42篇
  1989年   56篇
  1988年   46篇
  1987年   51篇
  1986年   52篇
  1985年   43篇
  1984年   49篇
  1983年   35篇
  1982年   46篇
  1981年   30篇
  1980年   31篇
  1979年   17篇
  1978年   35篇
  1977年   31篇
  1976年   21篇
  1975年   19篇
  1974年   29篇
  1973年   18篇
  1969年   16篇
排序方式: 共有3798条查询结果,搜索用时 15 毫秒
181.
Smoking bans are gaining widespread support in the United States and other countries. While supporters argue that bans are necessary to resolve market failures associated with negative externalities, the Coase Theorem predicts that, under various conditions, private markets internalize negative externalities. We examine the smoking issue within the framework of the Coase Theorem and hypothesize that smoking bans misallocate air space resources shared by smokers and nonsmokers. Because smoking bans shift ownership of scarce resources, they are also hypothesized to transfer income from one party (smokers) to another party (nonsmokers). Supporting evidence for these hypotheses is provided by an examination of a comprehensive smoking ban imposed in San Luis Obispo, CA.  相似文献   
182.
This paper uses anecdotal evidence to identify a group of firms that had significant ties to President Lyndon Johnson and determines the effect of Johnson's unexpected rise to the Presidency on the market value of these firms. The unexpected nature of President Kennedy's death eliminates the confounding event problem typically associated with election results. We are able to identify four separate portfolios of firms that had political ties to Lyndon Johnson. Our research suggests that the market expected significant benefits to accrue to these firms as a result of Johnson's becoming President. When Catholic John Kennedy and Johnson were running together in 1960 a joke hop-scotched around the parties in Texas and Washington that Kennedy had told Johnson, “Lyndon, when we get elected I'm going to dig a tunnel to the Vatican,” and Lyndon had replied, “That's OK with me as long as Brown & Root gets the contract” (Dugger, 1982: 286).  相似文献   
183.
184.
185.
186.
187.
188.
189.
Undergraduate adult children of alcoholics (ACOAs; N=57) were compared to children of nonalcoholic parents (CONAs; N=100) on measures of the Beck Depression Inventory (BDI), selfesteem, and attributional style. ACOA status was determined using the Children of Alcoholics Screening Test (Jones, 1981). ACOAs were found to have significantly higher scores on the BDI and to have significantly lower self-esteem, as measured by the Index of Self-Esteem, than CONAs. ACOAs were also more likely to have a depressive attributional style, in that they perceived failure as more internal, stable, and global than CONAs. Further, females had significantly higher BDI scores than males.Received B.A. from West Virginia University. Research interests: adult children of alcoholics and human sexual behavior.Received Ph.D. from West Virginia University. Research interests: the impact of popular culture on adolescents and the impact of parental conflict on children.Received Ph.D. from University of Massachusetts. Research interests: adolescent suicide risk.  相似文献   
190.
He has served as a consultant to the president’s Foreign Intelligence Advisory Board, the National Security Council, and related agencies of the U.S. government. He has written, coauthored, or edited over sixteen books on intelligence and national security.  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