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   2594篇
  免费   95篇
各国政治   163篇
工人农民   73篇
世界政治   244篇
外交国际关系   182篇
法律   1080篇
中国政治   20篇
政治理论   905篇
综合类   22篇
  2023年   14篇
  2020年   37篇
  2019年   42篇
  2018年   62篇
  2017年   70篇
  2016年   76篇
  2015年   54篇
  2014年   52篇
  2013年   420篇
  2012年   42篇
  2011年   59篇
  2010年   58篇
  2009年   62篇
  2008年   71篇
  2007年   62篇
  2006年   75篇
  2005年   71篇
  2004年   82篇
  2003年   77篇
  2002年   70篇
  2001年   52篇
  2000年   41篇
  1999年   39篇
  1998年   55篇
  1997年   41篇
  1996年   34篇
  1995年   55篇
  1994年   46篇
  1993年   47篇
  1992年   35篇
  1991年   37篇
  1990年   42篇
  1989年   47篇
  1988年   42篇
  1987年   43篇
  1986年   39篇
  1985年   38篇
  1984年   45篇
  1983年   34篇
  1982年   37篇
  1981年   23篇
  1980年   22篇
  1978年   28篇
  1977年   24篇
  1976年   21篇
  1975年   15篇
  1974年   29篇
  1973年   18篇
  1969年   17篇
  1968年   13篇
排序方式: 共有2689条查询结果,搜索用时 15 毫秒
111.
112.
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   
113.
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   
114.
115.
116.
117.
118.
119.
120.
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   
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