全文获取类型
收费全文 | 2490篇 |
免费 | 80篇 |
专业分类
各国政治 | 157篇 |
工人农民 | 69篇 |
世界政治 | 227篇 |
外交国际关系 | 162篇 |
法律 | 1045篇 |
中国政治 | 18篇 |
政治理论 | 870篇 |
综合类 | 22篇 |
出版年
2023年 | 14篇 |
2020年 | 34篇 |
2019年 | 37篇 |
2018年 | 57篇 |
2017年 | 67篇 |
2016年 | 73篇 |
2015年 | 52篇 |
2014年 | 50篇 |
2013年 | 394篇 |
2012年 | 39篇 |
2011年 | 57篇 |
2010年 | 56篇 |
2009年 | 60篇 |
2008年 | 68篇 |
2007年 | 60篇 |
2006年 | 73篇 |
2005年 | 67篇 |
2004年 | 82篇 |
2003年 | 72篇 |
2002年 | 68篇 |
2001年 | 50篇 |
2000年 | 40篇 |
1999年 | 38篇 |
1998年 | 54篇 |
1997年 | 39篇 |
1996年 | 33篇 |
1995年 | 54篇 |
1994年 | 43篇 |
1993年 | 45篇 |
1992年 | 33篇 |
1991年 | 35篇 |
1990年 | 40篇 |
1989年 | 44篇 |
1988年 | 40篇 |
1987年 | 41篇 |
1986年 | 39篇 |
1985年 | 35篇 |
1984年 | 41篇 |
1983年 | 32篇 |
1982年 | 36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 | 27篇 |
1973年 | 18篇 |
1969年 | 16篇 |
1968年 | 11篇 |
排序方式: 共有2570条查询结果,搜索用时 7 毫秒
91.
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
92.
William O. Brown Jr. 《Public Choice》1996,86(3-4):247-256
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
93.
94.
95.
96.
William H. Riker George Bittlingmayer David N. Laband Randall G. Holcombe 《Public Choice》1991,72(2-3):237-243
97.
98.
99.
Stephanie I. Bush Mary E. Ballard William Fremouw 《Journal of youth and adolescence》1995,24(2):177-185
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
100.
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