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   13435篇
  免费   206篇
管理学   2011篇
民族学   58篇
人才学   2篇
人口学   1292篇
丛书文集   62篇
理论方法论   1251篇
综合类   153篇
社会学   6140篇
统计学   2672篇
  2020年   202篇
  2019年   250篇
  2018年   303篇
  2017年   401篇
  2016年   330篇
  2015年   229篇
  2014年   325篇
  2013年   2216篇
  2012年   422篇
  2011年   389篇
  2010年   307篇
  2009年   312篇
  2008年   305篇
  2007年   340篇
  2006年   304篇
  2005年   346篇
  2004年   354篇
  2003年   316篇
  2002年   332篇
  2001年   334篇
  2000年   299篇
  1999年   295篇
  1998年   234篇
  1997年   223篇
  1996年   211篇
  1995年   193篇
  1994年   189篇
  1993年   195篇
  1992年   212篇
  1991年   199篇
  1990年   174篇
  1989年   167篇
  1988年   162篇
  1987年   139篇
  1986年   143篇
  1985年   169篇
  1984年   168篇
  1983年   175篇
  1982年   152篇
  1981年   136篇
  1980年   131篇
  1979年   138篇
  1978年   131篇
  1977年   122篇
  1976年   111篇
  1975年   109篇
  1974年   90篇
  1973年   86篇
  1972年   60篇
  1971年   69篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Will a more risk-averse individual spend more or less to improve probabilities, say on marketing efforts that enhance the chance of a sale? For any two payoffs and starting probabilities, the answer is unfortunately indeterminate. However, interpreting gambling as increasing small chances of good outcomes and insurance as reducing small chances of bad outcomes, the more risk-averse individual will pay less (more) to gamble (insure). We find a critical switching probability that depends on the individuals and outcomes involved. If the good outcome is less (more) likely than this critical value, the expenditures represent gambling (insurance).  相似文献   
992.
993.
994.
995.
996.
Since the early 1980s Australian public policy has undergone the most major transformation since Federation. This transformation has been underwritten by two key principles: liberalism – the view that citizens are autonomous individual actors whose interests are best served when they are free from coercive government interventions into individual action; and marketisation – the belief that free markets are arenas which best enable individual autonomy and produce efficient economic outcomes. These principles define ‘neoliberalism’ or ‘hard liberalism‘. After summarising the major policy changes identified with neoliberalism in Australia, the paper introduces a new research project that examines its impact on socioeconomic inequality, gender inequality and politics and culture. Inspection of relevant data indicates that there are important trends in inequality, public opinion and political behaviour that warrant this investigation.  相似文献   
997.
Editors' introduction: Walter Stephan's interest in intergroup relations grew from his early involvement in intercultural relations. He spent substantial time in Latin America as well as Vietnam during his college years. These experiences influenced his choice to study social psychology at the University of Minnesota. His first foray into intergroup relations came with his move to Austin, Texas, in 1971. A Court mandate ordered schools to be desegregated, and Stephan examined the effects of school desegregation there on students' self-esteem and intergroup attitudes. His field research on the effects of desegregation as well as classroom interventions to improve intergroup relations was complemented by his laboratory research on intergroup biases, intergroup threat, intergroup anxiety, and empathy. Stephan brings this lifetime of involvement in both basic and applied research, and deep concern for effective practice and humanistic philosophy, to his commentary. He opens the commentaries with an elucidation of the difficulties in, and benefits of, the central thrust of this volume: the researcher-practitioner collaboration. He paints portraits of practitioners, researchers, and practitioner-researchers, and classifies articles in this issue accordingly. He notes the difficulties among the various parties interested in improving intergroup relations, spanning from simple lack of knowledge to lack of contact to lack of meaningful ways to interact. However, potential benefits of collaboration are abundant for all parties, and Stephan proposes a number of ways in which such partnerships could be actualized.  相似文献   
998.
Two-person sequential bargaining behavior with exogenous breakdown   总被引:1,自引:0,他引:1  
We examine bargaining behavior in a noncooperative game in which players alternate in making and responding to proposals over the division of a given surplus. Although the number of bargaining periods is unlimited and time is not discounted, the bargaining is subject to exogenous breakdown at each period with a fixed probability which is common knowledge. We manipulate three probabilities of break-down in a between-subjects design that allows comparison with previous studies of two-person bargaining with time discounting. Assuming that subjects maximize expected utility, and this utility is measured by monetary payoffs, our results reject both the subgame perfect equilibrium and equal split solutions. Data analyses reveal that a substantial percentage of subjects behave adaptively in that they systematically search for the highest acceptable demands.  相似文献   
999.
The technological approach to risk regulation seeks to lessen the incidence of mortality and morbidity by modifying environmental conditions. Insofar as risk-taking behavior is purposive, social scientists have predicted that technological progress may be negated by various forms of risk compensation. The validity of this hypothesis is tested in the transportation sector with data from the U.S. on the effects of new mandatory safety-belt-use laws. A fixed-effects model of traffic fatality counts is estimated using pooled data from 50 states during the 1975–1987 period. Results suggest that such laws have reduced mortality among car occupants to a degree that is compatible with the predictions of technologists. However, there is weak evidence of increased mortality among some nonoccupants, a pattern predicted by risk-compensation theorists. The lifesaving effects of belt-use laws are largest in states that permit primary police enforcement and appear to be somewhat larger for front-seat occupants age 21 and under. Although offsetting behavior appears to be small relative to lifesaving effects, it may take several more years for any compensatory behavior to achieve a new equilibrium.This research was supported in part by a grant from the Centers for Disease Control to the New England Injury Prevention Research Center.  相似文献   
1000.
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