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   13168篇
  免费   401篇
  国内免费   15篇
管理学   1605篇
民族学   80篇
人才学   1篇
人口学   1143篇
丛书文集   155篇
理论方法论   1221篇
综合类   759篇
社会学   6965篇
统计学   1655篇
  2023年   71篇
  2021年   107篇
  2020年   208篇
  2019年   254篇
  2018年   328篇
  2017年   476篇
  2016年   323篇
  2015年   264篇
  2014年   313篇
  2013年   2054篇
  2012年   486篇
  2011年   475篇
  2010年   403篇
  2009年   336篇
  2008年   404篇
  2007年   419篇
  2006年   424篇
  2005年   373篇
  2004年   289篇
  2003年   254篇
  2002年   270篇
  2001年   340篇
  2000年   283篇
  1999年   273篇
  1998年   200篇
  1997年   168篇
  1996年   158篇
  1995年   172篇
  1994年   158篇
  1993年   162篇
  1992年   185篇
  1991年   186篇
  1990年   183篇
  1989年   159篇
  1988年   167篇
  1987年   191篇
  1986年   147篇
  1985年   157篇
  1984年   175篇
  1983年   151篇
  1982年   151篇
  1981年   121篇
  1980年   111篇
  1979年   122篇
  1978年   95篇
  1977年   79篇
  1976年   93篇
  1975年   109篇
  1974年   84篇
  1972年   62篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
Building on recent efforts to bring a socio-political perspective to social capital research, we develop and test a multilevel framework that explains why middle managers who occupy brokerage positions differ in their ability and willingness to engage in entrepreneurial behavior. More specifically, we provide a contextualized understanding of the links among middle managers' brokerage, their political-support ties, and their personal initiative. Results derived from data on 383 middle managers and 72 top managers in 34 business units indicate that political-support ties with top managers strengthen the relationship between middle managers’ brokerage and personal initiative. However, this positive effect depends on the social capital resources available in the focal business unit. It is attenuated in business units with a supportive and trusting social context and amplified in business units with high levels of internal connectedness. By uncovering these incompatibilities and complementarities, our study demonstrates the value of accounting for different social capital configurations and the interplay of their inherent social capital resources when examining the effects of brokerage on corporate entrepreneurship.  相似文献   
152.
153.
154.
155.
156.
This study explores differences in inter-household exchange of goods and services in Anglo- and Mexican-American families controlling for income level and for ethnicity. The extent of such exchange, its perceived importance to the family's quality of life, satisfaction with the exchange, and the relation of persons in the exchange process are examined. Significant differences are found more often between higher income Anglo- and Mexican-Americans than between low-income families, both in the family providing goods and services for others and in the receipt of them. Higher income Mexican-American families are more likely than their Anglo- counterparts to exchange with relatives. Ethnic effects are more prevalent in higher income households than in low-income households. Economic effects are more predominant than ethnic effects.This study contributes to interregional Agricultural Experiment Station Research Project NC-128, Quality of Life as Influenced by Area of Residence. Cooperating states: Arizona, California, Colorado, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Nevada, Ohio, Texas.Flora L. Williams' current research interests include income adequacy, financial problems, and indicators of change in economic well-being. She is an Associate Professor, Consumer Sciences and Retailing, Purdue University, West Lafayette, IN 47907.  相似文献   
157.
Factors related to time spent in work roles are investigated for a sample of 685 wives living on family farms in seven southern and midwestern states. Data were collected in a comprehensive mail survey. Results show that variables reflecting management are the most important predictors of wife's time use satisfaction. Wife's satisfaction is also significantly related to her education and nonfarm employment. Conclusions indicate that, although wives on family farms experience work-role overload relative to their husbands, they are satisfied with their time contributions to the home/farm situation.Jeanne L. Hafstrom is Associate Professor, Consumer Sciences Division, University of Illinois, 161 Bevier Hall, 905 So. Goodwin, Urbana, IL 61801. She received her Ph.D. from the University of Illinois. Her current research interests include economic well-being and the quality of life.MaryAnn Paynter is Assistant Professor and Family Economics Extension Specialist, Consumer Sciences Division, University of Illinois, 547 Bevier Hall, 905 So. Goodwin, Urbana, IL 61801. She received her Ph.D. from Pennsylvania State University. Her current research interests include family resource management strategies.This study was part of S-191 Regional Research Project Farm Wife's External Employment, Family Economic Productivity and Family Functioning, and Project No. 60-0366 supported by the Agricultural Experiment Station, College of Agriculture, University of Illinois at Urbana-Champaign.  相似文献   
158.
159.
Population growth,farmland, and the long-run standard of living   总被引:1,自引:0,他引:1  
This paper studies the natural-resources element in the theory of population growth over the very long run. In the context of the stock of land and Malthusian crises in earlier times, the model shows how resources have become more available rather than more scarce, even as population and income have increased.The paper sketches a mechanism which, added to the Malthusian system, leads to entirely different conclusions than does the Malthusian system. Using the illustration of food and land, change in knowledge and hence in the stock of resources is made a function of the stock of knowledge and the price of resources. The speed of adjustment depends on the economic and social climate for the development of new knowledge. Population growth first raises food and land prices, which then stimulate the creation of new resources, eventually leading to less scarcity of resources and lower prices than originally prevailed.That is, population growth creates new problems which in the short run constitute additional burdens which, in the longer run, lead to new developments that leave people better off than if the problems had never arisen.This paper benefitted from being presented in earlier draft at a Population Association of America meeting, to the Economic History workshop at the University of Illinois, and to a seminar of the International Union for the Scientific Study of Population in New Delhi. We appreciate valuable comments on earlier drafts from Stanley Engerman, E. L. Jones, William McNeill, and two anonymous referees. Gunter Steinmann acknowledges financial support from the Volkswagen Foundation and a travel grant from Fulbright Commission.  相似文献   
160.
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