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   656篇
  免费   16篇
财政金融   77篇
工业经济   35篇
计划管理   95篇
经济学   124篇
运输经济   7篇
旅游经济   5篇
贸易经济   182篇
农业经济   22篇
经济概况   112篇
邮电经济   13篇
  2023年   3篇
  2022年   3篇
  2021年   7篇
  2020年   4篇
  2019年   9篇
  2018年   12篇
  2017年   22篇
  2016年   28篇
  2015年   17篇
  2014年   30篇
  2013年   54篇
  2012年   39篇
  2011年   31篇
  2010年   24篇
  2009年   40篇
  2008年   33篇
  2007年   24篇
  2006年   32篇
  2005年   16篇
  2004年   16篇
  2003年   19篇
  2002年   7篇
  2001年   14篇
  2000年   9篇
  1999年   9篇
  1998年   8篇
  1997年   11篇
  1996年   8篇
  1995年   11篇
  1994年   9篇
  1993年   8篇
  1992年   6篇
  1991年   8篇
  1990年   4篇
  1989年   11篇
  1988年   4篇
  1987年   10篇
  1986年   6篇
  1985年   3篇
  1984年   4篇
  1983年   6篇
  1982年   7篇
  1981年   5篇
  1980年   7篇
  1979年   6篇
  1978年   3篇
  1976年   7篇
  1975年   3篇
  1973年   3篇
  1968年   3篇
排序方式: 共有672条查询结果,搜索用时 828 毫秒
151.

The propensity to experience boredom in free time was investigated by exploring relationships with the individual's demographic characteristics, personality, motivational orientation, and affective style assessed through group-administered questionnaires to 999 university students. The self-as-entertainment personality attribute consistently predicted the likelihood that students would be bored, and inverse relationships with extraversion and intrinsic motivational orientation were found for all student groups. Multiple regression analyses revealed that race, ethnicity, and gender were the only significant demographic predictors of the likelihood an individual would be bored in free time. Group similarities and differences in depicting students who were prone to experience boredom in free time are described.  相似文献   
152.
153.
Quality &; Quantity - Lindner’s (Psychologische Beiträge 26:393–415, 1984) test is a generalisation of Fisher’s exact test for 2 × 2 contingency tables to 2 k...  相似文献   
154.
155.
Despite the policy importance of lifelong learning, there is very little hard evidence from the UK on (a) who undertakes lifelong learning and why, and (b) the economic benefits of lifelong learning. This paper uses a rich longitudinal panel data set to look at key factors that determine whether someone undertakes lifelong learning and then models the effect of the different qualifications acquired via lifelong learning on individuals’ economic outcomes, namely wages and the likelihood of being employed. Those who left school with O-level qualifications or above were much more likely to undertake lifelong learning. Undertaking one episode of lifelong learning also increased the probability of undertaking more lifelong learning. We found little evidence of positive wage effects from lifelong learning. However, males who left school with only low-level qualifications do earn substantially more if they undertake a degree via lifelong learning. We also found important positive employment effects from lifelong learning.  相似文献   
156.
Export entry and exit by German firms   总被引:4,自引:1,他引:3  
Export Entry and Exit by German Firms. — While exports have played an important role in German business cycles, little is known about the export supply response of German firms. This paper presents a dynamic model of the export decision by a profit-maximizing firm. Using a panel of German manufacturing plants, we test for the role of plant characteristics and sunk costs in the entry decision. We find evidence for substantial sunk costs: exporting today by a plant increases the probability by 50 percent that the plant will export tomorrow. This advantage depreciates quickly, falling by two-thirds in a year. The authors also find evidence that plant success, as measured by size and productivity, increases the likelihood of exporting.  相似文献   
157.
This note clarifies some aspects of Bernheim's (1986) characterization of Nash and correlated equilibria.  相似文献   
158.
Preface     
The paper examines the main issues surrounding distributional effects in the domains of natural resource management and land policies, agricultural technology and research policies, agricultural market and trade policies, and consumer‐oriented policies, including standards, subsidies, and labeling. Agriculture is drifting into an ever more drastic bifurcation at a global level and within many countries. Correcting that bifurcation will require large investments in rural areas and rural people, in institutions, and in information and biological technologies accessible by the poor in the world's smallholder sector. Large and growing national and international inequalities related to agriculture and rural areas threaten peace, growth, and sustainable development.  相似文献   
159.
160.
While the role of exports in promoting growth in general, and productivity in particular, has been investigated empirically using aggregate data for countries and industries for a long time, only recently have comprehensive longitudinal data at the firm level been used to look at the extent and causes of productivity differentials between exporters and their counterparts which sell on the domestic market only. This paper surveys the empirical strategies applied, and the results produced, in 54 microeconometric studies with data from 34 countries that were published between 1995 and 2006. Details aside, exporters are found to be more productive than non‐exporters, and the more productive firms self‐select into export markets, while exporting does not necessarily improve productivity.  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