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   17580篇
  免费   354篇
财政金融   3161篇
工业经济   1313篇
计划管理   2920篇
经济学   3752篇
综合类   150篇
运输经济   108篇
旅游经济   226篇
贸易经济   3041篇
农业经济   918篇
经济概况   2255篇
信息产业经济   1篇
邮电经济   89篇
  2021年   129篇
  2020年   195篇
  2019年   280篇
  2018年   400篇
  2017年   386篇
  2016年   420篇
  2015年   280篇
  2014年   416篇
  2013年   1629篇
  2012年   564篇
  2011年   571篇
  2010年   475篇
  2009年   578篇
  2008年   518篇
  2007年   485篇
  2006年   431篇
  2005年   376篇
  2004年   378篇
  2003年   388篇
  2002年   361篇
  2001年   331篇
  2000年   345篇
  1999年   313篇
  1998年   304篇
  1997年   271篇
  1996年   290篇
  1995年   259篇
  1994年   269篇
  1993年   253篇
  1992年   286篇
  1991年   269篇
  1990年   266篇
  1989年   237篇
  1988年   194篇
  1987年   195篇
  1986年   223篇
  1985年   310篇
  1984年   288篇
  1983年   243篇
  1982年   267篇
  1981年   244篇
  1980年   235篇
  1979年   227篇
  1978年   201篇
  1977年   185篇
  1976年   177篇
  1975年   177篇
  1974年   131篇
  1973年   131篇
  1972年   127篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
The paper seeks to evaluate the evidence on the employment effectsof the collective working-time reductions in Europe over thepast 20 years. While theoretical analyses produce contradictoryassessments, most empirical studies show positive employmenteffects but take insufficient account of these conditions underwhich the reductions in working time were implemented. Theseconditions for the success of collective working-time reductionsinclude an active training policy designed to minimise skillshortages in the labour market, the modernisation of work organisation,wage increases in conjunction with productivity gains and amore equal income distribution.  相似文献   
12.
13.
14.
Two of the main forces driving European emigration in the late nineteenth century were real wage gaps between sending and receiving regions and demographic booms in the low‐wage sending regions. Our new estimates of net migration for the countries of sub‐Saharan Africa show that exactly the same forces driving African across‐border migration are at work today. The results suggest that rapid growth in the cohort of potential young emigrants, population pressure on the resource base, and slow economic growth are likely to intensify the pressure for migration out of Africa and into high‐wage OECD countries over the next two decades.  相似文献   
15.
Linear predictability of stock market returns has been widely reported. However, recently developed theoretical research has suggested that due to the interaction of noise and arbitrage traders, stock returns are inherently non‐linear, whereby market dynamics differ between small and large returns. This paper examines whether an exponential smooth transition threshold model, which is capable of capturing this non‐linear behaviour, can provide a better characterization of UK stock market returns than either a linear model or an alternate non‐linear model. The results of both in‐sample and out‐of‐sample specification tests support the exponential smooth transition threshold model and hence the belief that investor behaviour does differ between large and small returns.  相似文献   
16.
Much of the discussion about banking and commerce in America has failed to make several crucial distinctions and has not accounted for many arrangements that have promoted the mixing of these activities. We investigate the history of banking and commerce in the United States, looking both at bank control of commercial firms and commercial firms' control of banks. We trace how these controls have changed with shifting definitions of "bank" and changing methods of "control." Despite the regulations prohibiting some arrangements that promote financial control, we find evidence of extensive linkages between banking and commerce in the United States. These linkages usually build on devices that are very close substitutes to the arrangements prohibited by law. Altogether, our findings question the often made claim that traditionally banking in the United States has been separated from commerce. Furthermore, given that research on Japan and Germany has shown that the mixing of banking and commerce matters for a variety of issues, our evidence also raises some questions on similar research in the United States which makes the simplifying assumption that these industries are separated.  相似文献   
17.
18.
19.
20.
Agriculture remains sensitive to variation in rainfall and temperature. Fortunately, our ability to predict the lower frequency variation in the earth's atmosphere is increasing rapidly. While information cannot affect the underlying source of variability, it allows unexpected shocks to be anticipated and acted upon. This paper develops and analyzes an intertemporal Ricardian trade model with Bayesian beliefs. Results in this paper show that improved climate prediction reduces expected prices, but increases price variability. In addition, trade is crucial to realizing the potential benefits of climate prediction. The value of climate prediction is highest with both storage and trade, and falls by over 300% when a country is in autarky.  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