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   21079篇
  免费   469篇
财政金融   4255篇
工业经济   1663篇
计划管理   3252篇
经济学   4550篇
综合类   596篇
运输经济   175篇
旅游经济   351篇
贸易经济   3522篇
农业经济   889篇
经济概况   2213篇
信息产业经济   4篇
邮电经济   78篇
  2023年   107篇
  2021年   142篇
  2020年   254篇
  2019年   387篇
  2018年   421篇
  2017年   473篇
  2016年   411篇
  2015年   330篇
  2014年   512篇
  2013年   2262篇
  2012年   605篇
  2011年   730篇
  2010年   647篇
  2009年   683篇
  2008年   687篇
  2007年   581篇
  2006年   471篇
  2005年   501篇
  2004年   466篇
  2003年   485篇
  2002年   480篇
  2001年   456篇
  2000年   473篇
  1999年   403篇
  1998年   385篇
  1997年   408篇
  1996年   342篇
  1995年   334篇
  1994年   350篇
  1993年   387篇
  1992年   357篇
  1991年   321篇
  1990年   282篇
  1989年   252篇
  1988年   237篇
  1987年   227篇
  1986年   244篇
  1985年   347篇
  1984年   377篇
  1983年   321篇
  1982年   325篇
  1981年   320篇
  1980年   298篇
  1979年   300篇
  1978年   249篇
  1977年   243篇
  1976年   217篇
  1975年   154篇
  1974年   167篇
  1973年   143篇
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
61.
62.
Employment,schooling and productivity growth   总被引:1,自引:1,他引:0  
Summary This paper presents an empirical analysis of labour demand and labour productivity growth in The Netherlands. Assuming an aggregate production function with as factors capital and 3 types of labour, distinguished by educational attainment, cost minimization leads to a set of 3 labour demand relations to be estimated on time series data. Using the estimates and the implied elasticities, aggregate labour productivity growth is decomposed into factor substitution, autonomous factors, labour time shortening, economies of scale, utilization rates and the increased educational level of the working population. The contributions of substitution, utilization rates and education appear to be substantial, notably in the seventies.

List of symbols

Variables a i Efficiency index of skill leveli - C production - h i working-time index for skill leveli - g i steady-state growth rate of skill leveli - K capital stock - L i employment volume of skill leveli - L i * desired level of labour skill leveli - p output price - p * desired output price - s i * long-run static labour shares in the production value - p k rental price of capital - P index of total factor productivity - P l index of labour productivity - u i utilization rate of skill leveli - u k utilization rate of capital - w i wage rate for skill leveli - y production volume - y yij Hicks partial elasticities of complementarity - i steady-state cost share of skill leveli - k Bk steady-state cost share of capital - f lf highest level price index in cost function nesting - g 4 intermediate level price index in cost function nesting - h 4 lowest level price index in cost function nesting - i steady-state relative wage share of skill leveli - ij Allen partial elasticities of substitution Parameters d i l adjustment speed of skill leveli - d p price adjustment speed - M mark-up on marginal costs - scale elasticity of production - i distribution parameter in cost function,i = 3, g - i distribution parameter in cost function,i = k, h - i distribution parameter in cost function,i =1, 2 - i autonomous labour productivity growth for skill leveli - i cost share of skill level in base year - f production cost index in base year - i hours elasticity in labour efficiency index - group elasticity of substitution betweenL 3 and (K, (L 1,L 2)) - g Og group elasticity of substitution betweenK and (L 1,L 2) - h 6h group elasticity of substitution betweenL 1 andL 2 We would like to thank B. Downey, G.M.M. Gelauff, A. Nieuwenhuis, J.M.M. Ritzen, J.C. Siebrand and an unknown referee for helpful comments on earlier drafts.  相似文献   
63.
The various agricultural practices employed in eastern Maputaland are described.

Agricultural strategies utilized in Maputaland are low in productivity but aim to minimize risk. The area is marginal for agriculture as soils are sandy and rainfall unreliable. Insects and plant diseases accentuate the problem. Infrastructure is lacking in the area. Traditional agricultural systems predominate.

Farming in the area is generally of a subsistence nature and can be divided into gardening, swamp farming and field cropping. Steps towards modernization of agriculture must take into account all existing constraints.  相似文献   

64.
65.
Responding to donor complaints takes great care. But know who's complaining and keep things in perspective.  相似文献   
66.
Yankelovich D 《Fortune》1992,126(7):102-4, 108
The public's thinking on issues progresses through seven predictable stages, the dean of American pollsters finds. Politicians make a big mistake just looking at raw numbers.  相似文献   
67.
68.
This paper discusses the impact of a redistribution of current income from the White to the Black population on the distribution of sectoral output, and total employment by means of a semi‐closed input‐output model.

The results show that a redistribution of current income towards Black households — which no doubt will have positive social and political repercussions — has a non‐negative effect on GDP and a definite positive effect on the performance of sectors with a high private consumption expenditure component, as well as on total employment.  相似文献   

69.
70.
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