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   3622篇
  免费   145篇
  2020年   57篇
  2019年   68篇
  2018年   87篇
  2017年   87篇
  2016年   124篇
  2015年   100篇
  2014年   78篇
  2013年   1079篇
  2012年   103篇
  2011年   138篇
  2010年   137篇
  2009年   124篇
  2008年   87篇
  2007年   122篇
  2006年   117篇
  2005年   45篇
  2004年   62篇
  2003年   45篇
  2002年   51篇
  2001年   63篇
  2000年   31篇
  1999年   41篇
  1998年   34篇
  1997年   28篇
  1996年   24篇
  1995年   40篇
  1994年   31篇
  1993年   36篇
  1992年   32篇
  1991年   22篇
  1990年   26篇
  1989年   19篇
  1988年   34篇
  1987年   36篇
  1986年   32篇
  1985年   34篇
  1984年   45篇
  1983年   28篇
  1982年   32篇
  1981年   37篇
  1980年   37篇
  1979年   26篇
  1978年   28篇
  1977年   23篇
  1976年   27篇
  1975年   16篇
  1974年   15篇
  1973年   17篇
  1972年   26篇
  1970年   19篇
排序方式: 共有3767条查询结果,搜索用时 234 毫秒
1.
2.
3.
ABSTRACT. This paper examines the RAS, Mc Menamin and Haring, and Lagrange-multiplier update methods in the context of the dual accounting system of the rectangular input-output model. The motivation was to determine if the additional information contained in the dual system is exploitable, while maintaining the integrity of the rectangular structure with all its advantages. Tests were conducted on the performance of the various algorithms for a derivative Leontief model relative to their performance on the rectangular structure. The results obtained for rectangular tables were generally better than those obtained for the more conventional Leontief ones.  相似文献   
4.
5.
6.
7.
Results of a combined archaeological and analytical project of Late Neolithic/Early Bronze Age copper, bronze and lead artefacts from four distinct areas of mainland Greece are presented. The aim of the study is to understand better the stages of technological development of each region, their possible ore sources and also to assess any external contribution to or internal evolution of their metallurgy. Interesting results which could challenge the established view of Late Neolithic/Early Bronze Age metallurgy in the Greek mainland are presented.  相似文献   
8.
ABSTRACT This paper investigates the implication of production-technology uncertainty for the exclusion theorem. The paper presents the result that the risk-averse firm facing production technology uncertainty prefers an intermediate location to avoid risk under certain conditions. The firm chooses an intermediate location (over a corner location) particularly if its degree of risk aversion overwhelms the inherent convexity of profit with respect to location. The latter depends, in turn, on the structure of production technology characterized by the elasticity of substitution and returns to scale parameters.  相似文献   
9.
ABSTRACT. This paper incorporates an exogenous taxing and service-providing public sector into a dynamic residential land-use model in order to examine how local-government fiscal policies alter the pace and pattern of residential development. The model is used to derive the comparative-dynamic responses to variations in the income, sales, and property taxes and public-service time paths. The results show how tax and expenditure effects systematically depend upon the anticipated relative growth rates in rents to alternative uses and vary across locations within a given urban area as well as across urban areas themselves.  相似文献   
10.
ABSTRACT. This paper introduces the household interactive variable input-output (HIVIO) model to measure the effect of cost variation on industrial outputs. The model produces a variety of cost elasticities that separate out impacts on industrial prices, imports, and outputs, with “own” and “cross” elasticity components. Like the conventional input-output multipliers, these cost elasticities can be useful parameters to evaluate the substituting behavior of firms and consumers. By using the 1980 Korean input-output transactions table, we find the wage and import price effects on industrial prices, outputs, and import demands.  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