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   15738篇
  免费   334篇
财政金融   2995篇
工业经济   1319篇
计划管理   2635篇
经济学   3325篇
综合类   161篇
运输经济   124篇
旅游经济   275篇
贸易经济   2346篇
农业经济   734篇
经济概况   2140篇
信息产业经济   1篇
邮电经济   17篇
  2021年   108篇
  2020年   177篇
  2019年   232篇
  2018年   335篇
  2017年   320篇
  2016年   300篇
  2015年   211篇
  2014年   342篇
  2013年   1644篇
  2012年   462篇
  2011年   466篇
  2010年   449篇
  2009年   521篇
  2008年   457篇
  2007年   379篇
  2006年   362篇
  2005年   297篇
  2004年   319篇
  2003年   314篇
  2002年   300篇
  2001年   297篇
  2000年   333篇
  1999年   299篇
  1998年   272篇
  1997年   284篇
  1996年   258篇
  1995年   239篇
  1994年   237篇
  1993年   274篇
  1992年   247篇
  1991年   253篇
  1990年   240篇
  1989年   222篇
  1988年   212篇
  1987年   191篇
  1986年   218篇
  1985年   301篇
  1984年   275篇
  1983年   273篇
  1982年   231篇
  1981年   228篇
  1980年   247篇
  1979年   206篇
  1978年   179篇
  1977年   170篇
  1976年   147篇
  1975年   136篇
  1974年   117篇
  1973年   114篇
  1972年   86篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
A procedure is given for the construction of a monotone estimator that dominates a given estimator for a class of discrete distributions with monotone likelihood ratio. This procedure is applied to some empirical Bayes estimators. Monte Carlo results are given that demonstrate the usefulness of monotonizing.  相似文献   
103.
Abstract.  While it is well known that demand elasticities calculated at the macro level will in general differ from those calculated at the micro level because of aggregation effects, there remain the questions of how large the effects are and how they vary with the degree of inequality in the income distribution. We explore these questions with models based on a quadratic version of the Almost Ideal Demand System. We investigate the elasticity differences theoretically and then calibrate the models and generate numerical results, using income data for seven countries with widely different distributions. The aggregation effects are found generally to be rather small, even with highly unequal income distributions.  相似文献   
104.
This study is concerned with one aspect of the family cycle, namely, the transition from young married to young married with small children. The focus is on developing models to forecast entries into this latter stage for the purpose of marketing research. "Using ordinary least squares, forecasting models were estimated for (1) total number of first births, (2) number of white first births, and (3) number of nonwhite first births." Models are estimated for both the United States and California using data from official sources.  相似文献   
105.
On the simple model of a (univariate) random process some general problems of “random logic” are discussed. New random approaches to explorative, normative and systematic (normex) forecasting are developed, and some applications are suggested.  相似文献   
106.
A bstract . Orthodox economics has been quite effective in exploiting equilibrium methodology; equilibrium as a heuristic device, as a theoretical norm, and as a prototype of the scientific method. Also, orthodoxy has contrived the dichotomy of equilibrium-anti-equilibrium to depict institutional thought as being muddled and unscientific. Institutionalists have not successfully countered these attacks, nor have they adequately articulated a comprehensive methodological alternative to orthodoxy. Institutionalists have paid too much attention to the methodological components of institutionalism and have neglected the articulation of a guiding, overall methodology. It is proposed that institutionalists recast the methodological debate by expanding the arena from equilibrium-anti-equilibrium analysis to the broader context of closed versus open systems analysis. This would both help expose the methodological weaknesses of orthodox economics, and demonstrate the relevance and power of institutionalism for socioeconomic investigation.  相似文献   
107.
In a model of economic ‘clubs’, size is fixed and members consuming a public good raise the question of composition; with whom would they rather consume? This depends on the way collective consumption is financed, and three results are proven With a poll tax, clubs must be homogeneous in income for all to be satisfied With a marginal benefit (Lindahl) tax, no consumer is ever satisfied with any composition; and with an income tax, at least one consumer in each club is always dissatisfied. Satisfaction implies there exists no club composition preferred to the existing one.  相似文献   
108.
In recent years there has been a growing number of input-output models of economies ranging in scale from the rural to the national. While offering invaluable insights into the interaction of sectors within an economy, the input-output model suffers from the fact that its coefficient values are altered over time due particularly to technological change. Two of the prominent techniques designed to update these technical coefficients, the RAS and linear programming methods, are compared herein with regard to changes in U.S. national coefficients between 1963 and 1967. Suggestions for improvements to the latter method are outlined.  相似文献   
109.
110.
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