全文获取类型
收费全文 | 25419篇 |
免费 | 578篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 4871篇 |
工业经济 | 1774篇 |
计划管理 | 3844篇 |
经济学 | 5625篇 |
综合类 | 388篇 |
运输经济 | 194篇 |
旅游经济 | 471篇 |
贸易经济 | 3880篇 |
农业经济 | 1343篇 |
经济概况 | 3549篇 |
信息产业经济 | 1篇 |
邮电经济 | 58篇 |
出版年
2021年 | 145篇 |
2020年 | 272篇 |
2019年 | 433篇 |
2018年 | 515篇 |
2017年 | 549篇 |
2016年 | 563篇 |
2015年 | 324篇 |
2014年 | 568篇 |
2013年 | 2631篇 |
2012年 | 769篇 |
2011年 | 845篇 |
2010年 | 713篇 |
2009年 | 808篇 |
2008年 | 778篇 |
2007年 | 677篇 |
2006年 | 615篇 |
2005年 | 524篇 |
2004年 | 543篇 |
2003年 | 494篇 |
2002年 | 553篇 |
2001年 | 475篇 |
2000年 | 479篇 |
1999年 | 473篇 |
1998年 | 437篇 |
1997年 | 446篇 |
1996年 | 435篇 |
1995年 | 376篇 |
1994年 | 385篇 |
1993年 | 414篇 |
1992年 | 423篇 |
1991年 | 413篇 |
1990年 | 340篇 |
1989年 | 314篇 |
1988年 | 303篇 |
1987年 | 320篇 |
1986年 | 317篇 |
1985年 | 485篇 |
1984年 | 450篇 |
1983年 | 414篇 |
1982年 | 393篇 |
1981年 | 356篇 |
1980年 | 399篇 |
1979年 | 334篇 |
1978年 | 283篇 |
1977年 | 268篇 |
1976年 | 208篇 |
1975年 | 247篇 |
1974年 | 199篇 |
1973年 | 190篇 |
1972年 | 133篇 |
排序方式: 共有10000条查询结果,搜索用时 984 毫秒
191.
An Erratum for this article has been published in Journal of Applied Econometrics 18(2) 2003, 249 Previous empirical work on corporate growth rates using cross‐section or short‐panel econometric techniques suggests that growth rates are random but that some degree of mean reversion exists. This means that size differences between firms are transitory. Another, more natural way to explore the long‐run distribution of firm sizes is to examine data on the growth of particular firms over long periods of time. Using a sample of 147 UK firms observed continually for more than 30 years, our conclusions are that growth rates are highly variable over time and that differences in growth rates between firms do not persist for very long. Further, firms show no tendency to converge to either a common size or to a pattern of stable size differences over time. These results are compared and contrasted with standard approaches that suggest that firms reach and maintain stable positions in a skewed size distribution. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
192.
A. Pr. t. d. H. 《De Economist》1872,21(2):1057-1062
193.
194.
195.
196.
A. S. Makekadyrova 《Studies on Russian Economic Development》2008,19(2):209-211
The paper considers procedural aspects of land potential estimation when forming tourist and recreation territories allotted for tourist and recreation zones. 相似文献
197.
Bayesian MCMC Mapping of Quantitative Trait Loci in a Half-sib Design: a Graphical Model Perspective
N.A. Sheehan B. Gulbrandtsen M.S. Lund D.A. Sorensen 《Revue internationale de statistique》2002,70(2):241-267
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example. 相似文献
198.
199.
Recreation Demand and Residential Location 总被引:2,自引:0,他引:2
We use the properties of competitive location equilibrium to study the demand for recreation and the choice of primary residence location. Location-specific recreation and employment lead to pooling equilibria in which consumers reside according to their preference for recreation. In general, the stronger the taste for recreation, the greater the attraction of living close to the recreation site and the lower the demand for other goods, including housing. We explore the effects of trip frequency, trip length, and recreation cost on the spatial distribution of consumers. We also consider the effect of the wage rate on recreation and location demands. 相似文献
200.