全文获取类型
收费全文 | 30966篇 |
免费 | 300篇 |
国内免费 | 3篇 |
专业分类
财政金融 | 5218篇 |
工业经济 | 1728篇 |
计划管理 | 4957篇 |
经济学 | 6757篇 |
综合类 | 580篇 |
运输经济 | 76篇 |
旅游经济 | 222篇 |
贸易经济 | 6972篇 |
农业经济 | 613篇 |
经济概况 | 3404篇 |
信息产业经济 | 44篇 |
邮电经济 | 698篇 |
出版年
2020年 | 155篇 |
2019年 | 214篇 |
2018年 | 2519篇 |
2017年 | 2285篇 |
2016年 | 1504篇 |
2015年 | 341篇 |
2014年 | 440篇 |
2013年 | 1487篇 |
2012年 | 928篇 |
2011年 | 2318篇 |
2010年 | 2177篇 |
2009年 | 1863篇 |
2008年 | 1893篇 |
2007年 | 2159篇 |
2006年 | 426篇 |
2005年 | 708篇 |
2004年 | 682篇 |
2003年 | 794篇 |
2002年 | 524篇 |
2001年 | 337篇 |
2000年 | 302篇 |
1999年 | 270篇 |
1998年 | 254篇 |
1997年 | 219篇 |
1996年 | 233篇 |
1995年 | 202篇 |
1994年 | 192篇 |
1993年 | 236篇 |
1992年 | 211篇 |
1991年 | 201篇 |
1990年 | 178篇 |
1989年 | 187篇 |
1988年 | 164篇 |
1987年 | 162篇 |
1986年 | 165篇 |
1985年 | 274篇 |
1984年 | 259篇 |
1983年 | 234篇 |
1982年 | 220篇 |
1981年 | 209篇 |
1980年 | 217篇 |
1979年 | 206篇 |
1978年 | 176篇 |
1977年 | 189篇 |
1976年 | 160篇 |
1975年 | 151篇 |
1974年 | 140篇 |
1973年 | 141篇 |
1971年 | 114篇 |
1970年 | 112篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
Expressions for marginal distribution functions of sequential order statistics and generalized order statistics are presented without any restrictions imposed on the model parameters. The results are related to the relevation transform, to the distribution of the product of Beta distributed random variables, and to Meijers G-functions. Some selected applications in the areas of moments, conditional distributions, recurrence relations, and reliability properties are shown.
Key words:Order statistics; Generalized order statistics; Sequential order statistics; Record values; Distribution theory; Meijers G-function; Recurrence relations; Reliability properties. 相似文献
112.
John H. Beck 《Journal of urban economics》1983,13(2):127-146
In previous discussions it has been argued that tax competition between local governments results in a tax burden on business that is less than the cost of public services for business and in suboptimal levels of public expenditures for residents. However, this conclusion has never been substantiated by a full theoretical treatment. Here a theoretical model of tax competition is developed between metropolitan areas, with labor perfectly immobile and two local public goods, one for residents and one for business. For “plausible” parameter values, numerical solutions of the optimality conditions are computed by means of a nonlinear programming algorithm. 相似文献
113.
Simulated annealing: An introduction 总被引:1,自引:0,他引:1
114.
The present paper deals with two types of generalized general binomial (binomial or negative binomial) distributions: (i) a univariate general binomial generalized by a bivariate distribution and (ii) a bivariate general binomial generalized by two independent univariate distributions. The probabilities, moments, conditional distributions and regression functions for these distributions are obtained in terms of bipartitional polynomials. Moreover recurrence relations for the probabilities and moments, independent of the bipartitional polynomials, are given. Finally these general results are applied to the (i) Binomial-Bivariate Poisson and (ii) Bivariate Binomial-Poissons distributions. 相似文献
115.
Kim C. Border 《Economic Theory》2007,31(1):167-181
This note uses the Theorem of the Alternative to prove new results on the implementability of general, asymmetric auctions,
and to provide simpler proofs of known results for symmetric auctions. The tradeoff is that type spaces are taken to be finite. 相似文献
116.
117.
118.
119.
120.