全文获取类型
收费全文 | 11045篇 |
免费 | 227篇 |
专业分类
财政金融 | 1949篇 |
工业经济 | 835篇 |
计划管理 | 1897篇 |
经济学 | 2647篇 |
综合类 | 138篇 |
运输经济 | 72篇 |
旅游经济 | 126篇 |
贸易经济 | 1555篇 |
农业经济 | 509篇 |
经济概况 | 1488篇 |
邮电经济 | 56篇 |
出版年
2020年 | 110篇 |
2019年 | 173篇 |
2018年 | 194篇 |
2017年 | 245篇 |
2016年 | 227篇 |
2015年 | 131篇 |
2014年 | 248篇 |
2013年 | 1021篇 |
2012年 | 301篇 |
2011年 | 337篇 |
2010年 | 266篇 |
2009年 | 367篇 |
2008年 | 288篇 |
2007年 | 257篇 |
2006年 | 226篇 |
2005年 | 233篇 |
2004年 | 204篇 |
2003年 | 243篇 |
2002年 | 204篇 |
2001年 | 214篇 |
2000年 | 231篇 |
1999年 | 227篇 |
1998年 | 197篇 |
1997年 | 212篇 |
1996年 | 194篇 |
1995年 | 163篇 |
1994年 | 171篇 |
1993年 | 194篇 |
1992年 | 198篇 |
1991年 | 191篇 |
1990年 | 195篇 |
1989年 | 167篇 |
1988年 | 161篇 |
1987年 | 158篇 |
1986年 | 172篇 |
1985年 | 201篇 |
1984年 | 187篇 |
1983年 | 179篇 |
1982年 | 164篇 |
1981年 | 181篇 |
1980年 | 164篇 |
1979年 | 184篇 |
1978年 | 146篇 |
1977年 | 138篇 |
1976年 | 125篇 |
1975年 | 91篇 |
1974年 | 97篇 |
1973年 | 100篇 |
1972年 | 76篇 |
1971年 | 60篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
121.
122.
Simulated annealing: An introduction 总被引:1,自引:0,他引:1
123.
P. B. Beaumont 《Industrial Relations Journal》1991,22(4):300-308
Here the author reviews the stated positions and responses of unions towards employer initiated human resource management developments. The information reviewed is drawn from Canada, Britain and the USA, with some differences being apparent between countries. 相似文献
124.
Gauss M. Cordeiro Denise A. Botter Lúcia P. Barroso Silvia L. P. Ferrari 《Statistica Neerlandica》2003,57(4):391-409
We develop three corrected score tests for generalized linear models with dispersion covariates, thus generalizing the results of Cordeiro , Ferrari and Paula (1993) and Cribari-Neto and Ferrari (1995) . We present, in matrix notation, general formulae for the coefficients which define the corrected statistics. The formulae only require simple operations on matrices and can be used to obtain analytically closed-form corrections for score test statistics in a variety of special generalized linear models with dispersion covariates. They also have advantages for numerical purposes since our formulae are readily computable using a language supporting numerical linear algebra. Two examples, namely, iid sampling without covariates on the mean or dispersion parameter oand one-way classification models, are given. We also present some simulations where the three corrected tests perform better than the usual score test, the likelihood ratio test and its Bartlett corrected version. Finally, we present a numerical example for a data set discussed by Simonoff and Tsai (1994) . 相似文献
125.
126.
We consider whether oil prices can account for business cycle asymmetries. We test for asymmetries based on the Markov switching
autoregressive model popularized by Hamilton (1989), using the tests devised by Clements and Krolzig (2000). We find evidence
against the conventional wisdom that recessions are more violent than expansions: while some part of the downturn in economic
activity that characterises recessionary periods can be attributed to dramatic changes in the price of oil, post-War US economic
growth is characterized by the steepness of expansions.
First Version Received: December 2000/Final Version Received: September 2001 相似文献
127.
C. P. Harris 《The Economic record》1962,38(82):183-197
128.
This paper contributes to the literature on integovernmental competition in two ways. First, the institutional setting within which public services are delivered is analyzed with respect to the impact on the quality of services provided. Previous studies have measured competition only in terms of governmental structure, ignoring the issue of service quality and the potential for differentiating local governmental jurisdictions along quality dimensions. Second, the outcome of competition is defined in terms of service quality. Previous studies generally have measured the outcome of competition by examining the fiscal effects of fragmentation and accountability through service costs or tax revenue impacts. School districts were used to empirically test quality competition. Student academic performance was modeled as a function of control variables and the degree of competition from neighboring school districts. Academic performance in public schools was positively associated with the performance of neighboring districts, although the effect was small. These findings, however, suggest that strategies to strengthen interjurisdictional competition may be useful in enhancing public service quality. 相似文献
129.
130.