全文获取类型
收费全文 | 20488篇 |
免费 | 439篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 4055篇 |
工业经济 | 1741篇 |
计划管理 | 3454篇 |
经济学 | 4217篇 |
综合类 | 229篇 |
运输经济 | 164篇 |
旅游经济 | 345篇 |
贸易经济 | 3197篇 |
农业经济 | 985篇 |
经济概况 | 2535篇 |
信息产业经济 | 1篇 |
邮电经济 | 5篇 |
出版年
2021年 | 130篇 |
2020年 | 237篇 |
2019年 | 305篇 |
2018年 | 413篇 |
2017年 | 396篇 |
2016年 | 395篇 |
2015年 | 264篇 |
2014年 | 436篇 |
2013年 | 2211篇 |
2012年 | 608篇 |
2011年 | 623篇 |
2010年 | 584篇 |
2009年 | 671篇 |
2008年 | 608篇 |
2007年 | 520篇 |
2006年 | 507篇 |
2005年 | 411篇 |
2004年 | 432篇 |
2003年 | 441篇 |
2002年 | 447篇 |
2001年 | 412篇 |
2000年 | 435篇 |
1999年 | 411篇 |
1998年 | 367篇 |
1997年 | 381篇 |
1996年 | 349篇 |
1995年 | 325篇 |
1994年 | 307篇 |
1993年 | 347篇 |
1992年 | 320篇 |
1991年 | 317篇 |
1990年 | 300篇 |
1989年 | 280篇 |
1988年 | 271篇 |
1987年 | 247篇 |
1986年 | 288篇 |
1985年 | 383篇 |
1984年 | 352篇 |
1983年 | 353篇 |
1982年 | 293篇 |
1981年 | 291篇 |
1980年 | 312篇 |
1979年 | 258篇 |
1978年 | 239篇 |
1977年 | 241篇 |
1976年 | 183篇 |
1975年 | 174篇 |
1974年 | 160篇 |
1973年 | 149篇 |
1972年 | 113篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This article reviews the law regarding Title VII employment discrimination protection from religious discrimination. The issues surrounding the principal legal protection in this regard are explored in the context of a recent controversial case in which an author, Forrest Mims, was not hired as a regular contributor forScientific American magazine, ostensibly because of his belief in the theory of creation over the theory of evolution. The definition of what constitutes a protected religious belief or practice is seen to have expanded over time. However, a belief in creationism is not necessarily seen as being tantamount to a religious belief under present legal interpretation of Title VII. The implications of this finding for future needed Title VII revision are discussed. 相似文献
12.
13.
14.
C. A. Carter R. M. A. Loyns Z. F. Ahmadi-Esfahani 《Revue canadienne d'agroeconomie》1986,34(3):361-377
Canada's wheat grading system is largely based on visual criteria and it is based on relatively high quality standards. A strict varieties licensing system exists to maintain the integrity of the grade standards. One of the consequences of the licensing system is that higher yielding, lower or different quality wheats have not been grown in Canada until recently. The basic objective of this paper is to examine some of the consequences of the regulatory strategy of limiting wheat production to the traditional high quality wheats. This question is analyzed in the context of important changes in the international grain markets. Using a partial equilibrium trade model this paper estimates that if higher yielding wheats were permitted to be grown, annual producer gains would be 5 to 17 percent of current net farm income.
Le classement des blés au Canada est basé sur des critères visuels qui sont de hautes qualités. Le système actuel d'homologation des variétés est tel que l'intégrité de ce système est maintenue. En conséquent, ce système n'a pas encouragé la cultivation des blés de hauts rendements ou des varietés différentes que tout récemment. L'objectif principal de cette étude est d'examiner quelques unes des conséquences de la stratégic de la réglementation visant à limiter la production du blé aux variétés de hautes qualités. Cette question est adressée dans le contexte des changements importants qui ont eu lieu dans le marché international des grains. A l'aide d'un modèle d'équilibre partiel des échanges, la présente étude démontre gu'en permettant la production des blés de hauts rendements, le gain annuel aux producteurs serait de 5 à 17 pourcent du revenue agricole net. 相似文献
Le classement des blés au Canada est basé sur des critères visuels qui sont de hautes qualités. Le système actuel d'homologation des variétés est tel que l'intégrité de ce système est maintenue. En conséquent, ce système n'a pas encouragé la cultivation des blés de hauts rendements ou des varietés différentes que tout récemment. L'objectif principal de cette étude est d'examiner quelques unes des conséquences de la stratégic de la réglementation visant à limiter la production du blé aux variétés de hautes qualités. Cette question est adressée dans le contexte des changements importants qui ont eu lieu dans le marché international des grains. A l'aide d'un modèle d'équilibre partiel des échanges, la présente étude démontre gu'en permettant la production des blés de hauts rendements, le gain annuel aux producteurs serait de 5 à 17 pourcent du revenue agricole net. 相似文献
15.
Richard Cebula 《Atlantic Economic Journal》2003,31(3):255-265
Using error-correction model (ECM) estimation, the paper empirically examines the causality relationship between the federal government budget deficit and the ex ante real interest rate yield on high grade long term tax free municipal bonds in the U.S. To clarify this deficit or interest rate relationship, the budget deficit is measured by the primary budget deficit, which excludes net interest payments by the Treasury. In a model that includes federal personal income tax rates and net international capital flows, as well as money supply growth, the ECM estimates strongly suggest a bi-directional relationship between the primary budget deficit and the ex ante real interest rate yield. Budget deficits apparently do matter! William Simon's concerns were justified.The author is indebted to P. A. V. B. Swamy for ideas and helpful suggestions and Will Perry for data assembly and processing. 相似文献
16.
Much of the discussion about banking and commerce in America has failed to make several crucial distinctions and has not accounted for many arrangements that have promoted the mixing of these activities. We investigate the history of banking and commerce in the United States, looking both at bank control of commercial firms and commercial firms' control of banks. We trace how these controls have changed with shifting definitions of "bank" and changing methods of "control." Despite the regulations prohibiting some arrangements that promote financial control, we find evidence of extensive linkages between banking and commerce in the United States. These linkages usually build on devices that are very close substitutes to the arrangements prohibited by law. Altogether, our findings question the often made claim that traditionally banking in the United States has been separated from commerce. Furthermore, given that research on Japan and Germany has shown that the mixing of banking and commerce matters for a variety of issues, our evidence also raises some questions on similar research in the United States which makes the simplifying assumption that these industries are separated. 相似文献
17.
This article reports on the latest in a series of international comparisons of management practices and performance outcomes of industries in various countries. Here, it is the service industries in the UK and the US which come under the microscope. Among the companies surveyed, there were more world-class performers in the US than the UK, but also more low performers. The concluding part of the article is diagnostic – the authors also suggest measures which could improve performance. 相似文献
18.
The price movements of certain assets can be modeled by stochastic processes that combine continuous diffusion with discrete jumps. This paper compares values of options on assets with no jumps, jumps of fixed size, and jumps drawn from a lognormal distribution. It is shown that not only the magnitude but also the direction of the mispricing of the Black-Scholes model relative to jump models can vary with the distribution family of the jump component. This paper also discusses a methodology for the numerical valuation, via a backward induction algorithm, of American options on a jump-diffusion asset whose early exercise may be profitable. These cannot, in general, be accurately priced using analytic models. The procedure has the further advantage of being easily adaptable to nonanalytic, empirical distributions of period returns and to nonstationarity in the underlying diffusion process. 相似文献
19.
20.
Gregory J. Werden Andrew S. Joskow Richard L. Johnson 《Managerial and Decision Economics》1991,12(5):341-352
The literature on industrial organization contains very little direct evidence on the effects of actual mergers. This study estimates the effects of two recent airline mergers approved by the Department of Transportation over the objection of the Department of Justice. The merger of TWA and Ozark appears to have caused a slight increase in fares and a far greater reduction in service on city pairs out of St Louis. The merger of Northwest and Republic appears to have caused a significant increase in fares and a significant reduction in overall service on city pairs out of Minneapolis-St Paul. 相似文献