全文获取类型
收费全文 | 29514篇 |
免费 | 580篇 |
专业分类
财政金融 | 5315篇 |
工业经济 | 2171篇 |
计划管理 | 5010篇 |
经济学 | 6683篇 |
综合类 | 313篇 |
运输经济 | 181篇 |
旅游经济 | 483篇 |
贸易经济 | 4560篇 |
农业经济 | 1412篇 |
经济概况 | 3893篇 |
邮电经济 | 73篇 |
出版年
2021年 | 182篇 |
2020年 | 289篇 |
2019年 | 399篇 |
2018年 | 560篇 |
2017年 | 563篇 |
2016年 | 528篇 |
2015年 | 385篇 |
2014年 | 612篇 |
2013年 | 2836篇 |
2012年 | 813篇 |
2011年 | 871篇 |
2010年 | 691篇 |
2009年 | 815篇 |
2008年 | 855篇 |
2007年 | 769篇 |
2006年 | 707篇 |
2005年 | 659篇 |
2004年 | 661篇 |
2003年 | 648篇 |
2002年 | 597篇 |
2001年 | 604篇 |
2000年 | 602篇 |
1999年 | 521篇 |
1998年 | 525篇 |
1997年 | 502篇 |
1996年 | 501篇 |
1995年 | 453篇 |
1994年 | 497篇 |
1993年 | 506篇 |
1992年 | 472篇 |
1991年 | 499篇 |
1990年 | 455篇 |
1989年 | 378篇 |
1988年 | 389篇 |
1987年 | 381篇 |
1986年 | 395篇 |
1985年 | 569篇 |
1984年 | 532篇 |
1983年 | 534篇 |
1982年 | 517篇 |
1981年 | 443篇 |
1980年 | 436篇 |
1979年 | 448篇 |
1978年 | 381篇 |
1977年 | 343篇 |
1976年 | 273篇 |
1975年 | 266篇 |
1974年 | 248篇 |
1973年 | 238篇 |
1972年 | 196篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
251.
In this paper we introduce a new econometricapproach to analyzing recreational site choicedata, the Dirichlet multinomial model. Thismodel, which nests the standard conditionalmultinomial logit model, can accommodateover-dispersed data and may provide moreefficient estimators of coefficients andconsequent welfare measures than the standardconditional logit model, which is so widelyused in the Random Utility Model approach torecreation demand. We illustrate thisDirichlet approach using a data set of rockclimbers in Scotland, and study the impacts onper-trip consumers surplus of alternativemanagement strategies for popular rock climbingsites. Results show that the Dirichletmultinomial approach produces coefficient andwelfare estimates having smaller samplingvariability in this case. We also compareclassical welfare measures with their posteriorequivalents, which allow for welfare changes tobe dis-aggregated. 相似文献
252.
One main problem with both acquisitions and alliances is separating the attractive partners from the rest. An additional problem with alliances is getting each partner to provide its best assets and efforts. One solution offered for the acquisition adverse selection problem is due diligence through a pre-acquisition alliance; however, none of the papers recommending such an approach analyze the alliance adverse selection and moral hazard problems. This paper presents the first formal model of joint venturing as acquisition due diligence, detailing how the joint solution works and under what conditions.revised version received October 20, 2003 相似文献
253.
254.
255.
256.
J.K. Horowitz 《Environmental and Resource Economics》2002,21(3):241-258
Environmental economics has been much occupied with the discount rate, which is the value of future costs and benefits relative to present costsor benefits. But at least as important is the question of whatshould be discounted, that is, what the value of those future environmentalbenefits is to future generations. This paper analyzes the role for futurepreferences and discusses the state of knowledge. I argue that theappropriate discount rate is the market one, and that the real problemis determining future willingness-to-pay. This approach makes clearerthe connection between discounting and the valuation debate.This paper focuses on two features that have been prominent in that debate:existence value and reference dependence. I argue that thereis a vital connection between the two constructs and that this link yieldsimportant implications for future willingness-to-pay. 相似文献
257.
258.
This article was prepared by Dr L. V. Defris and J. S. McDonnell of the Institute research staff. The authors wish to thank Professor R. F. Henderson and Dr P. J. Sheehan for their helpful comments. 相似文献
259.
260.
A strategy profile of a normal form game is proper if and only if it is quasi-perfect in every extensive form (with that normal form). Thus, properness requires optimality along a sequence of supporting trembles, while sequentiality only requires optimality in the limit. A decision-theoretic implementation of sequential rationality, strategic independence respecting equilibrium (SIRE), is defined and compared to proper equilibrium, using lexicographic probability systems. Finally, we give tremble-based characterizations, which do not involve structural features of the game, of the rankings of strategies that underlie proper equilibrium and SIRE.Journal of Economic LiteratureClassification Numbers: C70, C72. 相似文献