全文获取类型
收费全文 | 14740篇 |
免费 | 339篇 |
专业分类
财政金融 | 3126篇 |
工业经济 | 1120篇 |
计划管理 | 2346篇 |
经济学 | 3133篇 |
综合类 | 154篇 |
运输经济 | 106篇 |
旅游经济 | 225篇 |
贸易经济 | 2426篇 |
农业经济 | 643篇 |
经济概况 | 1786篇 |
信息产业经济 | 2篇 |
邮电经济 | 12篇 |
出版年
2023年 | 89篇 |
2021年 | 89篇 |
2020年 | 213篇 |
2019年 | 281篇 |
2018年 | 357篇 |
2017年 | 354篇 |
2016年 | 328篇 |
2015年 | 211篇 |
2014年 | 344篇 |
2013年 | 1659篇 |
2012年 | 408篇 |
2011年 | 502篇 |
2010年 | 454篇 |
2009年 | 501篇 |
2008年 | 426篇 |
2007年 | 375篇 |
2006年 | 342篇 |
2005年 | 283篇 |
2004年 | 286篇 |
2003年 | 286篇 |
2002年 | 281篇 |
2001年 | 284篇 |
2000年 | 293篇 |
1999年 | 300篇 |
1998年 | 308篇 |
1997年 | 270篇 |
1996年 | 229篇 |
1995年 | 220篇 |
1994年 | 240篇 |
1993年 | 240篇 |
1992年 | 267篇 |
1991年 | 255篇 |
1990年 | 204篇 |
1989年 | 183篇 |
1988年 | 170篇 |
1987年 | 162篇 |
1986年 | 169篇 |
1985年 | 243篇 |
1984年 | 259篇 |
1983年 | 249篇 |
1982年 | 218篇 |
1981年 | 194篇 |
1980年 | 173篇 |
1979年 | 171篇 |
1978年 | 159篇 |
1977年 | 136篇 |
1976年 | 124篇 |
1975年 | 140篇 |
1974年 | 100篇 |
1973年 | 104篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
Sebouh Aintablian Patricia A. Mcgraw Gordon S. Roberts 《Journal of Business Finance & Accounting》2007,34(1-2):389-401
Abstract: Loan announcement effects for 152 Canadian companies are examined to investigate the efficiency of monitoring by banks facing lender environmental liability. Market reaction to the announcement of bank debt to 'environmental' firms is more positive and significant than for 'non-environmental' firms and, for firms in industries with a higher likelihood of experiencing spill events, is more positive and significant, reinforcing earlier results that establish a relationship between specific loan/borrower characteristics and announcement period excess returns and providing further evidence on the 'uniqueness' of bank loans by demonstrating the superior ability of banks to monitor corporate borrowers exposed to environmental liability. 相似文献
13.
Alex Schwartz 《International journal of urban and regional research》2003,27(1):188-192
Jeff Crump's discussion of housing policy in the United States is highly polemic but not very analytic or informative. Crump argues that federal housing policy is attempting to move people out of public housing and into the private housing market and the lowwage labor force. However, he fails to support his argument with credible evidence. My comments point out the most egregious of Crump's claims. I start with Crump's most extreme contentions that housing policy is coercing public housing residents into the low‐wage labor force. I then question his dismissive attitude toward the problems confronted by residents of distressed public housing and policies designed to help low‐income families move out of impoverished neighborhoods. I subsequently show how Crump exaggerates the extent to which federal housing policy is clearing central cities of subsidized low‐income housing. I conclude with a few words on the serious issues that a more informed critique of US housing policy could have raised. L'exposé de Jeff Crump sur la politique du logement aux Etats‐Unis relève principalement de la polémique, plus que de l'analyse ou de l'information. Selon lui, la politique fédérale tente de déplacer la population des logements sociaux vers les marchés de l'habitat privé et de la main‐d'?uvre à bas salaires. Toutefois, il n'apporte aucune preuve crédible à son propos. Ma réaction porte sur ses arguments les plus insignes, en commençant par ses allégations extrémistes selon lesquelles la politique du logement contraint les habitants des logements publics à des emplois peu rémunérés. Je remets ensuite en cause son dédain à l'égard des difficultés que rencontrent les résidents des logements sociaux insalubres, sans oublier les politiques prévues pour aider les familles à faibles revenus à quitter les quartiers pauvres. En conséquence, à mon avis, Crump exagère la mesure dans laquelle la politique fédérale élimine des centres‐villes les habitats à loyer modéré subventionnés. En quelques mots, ma conclusion porte sur les questions graves qu'aurait pu soulever un commentateur mieux documenté sur la politique du logement aux Etats‐Unis. 相似文献
14.
15.
16.
Summary A sequential testing procedure called 2-SPRT for the meanμ of the negative binomial distribution with known exponentk is presented. For any fixedμ
0(μ
1<μ
0<μ
2), the 2-SPRT provides an asymptotic solution to the modified Kiefer-Weiss problem. Determination ofμ
0 such that the test provides an approximate solution to the Kiefer-Weiss problem is described. The behavior of the 2-SPRT
and the Sequential Probability Ratio Test is investigated using Monte Carlo methods. The error probabilities and the average
sample numbers are compared.
All the computations were carried out on the Alabama Supercomputer. 相似文献
17.
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
18.
19.
20.
In this paper we consider the potential gain of a government pursuing a two-part trade policy: an import license for entry, along with a per-unit tariff on imports. The model is a two-stage game of complete but imperfect information. In the first stage, the domestic government sets trade policy, while in the second stage the home and foreign producers behave as Cournot competitors. The paper demonstrates that the optimal trade policy depends upon the number of firms, the degree of heterogeneity in cost functions, and the degree of convexity in cost functions. 相似文献