全文获取类型
收费全文 | 25061篇 |
免费 | 4513篇 |
国内免费 | 137篇 |
专业分类
财政金融 | 2355篇 |
工业经济 | 2533篇 |
计划管理 | 4582篇 |
经济学 | 5731篇 |
综合类 | 2160篇 |
运输经济 | 187篇 |
旅游经济 | 106篇 |
贸易经济 | 5109篇 |
农业经济 | 3418篇 |
经济概况 | 3472篇 |
信息产业经济 | 7篇 |
邮电经济 | 51篇 |
出版年
2024年 | 149篇 |
2023年 | 503篇 |
2022年 | 520篇 |
2021年 | 642篇 |
2020年 | 892篇 |
2019年 | 1171篇 |
2018年 | 947篇 |
2017年 | 1113篇 |
2016年 | 949篇 |
2015年 | 1125篇 |
2014年 | 1436篇 |
2013年 | 1763篇 |
2012年 | 2210篇 |
2011年 | 2416篇 |
2010年 | 2326篇 |
2009年 | 1828篇 |
2008年 | 1721篇 |
2007年 | 1695篇 |
2006年 | 1714篇 |
2005年 | 1414篇 |
2004年 | 725篇 |
2003年 | 505篇 |
2002年 | 409篇 |
2001年 | 338篇 |
2000年 | 188篇 |
1999年 | 131篇 |
1998年 | 108篇 |
1997年 | 90篇 |
1996年 | 68篇 |
1995年 | 46篇 |
1994年 | 56篇 |
1993年 | 57篇 |
1992年 | 73篇 |
1991年 | 95篇 |
1990年 | 36篇 |
1989年 | 39篇 |
1988年 | 19篇 |
1987年 | 11篇 |
1985年 | 13篇 |
1984年 | 17篇 |
1983年 | 14篇 |
1982年 | 20篇 |
1981年 | 9篇 |
1979年 | 8篇 |
1978年 | 9篇 |
1973年 | 7篇 |
1972年 | 7篇 |
1971年 | 6篇 |
1969年 | 9篇 |
1963年 | 9篇 |
排序方式: 共有10000条查询结果,搜索用时 281 毫秒
21.
In this paper, we examine the warrant price and stock price reactions to the announcement of warrant life extensions by REITs. As predicted by option pricing theory, warrant prices increase in response to these extensions. The stocks of REITs making the extension announcements experience average abnormal returns that are not significantly different from zero. Thus, total firm value appears to increase, with the gains accruing primarily to the warrantholders. 相似文献
22.
Programme Evaluation with Unobserved Heterogeneity and Selective Implementation: The Mexican PROGRESA Impact on Child Nutrition 总被引:1,自引:0,他引:1
This paper considers the impact of Programa de Educación, Salud y Alimentación ( PROGRESA ), a large Mexican rural anti-poverty programme that had an evaluation sample in which overall treatment was randomly assigned to some communities but not others, on child nutrition. When we examine the impact of PROGRESA based on the presumption of randomized allocations, we find that PROGRESA had no or even a negative impact on child nutrition. However, not all children designated to receive nutritional supplements actually did so. Our preferred estimates – child fixed-effects estimates that control for unobserved heterogeneity that is correlated with access to the supplement – indicate a significantly positive and fairly substantial programme effect of the nutritional supplements on children 12–36 months. They imply an increase of about a sixth in mean growth per year for these children and a lower probability of stunting. Effects are somewhat larger for children from poorer communities but whose mothers are functionally literate. The long-term consequences of these improvements are non-trivial; its impact working through adult height alone could result in a 2.9% increase in lifetime earnings. 相似文献
23.
本文通过工程实例说明,提供了作者进行施工企业评估过程中对其对外承接项目评估的思路和方法.提出了施工企业对其在外所承接项目的权益是一种债权,同时明确了合理确定项目给企业所能带来的应收工程款以及取得应收工程款可能发生的风险是此类项目评估的核心. 相似文献
24.
25.
Exit Options in Corporate Finance: Liquidity versus Incentives 总被引:2,自引:0,他引:2
This paper provides a first study of the optimal design of active monitors'exit options in a problem involving a demand for liquidity and costly monitoring of the issuer. Optimal incentives to monitor the issuer may involve restricting the monitor's right to sell her claims on the firm's cash-flow early. But the monitor will then require a liquidity premium for holding such an illiquid claim. In general, therefore, there will be a trade off between incentives and liquidity. The paper highlights a fundamental complementarity between speculative monitoring in financial markets (which increases the informativeness of prices) and active monitoring inside the firm: in financial markets where price discovery is better and securities prices reflect the fundamentals of the issuer better, the incentive cost of greater liquidity may be smaller and active monitoring incentives may be preserved. The paper spells out the conditions under which more or less liquidity is warranted and applies the analysis to shed light on common exit provisions in venture capital financing. 相似文献
26.
由于代建项目一般工程量大、建设周期长、涉及的关系复杂、隐蔽性较强,很多质量问题在使用过程中逐渐暴露出来,而且在施工过程中项目代建单位比政府投资主管部门对工作及其环境更为了解,因此,政府投资主管部门和项目代建单位在信息占有方面不对称。在这种情况下,有些项目代建单位可能会利用自己的信息优势,通过损害政府投资主管部门的利益来最大化地提高自己的利益,如偷工减料、以次充好、无理索赔等等。在此,文章针对在这种非对称信息条件下如何完善代建制提出一些建议。 相似文献
27.
28.
philippe burger lizelle janse van rensburg 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2008,76(2):291-297
The question this paper investigates is whether or not different metropolitan areas each constitute a separate housing market or whether or not there is a single South African housing market. Theory on the Law of One Price suggests that if products or geographic areas belong in the same market, their absolute prices must converge, so that their relative prices are stationary. By using cross-sectional time series data of five metropolitan areas, the paper tests for the Law of One Price by applying the Im, Pesaran and Shin panel unit root test. The paper finds strong evidence of convergence in large middle-segment house prices and weaker support for convergence in medium middle-segment house prices. In addition, the paper finds no evidence for convergence in small middle-segment house prices. This suggests the existence of a national market for large and possibly middle-segment houses in metropolitan areas, but separate metropolitan markets for small middle-segment houses. In addition, the paper estimates the speed of convergence and finds that large middle-segment house prices converge within two to seven quarters, while the speed of convergence for medium middle-segment house prices in three of the five areas is five to eight quarters. 相似文献
29.
GAO Ge LI Chang 《中国经济评论(英文版)》2008,7(1):6-9
The Bilateral Special Economic Zones is a new idea about economic co-operation ways. It is going to be set by both countries with a common boundary for promoting the economic co-operation between two sides. It can be firstly set along the boundary between China and Vietnam. It will promote the economic co-operation between them, but China and ASEAN. It can be set along the Chinese boundary with the neighboring countries and will promote the economic co-operation between the both sides for setting up a better environment around China. 相似文献
30.