全文获取类型
收费全文 | 44443篇 |
免费 | 1254篇 |
国内免费 | 560篇 |
专业分类
财政金融 | 3482篇 |
工业经济 | 2047篇 |
计划管理 | 10548篇 |
经济学 | 7293篇 |
综合类 | 6997篇 |
运输经济 | 408篇 |
旅游经济 | 834篇 |
贸易经济 | 5533篇 |
农业经济 | 3415篇 |
经济概况 | 5700篇 |
出版年
2024年 | 134篇 |
2023年 | 537篇 |
2022年 | 783篇 |
2021年 | 1287篇 |
2020年 | 1561篇 |
2019年 | 913篇 |
2018年 | 790篇 |
2017年 | 897篇 |
2016年 | 1058篇 |
2015年 | 1254篇 |
2014年 | 3259篇 |
2013年 | 3718篇 |
2012年 | 3850篇 |
2011年 | 4743篇 |
2010年 | 3520篇 |
2009年 | 2888篇 |
2008年 | 2918篇 |
2007年 | 2444篇 |
2006年 | 2337篇 |
2005年 | 1721篇 |
2004年 | 1238篇 |
2003年 | 1072篇 |
2002年 | 767篇 |
2001年 | 752篇 |
2000年 | 517篇 |
1999年 | 310篇 |
1998年 | 151篇 |
1997年 | 127篇 |
1996年 | 105篇 |
1995年 | 83篇 |
1994年 | 62篇 |
1993年 | 59篇 |
1992年 | 54篇 |
1991年 | 45篇 |
1990年 | 28篇 |
1989年 | 17篇 |
1988年 | 23篇 |
1987年 | 4篇 |
1986年 | 3篇 |
1985年 | 40篇 |
1984年 | 62篇 |
1983年 | 44篇 |
1982年 | 35篇 |
1981年 | 13篇 |
1980年 | 14篇 |
1979年 | 11篇 |
1978年 | 2篇 |
1977年 | 6篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Stanley R. Johnson Tigran A. Melkonyan 《American journal of agricultural economics》2003,85(1):216-233
We develop a model explaining the consolidation patterns in the agricultural biotechnology industry. Among different consolidation and cooperation mechanisms, we consider collaborative and licensing agreements, joint ventures, acquisitions, and exchanges of ownership and spin-offs. The key results derive from the benefits of coordinated actions, distinction between transferable and nontransferable payoffs, the substitutability, complementarity, and the importance of the managers' noncontractible investments, and access and expansion of markets. Results from the model are used to examine the cooperation and consolidation activities for four major players in the agricultural biotechnology industry, DuPont , Dow Chemical , Monsanto , and Novartis . 相似文献
102.
隋唐五代时期园艺作物的培育与引进 总被引:1,自引:0,他引:1
隋唐五代时期是我国园艺业发展史上的重要时期。多种园艺作物培育成功并有为数不少的域外作物引进中土。这些新品种的花果、蔬菜、香料等,为我国园艺业增添了新的内容,丰富了人民生活。有的作物后来传到国外,为世界园艺提供了宝贵的种质资源。培育与引进的成功,则是与隋唐五代时期经济发展、气候条件适宜以及园艺技术提高等因素紧密相关的。 相似文献
103.
随着知识经济的日益发展,尤其是我国改企建制工作的广泛推行和进一步深化,勘察设计企业为了能更好地应对市场竞争的挑战,其日常运作的各项工作就需要有所改进。而作为企业管理的核心,财务管理则需要密切配合企业改制工作的整体部署,进行相应的创新。本文结合勘察设计企业的实际情况,谈谈实现财务管理创新的几点思路。 相似文献
104.
Kathleen Cannings 《Employee Responsibilities and Rights Journal》1992,5(3):261-272
The purpose of this article is to use Albert Hirschman's Exit, Voice, and Loyalty framework to analyze the extent to which corporate employees are merely attached to the firm rather than committed. A model of managerial loyalty is developed where loyalty is defined as the percentage pay increase that an employee would require to leave the current firm for alternative employment. Independent variables in the model include barriers to exit and voice. This model was tested on three data sets from North American airlines. This model received empirical support during a stable environment but was not strongly supported during a more turbulent environment. Implications of the results are discussed. 相似文献
105.
中国财政性教育投资的实证分析与对策研究 总被引:4,自引:0,他引:4
夏杰长 《中央财经大学学报》2002,(10):10-13
在现代市场经济社会里 ,几乎所有国家的政府投资在为全社会提供教育服务方面都起着主导作用。我国财政性教育投资严重不足 ,而且教育投资结构很不合理 ,因此必须改变教育投资观念 ,切实、稳定增加财政的教育投资 ,优化财政教育投资结构 相似文献
106.
Jun Cai 《Journal of Business Finance & Accounting》1997,24(9&10):1291-1310
This paper evaluates the performance of glamour and value strategies and tests the extrapolation model for the Japanese equity market. In general, value stocks outperform glamour stocks by between 6 and 12 percent per annum for the five years after portfolio formation. Evidence from past, future and expected growth provides strong support for the story developed in Lakonishok, Shleifer and Vishny (1994). It is difficult to attribute the value premia to the difference, if any, in risk factors. In addition, the book-to-market premium is much closer to an arbitrage opportunity than the size premium. 相似文献
107.
This paper employed eleven data series which consist of stocks, bonds, bills, equity premiums, term premiums, and various default premiums to investigate whether January seasonality reported in existing literature is robust across different states of the economy as this has important trading implications. For the periods 1926–1990, small stocks, small stock premiums, low grade bonds, and default premiums (spread between high grade, low grade and government bonds) reveal January seasonality and that the seasonality is robust across different states of the economy except for low grade bond returns and default premiums. January seasonality for low grade bond returns and low grade bond default premiums are primarily driven by results found during periods of economic expansion. Overall, January seasonality is more evident during the economic expansion periods although the magnitude of default premiums is larger during periods of economic contraction. Furthermore, prior findings of strong summer equity returns are primarily driven by the results found during the periods of economic contraction. It is also found that equity returns are generally higher during periods of economic expansion. 相似文献
108.
在当今世界,俄罗斯在解决国际重大争端,处理全球重大事务等方面具有不可或缺、不可替代的重要地位和作用.因此,研究普京的内政外交新动向意义重大.在内政方面,普京正在全力实施以能源、武器和原材料生产为核心的中长期经济振兴计划,提出了10年内翻番的目标.在对外事务中的布局层次是--独联体是重中之重,欧洲及美国是首要,亚太一些周边大国是关键,东欧、中东、非洲和拉美不可忽视. 相似文献
109.
110.
Two standard‐setting approaches have emerged globally to guide the choice of accounting for securitizations: the control and components approach (SFAS No. 125 and SFAS No. 140) and the risks and rewards transfer approach (IAS No. 39). A lack of consensus about derecognition accounting is a major impediment to achieving convergence in global standards that must be resolved. Thus, both SFAS No. 140 and IAS No. 39 will be reexamined, and evidence pertinent to the debate is timely and important. In this study, we present evidence consistent with the view of credit‐rating analysts, who view many securitizations as, in substance, secured borrowings. Specifically, for a sample of originators applying sale accounting guidance in SFAS No. 125 / 140 during the period 1997‐2003, we show that off‐balance‐sheet debt related to securitizations has, on average, the same risk‐relevance for explaining market measures of risk (that is, CAPM beta) as on‐balance‐sheet debt. We also find that, in a returns and earnings association framework, the pricing multiple on securitization gains declines as the amount of off‐balance‐sheet debt increases, implying that investors take off‐balance‐sheet debt into account when assessing the valuation‐relevance of such gains. For those who advocate the control and components approach to securitization accounting, our results suggest that, at least for frequent securitizers, the put option arising from implicit recourse is a “missing piece” that is not currently accounted for when calculating securitization gains. Our results challenge the extant measurement standards in SFAS No. 140. 相似文献