全文获取类型
收费全文 | 5225篇 |
免费 | 1246篇 |
专业分类
财政金融 | 979篇 |
工业经济 | 486篇 |
计划管理 | 1198篇 |
经济学 | 1222篇 |
综合类 | 35篇 |
运输经济 | 117篇 |
旅游经济 | 80篇 |
贸易经济 | 1452篇 |
农业经济 | 320篇 |
经济概况 | 581篇 |
邮电经济 | 1篇 |
出版年
2023年 | 8篇 |
2022年 | 8篇 |
2021年 | 89篇 |
2020年 | 189篇 |
2019年 | 513篇 |
2018年 | 258篇 |
2017年 | 392篇 |
2016年 | 379篇 |
2015年 | 403篇 |
2014年 | 397篇 |
2013年 | 674篇 |
2012年 | 416篇 |
2011年 | 371篇 |
2010年 | 333篇 |
2009年 | 252篇 |
2008年 | 256篇 |
2007年 | 207篇 |
2006年 | 200篇 |
2005年 | 158篇 |
2004年 | 145篇 |
2003年 | 124篇 |
2002年 | 136篇 |
2001年 | 110篇 |
2000年 | 78篇 |
1999年 | 42篇 |
1998年 | 36篇 |
1997年 | 25篇 |
1996年 | 21篇 |
1995年 | 20篇 |
1994年 | 16篇 |
1993年 | 12篇 |
1992年 | 14篇 |
1991年 | 13篇 |
1990年 | 17篇 |
1989年 | 7篇 |
1988年 | 9篇 |
1987年 | 14篇 |
1986年 | 6篇 |
1985年 | 19篇 |
1984年 | 10篇 |
1983年 | 11篇 |
1982年 | 17篇 |
1981年 | 4篇 |
1980年 | 10篇 |
1979年 | 9篇 |
1978年 | 8篇 |
1976年 | 6篇 |
1975年 | 6篇 |
1974年 | 5篇 |
1965年 | 3篇 |
排序方式: 共有6471条查询结果,搜索用时 31 毫秒
31.
The purpose of this study is to investigate the relationship between product innovativeness and groups of outcomes flowing from the computer software product development process and the associated knowledge acquisition process. Data from interviews of managers in 94 software projects are analysed, and three groups of outcomes are measured: project performance, knowledge enhancement, and the strengthening of linkages to external actors/sources. The high innovative products show higher project performance for all measures of project performance compared with low innovative products. Similar results were found for all measures of personnel knowledge enhancement outcomes. Changes in the importance of linkages to nine different external sources of knowledge used by the firms during the knowledge acquisition process, also show some positive outcomes with respect to rising innovativeness levels. Strengthening of external linkages is found for 66% of the investigated linkages between one or two innovativeness levels. Of these, the linkages to hardware manufacturers, co-operation partners, and universities and other research institutions show strengthening when high innovativeness products are compared with low-level products. As the project performance and knowledge enhancement outcomes are due, in part, to knowledge gained within linkages to external actors/sources, managers could consider whether giving special attention to managing these linkages would be a winning innovation strategy for their particular firm. 相似文献
32.
Several studies find that bond rating downgrades cause negative valuation effects. Other studies find that signals conveyed by earnings releases, earnings forecasts, bankruptcies, and stock offerings of individual firms can be transmitted to their corresponding industries. By combining the two sets of studies, we hypothesize that bond rating changes may contain relevant information not only about the firm, but also about the corresponding industry. We find significantly negative valuation effects for rating downgrades, which are transmitted throughout the industry. Furthermore, we find that intra-industry effects depend on particular characteristics of the bond downgrade, the downgraded firm, and industry rivals. Specifically, the negative intra-industry effects are more pronounced when (1) the downgraded firm experiences a more severe share price response to the bond rating downgrade, (2) the downgraded firm is dominant in the industry, (3) the downgraded firm is more closely related to its rivals in the industry, and (4) the downgrade is due to a deterioration in the firm's financial prospects. 相似文献
33.
In this article we study a very simple trial and error learning process in the context of a Cournot oligopoly. Without any knowledge of the payoff functions players increase, respectively decrease, their quantity as long as this leads to higher profits. We show that despite the absence of any coordination or punishing device this process converges to the joint‐profit‐maximizing outcome. 相似文献
34.
This paper analyses the decision of the Financial Reporting Council (FRC) to replace Australian accounting standards with international accounting standards on 1 January, 2005. Two main topics are considered: the appropriateness of the FRC's directive, and the case against the proposed adoption date. We argue that the FRC has not conducted sufficient consultation with affected parties and that the hasty implementation will impose costs that could have been avoided with the exercise of more caution. 相似文献
35.
ABSTRACT The paper examines effects of executives’ orientations on crisis management awareness and practices, drawing on the simplicity and paradox management theories. It is suggested that a focus on single‐sided management constitutes an antecedent of crisis proneness. Employing a set of key corporate domains and based on a holistic organizational approach, the study aims at assessing the extent to which companies are crisis prone or prepared. In a sample of 82 Istaeli business and not‐for‐profit organizations it was found that human resource management, strategy, structure, and unlearning factors significantly predicted crisis preparedness. These results suggest that unlearning, despite a mere allusion to this correlate in the simplicity and paradox management theories, correlates better with crisis preparedness. By contrast, traditional strategy‐related and structural effects were marginally related to crisis management policies. Implications and suggestions for further research are proposed. 相似文献
36.
We examine voting by a board designed to mitigate conflicts of interest between privately informed insiders and owners. Our model demonstrates that, as argued by researchers and the business press, boards with a majority of trustworthy but uninformed “watchdogs” can implement institutionally preferred policies. Our laboratory experiments strongly support this conclusion. Our model also highlights the necessity of penalties on insiders when there is dissension among board members. However, penalties for dissent appeared to have little impact on the experimental outcomes. 相似文献
37.
We examine the impact of the events leading up to and including the passage of the Financial Services Modernization Act (FSMA) of 1999 on the stock returns of banks, brokerage firms, and insurance companies. We find that the impact is positive for all institutions. Bank gains are positively related to size and capitalization. Brokerage firms gain regardless of size, but the gains are inversely related to capitalization and insurance companies gain regardless of size or capital position. The strong positive reaction suggests that the market expects the institutions to benefit from the new opportunities created by the FSMA's passage. 相似文献
38.
39.
Theoretical studies have shown that under unorthodox assumptions on preferences and production technologies, collateral constraints can act as a powerful amplification and propagation mechanism of exogenous shocks. We investigate whether or not this result holds under more standard assumptions. We find that collateral constraints typically generate small output amplification. Large amplification is obtained as a “knife‐edge” type of result. 相似文献
40.
The margin system is the first line of defense against the default risk of a clearinghouse. From the perspectives of a clearinghouse, the utmost concern is to have a prudential system to control the default exposure. Once the level of prudentiality is set, the next concern will be the opportunity cost of the investors, because high opportunity cost discourages people from hedging futures, and thus defeats the function of a futures market. In this article, we first develop different measures of prudentiality and opportunity cost. We then formulate a statistical framework to evaluate different margin‐setting methodologies, all of which strike a balance between prudentiality and opportunity cost. Three margin‐setting methodologies, namely, (1) using simple moving averages; (2) using exponentially weighted moving averages; (3) using a GARCH approach, are applied to the Hang Seng Index futures. Keeping the same prudentiality level, it is shown that the one using a GARCH approach by and large gives the lowest average overcharge. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:117–145, 2004 相似文献