首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   30709篇
  免费   735篇
  国内免费   5篇
财政金融   4585篇
工业经济   1708篇
计划管理   3560篇
经济学   5290篇
综合类   380篇
运输经济   175篇
旅游经济   432篇
贸易经济   3642篇
农业经济   1255篇
经济概况   3429篇
水利工程   6936篇
信息产业经济   1篇
邮电经济   56篇
  2021年   235篇
  2020年   313篇
  2019年   480篇
  2018年   710篇
  2017年   684篇
  2016年   714篇
  2015年   406篇
  2014年   673篇
  2013年   2765篇
  2012年   1034篇
  2011年   1083篇
  2010年   790篇
  2009年   870篇
  2008年   938篇
  2007年   961篇
  2006年   851篇
  2005年   781篇
  2004年   790篇
  2003年   549篇
  2002年   601篇
  2001年   546篇
  2000年   532篇
  1999年   538篇
  1998年   474篇
  1997年   514篇
  1996年   497篇
  1995年   452篇
  1994年   448篇
  1993年   478篇
  1992年   489篇
  1991年   481篇
  1990年   416篇
  1989年   401篇
  1988年   385篇
  1987年   375篇
  1986年   367篇
  1985年   542篇
  1984年   509篇
  1983年   482篇
  1982年   440篇
  1981年   410篇
  1980年   475篇
  1979年   419篇
  1978年   350篇
  1977年   343篇
  1976年   316篇
  1975年   340篇
  1974年   281篇
  1973年   299篇
  1972年   212篇
排序方式: 共有10000条查询结果,搜索用时 504 毫秒
961.
962.
We examine the acquisition and joint venture strategies of U.S. banks from 1980 to 1998 to diversify into non-banking sectors. We find that the market responds favorably to both types of expansions, with the gains being shared between acquiring banks and their targets and venture banks and their non-bank partners, respectively. Acquisitions expose acquiring banks to significant increases in nonsystematic, market, and total risk, while joint ventures result in significant decreases in the nonsystematic and total risk measures for participating banks. Our results suggest that product-market expansions, in general, provide U.S. banks with value-enhancing opportunities, and that joint ventures may improve both the return and risk characteristics of the partner banks.  相似文献   
963.
The loan market is a hybrid between a public and a private market, comprised of financial institutions with access to private information about borrowing firms. We test whether this is reflected in informationally efficient price formation in the loan market vis-a-vis the equity markets, and reject this private information hypothesis. We also reject a liquidity hypothesis which suggests that equity markets always lead loan markets, despite bank lenders' access to private information, because of greater liquidity in equity markets. We further test, and reject, an asymmetric price reaction hypothesis that states that loan returns are more sensitive to negative information whereas equity returns respond symmetrically to both positive and negative information. We find evidence most consistent with an integrated markets hypothesis that suggests that both the equity and syndicated bank loan markets are highly integrated such that information flows freely across markets. This is particularly true when the equity market makers are also loan syndicate members.   相似文献   
964.
The Effects of Bilateral Tax Treaties on U.S. FDI Activity   总被引:1,自引:0,他引:1  
The effects of bilateral tax treaties on FDI activity have been unexplored, despite significant ongoing activities by countries to negotiate and ratify these treaties. This paper estimates the impact of bilateral tax treaties using both U.S. inbound and outbound FDI over the period 1980–1999. Robust to a wide variety of alternative specifications, we find little evidence that bilateral tax treaties increase FDI activity, contrary to OECD-stated goals for such treaties.  相似文献   
965.
Compensation, Incentives, and the Duality of Risk Aversion and Riskiness   总被引:18,自引:1,他引:18  
The common folklore that giving options to agents will make them more willing to take risks is false. In fact, no incentive schedule will make all expected utility maximizers more or less risk averse. This paper finds simple, intuitive, necessary and sufficient conditions under which incentive schedules make agents more or less risk averse. The paper uses these to examine the incentive effects of some common structures such as puts and calls, and it briefly explores the duality between a fee schedule that makes an agent more or less risk averse, and gambles that increase or decrease risk.  相似文献   
966.
Employee Stock Options, Corporate Taxes, and Debt Policy   总被引:5,自引:0,他引:5  
We find that employee stock option deductions lead to large aggregate tax savings for Nasdaq 100 and S&P 100 firms and also affect corporate marginal tax rates. For Nasdaq firms, including the effect of options reduces the estimated median marginal tax rate from 31% to 5%. For S&P firms, in contrast, option deductions do not affect marginal tax rates to a large degree. Our evidence suggests that option deductions are important nondebt tax shields and that option deductions substitute for interest deductions in corporate capital structure decisions, explaining in part why some firms use so little debt.  相似文献   
967.
968.
This paper examines whether community banks have a niche in the production of soft information when lending to small firms. A composite measure of soft information production is created from owner ratings of bank performance characteristics using survey data from a national sample of U.S. small firms. These characteristics capture some important aspects of soft information such as the bank’s knowledge of the owner’s business. This composite measure is related to the size of the owner’s primary bank, a measure of the intensity of market competition and proxies for the strength of banking relationships. After controlling for several sources of endogeneity, this composite measure is found to be significantly higher if the owner currently banks at a CFI and experiences less loan officer turnover.  相似文献   
969.
This paper examines how bank consolidation activity affected small business lending in local U.S. banking markets during two 3-year study periods, focussing on the role played by community banks in the process. During the 1994–1997 period, we find that consolidation activity involving big banks is associated with lower loan growth, whereas community bank consolidations and a greater presence of community banks in the market are associated with higher loan growth. During the 1997–2000 period, consolidation activity is either unrelated to small business loan growth or is associated with higher loan growth. In both study periods we find that, net of organization reclassifications due to consolidation or asset growth, the share of small business lending funded by community banks rose, particularly in markets undergoing consolidation.  相似文献   
970.
Entrepreneurial activity, risk, and the business cycle   总被引:1,自引:0,他引:1  
This paper analyzes a model in which the risk associated with entrepreneurial activity implies that the amount of such activity is procyclical and results in amplification and intertemporal propagation of productivity shocks. In the model risk averse agents choose between a riskless project and a risky project with higher expected output (‘the entrepreneurial activity’). Agents who become entrepreneurs need to bear part of the project-specific risk for incentive reasons. More agents become entrepreneurs when productivity is high, because agents are more willing to bear risk and need to bear less risk for incentive reasons. Furthermore, cross-sectional heterogeneity can be countercyclical.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号