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   24024篇
  免费   662篇
财政金融   4331篇
工业经济   1672篇
计划管理   4192篇
经济学   5733篇
综合类   253篇
运输经济   190篇
旅游经济   375篇
贸易经济   3952篇
农业经济   1213篇
经济概况   2697篇
信息产业经济   3篇
邮电经济   75篇
  2023年   115篇
  2021年   160篇
  2020年   309篇
  2019年   475篇
  2018年   520篇
  2017年   570篇
  2016年   561篇
  2015年   380篇
  2014年   600篇
  2013年   2582篇
  2012年   829篇
  2011年   857篇
  2010年   742篇
  2009年   850篇
  2008年   784篇
  2007年   681篇
  2006年   652篇
  2005年   573篇
  2004年   503篇
  2003年   518篇
  2002年   469篇
  2001年   534篇
  2000年   479篇
  1999年   449篇
  1998年   501篇
  1997年   452篇
  1996年   448篇
  1995年   380篇
  1994年   387篇
  1993年   364篇
  1992年   376篇
  1991年   390篇
  1990年   357篇
  1989年   266篇
  1988年   277篇
  1987年   285篇
  1986年   256篇
  1985年   377篇
  1984年   371篇
  1983年   350篇
  1982年   301篇
  1981年   298篇
  1980年   293篇
  1979年   291篇
  1978年   233篇
  1977年   188篇
  1976年   190篇
  1975年   161篇
  1974年   154篇
  1973年   147篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).  相似文献   
52.
53.
This paper examines the influence of unemployment insurance (UI) on the length of nonemployment spells experienced by young workers. The analysis introduces a flexible duration model to estimate the effects of the weekly benefit amount and weeks of eligibility on the amount of time spent between jobs by men, distinguishing between the experiences of UI and non-UI recipients. The empirical findings suggest three conclusions: (1) UI recipients experience longer spells of nonemployment than their non-UI recipient counterparts, at least up to the point of exhaustion of UI benefits; (2) the level of the weekly benefit amount does not significantly affect the length of nonemployment spells; and (3) increasing the number of weeks of eligibility offered by a UI program leads to longer episodes of nonemployment.  相似文献   
54.
55.
Three policy-relevant questions about multifamily mortgage originations (MFOs) are addressed. First, what is the annual volume of MFOs? This analysis highlights differences and problems among three publicly available multifamily lending surveys; the 1993 volume is estimated at $30 billion. Second, what is the size distribution of multifamily mortgages? Using kernel density estimation, variation in this distribution among central cities and suburbs, underserved areas, and lender type is examined. Third, what are the primary determinants of the variation in multifamily lending? A relatively simple regression model is estimated to shed light on the variables most highly correlated with multifamily lending. Tract income relative to MSA median income and minority concentrations are shown to be highly correlated with lending volume, but the largest source of variation is the number of multifamily rental units in the tract.  相似文献   
56.
In the U.S., and increasingly in other countries as well, IPO securities are marketed to investors in a process known as "book-building"—one that amounts to polling institutional investors to establish a demand schedule for the issue and then allotting stock to individual investors according to the strength of their professed interest. Although book-building methods require use of discriminatory tactics that have attracted strong criticism from investors and regulators, this article defends such practices by demonstrating that book-building is more efficient than alternative methods. It effectively allows issuers to increase the net proceeds of their offerings by making better use of information about market demand conditions.
In the process of explaining the efficiency of the book-building method, this article also offers a plausible explanation for a phenomenon that has long puzzled economists: the systematic underpricing of IPOs. The key to the success of a book-building effort lies in the use of a strategic pricing and allocation policy designed to offset the investor's incentive to understate his or her interest in an IPO. By committing to favor investors who provide strong indications of interest with relatively large allocations of underpriced shares, the investment bank can limit the distortion of investor's incentives in bidding and so increase the level of proceeds the issuing firm can expect to generate from its IPO.  相似文献   
57.
Endogenous communication among lenders and entrepreneurial incentives   总被引:8,自引:0,他引:8  
If banks have an informational monopoly about their clients,borrowers may curtail their effort level for fear of being exploitedvia high interest rates in the future. Banks can correct thisincentive problem by committing to share private informationwith other lenders. The fiercer competition triggered by informationsharing lowers future interest rates and future profits of banks.But, provided banks retain an initial informational advantage,their current profits are raised by the borrowers' higher effort.This trade-off determines the banks' willingness to share information.Their decision affects credit market competition, interest rates,volume of lending, and social welfare.  相似文献   
58.
59.
60.
In this paper the role of expenses in explaining closed-end fund discounts is re-examined. A present value model is developed to illustrate the relationship between expenses and discounts. Earlier studies find that discounts are not related to management fees. In this paper, using a larger sample over a longer and different period and a better specification of the expense variable consistent with the model developed, discounts are found to be significantly related to expenses. The relationship between expenses and discounts holds in the presence of other control variables.  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