全文获取类型
收费全文 | 50740篇 |
免费 | 1038篇 |
专业分类
财政金融 | 8599篇 |
工业经济 | 3159篇 |
计划管理 | 8417篇 |
经济学 | 12087篇 |
综合类 | 792篇 |
运输经济 | 283篇 |
旅游经济 | 492篇 |
贸易经济 | 9956篇 |
农业经济 | 1641篇 |
经济概况 | 5621篇 |
信息产业经济 | 47篇 |
邮电经济 | 684篇 |
出版年
2023年 | 220篇 |
2021年 | 257篇 |
2020年 | 488篇 |
2019年 | 685篇 |
2018年 | 3023篇 |
2017年 | 2892篇 |
2016年 | 2094篇 |
2015年 | 650篇 |
2014年 | 1007篇 |
2013年 | 3893篇 |
2012年 | 1613篇 |
2011年 | 3034篇 |
2010年 | 2748篇 |
2009年 | 2600篇 |
2008年 | 2432篇 |
2007年 | 2639篇 |
2006年 | 916篇 |
2005年 | 1154篇 |
2004年 | 1121篇 |
2003年 | 1273篇 |
2002年 | 872篇 |
2001年 | 771篇 |
2000年 | 723篇 |
1999年 | 627篇 |
1998年 | 665篇 |
1997年 | 632篇 |
1996年 | 611篇 |
1995年 | 510篇 |
1994年 | 522篇 |
1993年 | 528篇 |
1992年 | 557篇 |
1991年 | 555篇 |
1990年 | 513篇 |
1989年 | 408篇 |
1988年 | 404篇 |
1987年 | 409篇 |
1986年 | 418篇 |
1985年 | 543篇 |
1984年 | 537篇 |
1983年 | 498篇 |
1982年 | 440篇 |
1981年 | 456篇 |
1980年 | 426篇 |
1979年 | 443篇 |
1978年 | 350篇 |
1977年 | 311篇 |
1976年 | 300篇 |
1975年 | 251篇 |
1974年 | 237篇 |
1973年 | 237篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
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
142.
143.
Luis Navarro Elola Ana Clara Pastor Tejedor Leonor González Menorca 《Technovation》1996,16(10):595-599
The manufacturer's requirement of increasing productivity results in the need to design work stations that are increasingly more effective and specialized. However, this procedure can bring about an overloading of the worker, a lack of motivation, and, consequently, a reduction in productivity.Ergonomics adapts the work station to the worker with the object of improving his welfare and satisfaction at his post. One aspect that this science concerns itself with is the evaluation of physical demands connected to productive tasks. Mechanical movements are also studied in order to perform tasks efficiently.We here propose a new method of physical demand analysis that determines the risk factor for muscular skeletal lesion. This method uses, as a base, the system of predetermined times, MTM-UAS. It includes a computer system that allows us to easily analyse the operations at a work station and generates charts similar to those of UAS, but, instead of times, it measures the quantity of mechanical work necessary for each movement.The information that the method provides can be used by different divisions within companies in making decisions about improvements at work stations. 相似文献
144.
The channel literature has paid little attention to issues related to exclusive dealing governance arrangements. Consequently,
there is only limited knowledge about how exclusive dealing impacts various channel processes and outcomes. This gap is especially
regrettable since exclusive dealing, in addition to being one of the most commonplace governance formats within the distribution
channels, is also one of the best exemplars of viable unilateral governance formats. In this initial investigation, the authors
explore the linkages among the constructs of exclusive dealing, relationalism, communication, and performance. Empirical data
for the study were drawn from the photocopier industry.
He obtained his M.B.A. and D.B.A. degrees from Boston University. His primary research interest includes channels of distribution,
franchisor-franchisee relationships, and consumer purchase behavior in international contexts. He has published articles inJournal of Marketing Channels and the proceedings of several marketing conferences.
This article was crafted when Rajiv Dant was at Boston University. He received his M.B.A. from Bombay University and his Ph.D.
from Virginia Polytechnic Institute and State University. His research focuses on channels of distribution, with primary emphasis
on franchise structure, franchisee-franchisor relationships, and public policy aspects of franchising growth and ownership
topics. His research has been published inJournal of Marketing, Journal of Public Policy & Marketing, Research in Marketing, Journal of Retailing, Journal of Business
Research, Journal of Business Venturing, Journal of the Operations Research Society, Marketing Letters, Journal of Small Business
Management, Journal of Economic Psychology, Southern Business & Economics Journal, Philosophical and Radical Thought in Marketing,
Journal of Healthcare Marketing, Journal of Marketing Channels, andInternational Small Business Journal. 相似文献
145.
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
146.
147.
This paper analyses low income dynamics in Britain using the first four waves of the British Household Panel Survey. There is much low income turnover: although there is a small group of people who are persistently poor, more striking is the relatively large number of low income escapers and entrants from one year to the next. Simulations using estimated low income exit and re-entry rates demonstrate the importance of repeated low income spells for explaining a person's experience of low income over a given period. We also document the characteristics of low income stayers, escapers and entrants. 相似文献
148.
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
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
149.
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
150.