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   137069篇
  免费   3196篇
  国内免费   2篇
财政金融   25763篇
工业经济   11583篇
计划管理   21713篇
经济学   29249篇
综合类   1465篇
运输经济   958篇
旅游经济   2484篇
贸易经济   23533篇
农业经济   6145篇
经济概况   17113篇
信息产业经济   8篇
邮电经济   253篇
  2021年   831篇
  2020年   1611篇
  2019年   2374篇
  2018年   2369篇
  2017年   2533篇
  2016年   2727篇
  2015年   2076篇
  2014年   3382篇
  2013年   15218篇
  2012年   4197篇
  2011年   4216篇
  2010年   3746篇
  2009年   4338篇
  2008年   3929篇
  2007年   3275篇
  2006年   3576篇
  2005年   3567篇
  2004年   3127篇
  2003年   2899篇
  2002年   2869篇
  2001年   2624篇
  2000年   2568篇
  1999年   2470篇
  1998年   2294篇
  1997年   2358篇
  1996年   2223篇
  1995年   2014篇
  1994年   2034篇
  1993年   2023篇
  1992年   2075篇
  1991年   1958篇
  1990年   1832篇
  1989年   1680篇
  1988年   1625篇
  1987年   1624篇
  1986年   1717篇
  1985年   2476篇
  1984年   2332篇
  1983年   2138篇
  1982年   1993篇
  1981年   1932篇
  1980年   1919篇
  1979年   1829篇
  1978年   1656篇
  1977年   1635篇
  1976年   1386篇
  1975年   1283篇
  1974年   1189篇
  1973年   1184篇
  1972年   896篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
This paper explores differences in the bidding patterns of entrants and incumbents in road construction auctions. We find that entrants bid more aggressively and win auctions with significantly lower bids than incumbents. The differences in their bidding patterns are consistent with a model of auctions in which the distribution of an entrant's costs exhibits greater dispersion than that of an incumbent's and relations of stochastic dominance in the distributions do not persist for the entire range of estimated costs. We also find that more efficient firms bid, on average, more aggressively and firms with greater backlogs bid less aggressively.  相似文献   
22.
23.
Despite the prevalence of elective business ethics courses, little research has sought to explain and predict why some students enroll in these courses and while others do not. Using the theory of planned behavior (Ajzen and Madden, 1986) as a theoretical foundation, 178 graduate students in Ireland were surveyed about their intention to sign up for an elective ethics class. Their behavior was measured two months later. The results reveal the power of the theory of planned behavior to explain and predict who takes elective ethics classes.Donna M. Randall is an associate professor and chair in the Department of Management and Systems at Washington State University. Her research interests include business ethics, organizational commitment, and reproductive risk in the work place. Her work has appeared inJournal of Business Ethics, Decision Sciences, Academy of Management Review, Journal of Vocational Behavior, Journal of Business Research, and others.  相似文献   
24.
25.
In this paper we will analyze the relationship between the value and duration moments of a cash flow and movements in the yield curve. We will show that for changes in the yield curve which can be related to tn , the 1st order changes in the net present value of a cash flow are linearly dependent on the n + lth duration moments, and that the 2nd order changes are dependent on the sum of duration moments of order 2 n + 1 and 2 n + 2. We will use this relationship to tilt tracking portfolios so as to protect them against specific changes in the yield curve.  相似文献   
26.
27.
Negotiation support using the Graph Model for Conflict Resolution   总被引:1,自引:1,他引:0  
The Graph Model for Conflict Resolution is a flexible methodology for systematically studying strategic conflicts in the real world, and is therefore a natural tool for negotiation support. The basic definitions underlying the graph model are reviewed, and the techniques for analysis and interpretation are discussed. The modeling and analysis of a case study, an international trade negotiation concerning the export of Canadian softwood lumber to the United States, are used to demonstrate the practical application of the Graph Model for Conflict Resolution as a negotiation support tool. The modeling and analysis is carried out using the GMCR software system. The ability of the Graph Model for Conflict Resolution to provide insights and advice to negotiators is emphasized.  相似文献   
28.
Consumers act out roles throughout their lives. Marketers assist in this role playing by providing the wardrobes, props, and sets in the form of products and services. They also help people understand acceptable role behavior by portraying roles in their communication programs. Consumers assume new roles as they age. This article is designed to enhance understanding of the often-ignored roles that accompany aging and provides examples of and suggestions for effective marketing for these role transitions.  相似文献   
29.
The paper extends Manning's model on education and balanced growth to include labour immigration. Each immigration unit is assumed to consist of one skilled worker and some unskilled members. The optimal immigration policy which maximizes the per capita steady-state consumption of the host country is derived. We show that optimal immigration policy can reduce the steady-state skilled labour ratio. More interesting still, contrary to the widespread belief that immigration of skilled workers hurts local skilled workers, it is the unskilled local workers whose interests are threatened by optimal immigration policy.  相似文献   
30.
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