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   139153篇
  免费   3885篇
  国内免费   15篇
财政金融   26182篇
工业经济   11733篇
计划管理   22259篇
经济学   29819篇
综合类   1729篇
运输经济   981篇
旅游经济   2497篇
贸易经济   23815篇
农业经济   6280篇
经济概况   17508篇
信息产业经济   9篇
邮电经济   241篇
  2021年   920篇
  2020年   1699篇
  2019年   2424篇
  2018年   2414篇
  2017年   2584篇
  2016年   2768篇
  2015年   2156篇
  2014年   3490篇
  2013年   15371篇
  2012年   4405篇
  2011年   4507篇
  2010年   3974篇
  2009年   4516篇
  2008年   4119篇
  2007年   3449篇
  2006年   3748篇
  2005年   3742篇
  2004年   3195篇
  2003年   2944篇
  2002年   2917篇
  2001年   2656篇
  2000年   2601篇
  1999年   2478篇
  1998年   2304篇
  1997年   2363篇
  1996年   2231篇
  1995年   2016篇
  1994年   2032篇
  1993年   2021篇
  1992年   2080篇
  1991年   1961篇
  1990年   1838篇
  1989年   1684篇
  1988年   1632篇
  1987年   1628篇
  1986年   1722篇
  1985年   2486篇
  1984年   2348篇
  1983年   2145篇
  1982年   2001篇
  1981年   1937篇
  1980年   1921篇
  1979年   1837篇
  1978年   1661篇
  1977年   1640篇
  1976年   1392篇
  1975年   1290篇
  1974年   1196篇
  1973年   1191篇
  1972年   898篇
排序方式: 共有10000条查询结果,搜索用时 593 毫秒
181.
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   
182.
183.
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   
184.
Objections to the teaching of business ethics   总被引:1,自引:0,他引:1  
  相似文献   
185.
In this paper, we examine the warrant price and stock price reactions to the announcement of warrant life extensions by REITs. As predicted by option pricing theory, warrant prices increase in response to these extensions. The stocks of REITs making the extension announcements experience average abnormal returns that are not significantly different from zero. Thus, total firm value appears to increase, with the gains accruing primarily to the warrantholders.  相似文献   
186.
187.
R.Q. Doeswijk 《De Economist》1997,145(4):573-598
The efficient markets hypothesis states that at any times security prices fully reflect all available information. Contrarian investment strategies do not recognize the efficiency of capital markets. They call for buying undervalued stocks, i.e. stocks with a low price relative to their fundamentals. The idea behind such a strategy is to take advantage of the extrapolation behaviour of naive investors. Using a fresh and extensive data set from the Dutch stock market, we found that these strategies yield an outperformance without a higher risk. Our results make it hard to maintain the efficient market hypothesis.  相似文献   
188.
189.
Abstract The research question in the present article can be phrased in the following way: what are the elements which influence the perception of the utility of information received from another function? A field study research has been conducted in 40 Belgian companies. In each company, we have studied two on-going innovation projects (one planning project, one development project). Crossfunctional communication behaviours at the R&D/marketing interface have been measured by means of mailed structured questionnaires. Three-hundred and eighty-six questionnaires have been returned. The data analyses show that there are four underlying information dimensions, i.e. the perceived relevance, the perceived comprehensibility, the perceived novelty and the perceived credibility of information. We also discuss some contingency variables (function of the message receiver, stage in the innovation process) that might moderate the impact of these dimensions. It will be shown that the interaction between source and receiver has a significant impact on the perceived credibility, the perceived comprehensibility and the perceived novelty of the received information.  相似文献   
190.
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   
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