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   135028篇
  免费   3815篇
  国内免费   2篇
财政金融   25440篇
工业经济   11589篇
计划管理   21591篇
经济学   28851篇
综合类   1456篇
运输经济   955篇
旅游经济   2475篇
贸易经济   23321篇
农业经济   6089篇
经济概况   16834篇
信息产业经济   7篇
邮电经济   237篇
  2021年   822篇
  2020年   1609篇
  2019年   2357篇
  2018年   2260篇
  2017年   2453篇
  2016年   2651篇
  2015年   2065篇
  2014年   3375篇
  2013年   15187篇
  2012年   4181篇
  2011年   4113篇
  2010年   3671篇
  2009年   4301篇
  2008年   3869篇
  2007年   3236篇
  2006年   3568篇
  2005年   3542篇
  2004年   3103篇
  2003年   2849篇
  2002年   2836篇
  2001年   2593篇
  2000年   2520篇
  1999年   2425篇
  1998年   2265篇
  1997年   2313篇
  1996年   2177篇
  1995年   1981篇
  1994年   2005篇
  1993年   1963篇
  1992年   2029篇
  1991年   1918篇
  1990年   1815篇
  1989年   1672篇
  1988年   1609篇
  1987年   1610篇
  1986年   1695篇
  1985年   2455篇
  1984年   2330篇
  1983年   2145篇
  1982年   1998篇
  1981年   1924篇
  1980年   1912篇
  1979年   1843篇
  1978年   1630篇
  1977年   1622篇
  1976年   1378篇
  1975年   1272篇
  1974年   1185篇
  1973年   1186篇
  1972年   898篇
排序方式: 共有10000条查询结果,搜索用时 318 毫秒
181.
Objections to the teaching of business ethics   总被引:1,自引:0,他引:1  
  相似文献   
182.
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   
183.
184.
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   
185.
186.
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   
187.
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   
188.
189.
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   
190.
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   
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