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   43464篇
  免费   732篇
  国内免费   1篇
财政金融   7368篇
工业经济   2635篇
计划管理   7053篇
经济学   10110篇
综合类   729篇
运输经济   198篇
旅游经济   402篇
贸易经济   8754篇
农业经济   1345篇
经济概况   4918篇
信息产业经济   47篇
邮电经济   638篇
  2023年   137篇
  2021年   177篇
  2020年   342篇
  2019年   549篇
  2018年   2846篇
  2017年   2636篇
  2016年   1835篇
  2015年   499篇
  2014年   778篇
  2013年   2907篇
  2012年   1336篇
  2011年   2840篇
  2010年   2569篇
  2009年   2346篇
  2008年   2279篇
  2007年   2540篇
  2006年   769篇
  2005年   977篇
  2004年   995篇
  2003年   1123篇
  2002年   754篇
  2001年   663篇
  2000年   597篇
  1999年   490篇
  1998年   576篇
  1997年   496篇
  1996年   495篇
  1995年   441篇
  1994年   418篇
  1993年   429篇
  1992年   432篇
  1991年   447篇
  1990年   407篇
  1989年   325篇
  1988年   324篇
  1987年   329篇
  1986年   326篇
  1985年   426篇
  1984年   433篇
  1983年   385篇
  1982年   344篇
  1981年   348篇
  1980年   353篇
  1979年   335篇
  1978年   268篇
  1977年   231篇
  1976年   219篇
  1975年   210篇
  1974年   180篇
  1973年   184篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
In rational, efficiently functioning and complete markets, returns on derivative and underlying securities should be perfectly contemporaneously correlated. Due to market imperfections, one of these markets may reflect information faster. The use of high-frequency data and the choice for a small unit time interval to measure these lead-lag relations comes at the cost of some or many missing observations, causing traditional estimators to either under- or overestimate covariances and correlations. We use a new estimator to estimate lead-lag relationships between the cash AEX index, options and futures. We find that futures returns lead both options and cash index returns by approximately 10 minutes. The relationship between options and the cash market is not completely unidirectional.  相似文献   
72.
73.
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   
74.
Objections to the teaching of business ethics   总被引:1,自引:0,他引:1  
  相似文献   
75.
Asset market hangovers and economic growth: the OECD during 1984-93   总被引:1,自引:0,他引:1  
Asses prices and investment were unusually weak throughout theindustrial world during the early 1990s. This paper highlightsthis stylized fact, and connects it with another: in most ofthe industrial world, asset markets boomed for several yearsbefore collapsing around 1989. The paper suggests that assetmarket bubbles during the late 1980s may have left the industrialworld with an 'asset market hangover' in the early 1990s, inthe form of sluggish asset markets and investment. Empiricalsupport for this hypothesis is provided based on cross-countrydata for equity and real estate markets in most industrial countries.We suggest that financial market developments not justifiedby fundamentals can substantially affect real activity.  相似文献   
76.
77.
78.
This article surveys recent research of the Spanish colonial era in the Philippines since the late eighteenth century. While highlighting imperfections in our understanding, the article establishes the parameters with which the Philippine economy entered the twentieth century. It outlines the intensification of Spanish colonial rule through changes in the taxation system, particularly the expansion of forced tobacco cultivation until its abolition in 1882. Since then, the Spanish set out to further change and intensify colonial rule but contradictions in the system of colonial rule caused the effort to come to an abrupt end in 1898.  相似文献   
79.
80.
The number of firms using alliances as part of their corporate venturing or market entry strategies has surged over the past decade. Three common reasons cited for pursuing alliances are technology convergence, market access and alliance partners' complementary resources. This paper contrasts the alliance strategies of HP and IBM, two major competitors in electronic services (i.e. Internet-based 'e- service') businesses, using the Familiarity Matrix as a display tool to portray the strategies. Whereas the HP strategy is to attempt to establish its technology infrastructure as the standard e-services infrastructure on the Internet, IBM aims to position its IBM Global Services, rather than its technology, at the center of this ecosystem.  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