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   32136篇
  免费   760篇
财政金融   5944篇
工业经济   2544篇
计划管理   5586篇
经济学   7301篇
综合类   316篇
运输经济   284篇
旅游经济   536篇
贸易经济   5291篇
农业经济   1661篇
经济概况   3353篇
信息产业经济   3篇
邮电经济   77篇
  2023年   166篇
  2021年   226篇
  2020年   441篇
  2019年   672篇
  2018年   729篇
  2017年   762篇
  2016年   733篇
  2015年   525篇
  2014年   822篇
  2013年   3467篇
  2012年   1073篇
  2011年   1151篇
  2010年   990篇
  2009年   1168篇
  2008年   1085篇
  2007年   947篇
  2006年   927篇
  2005年   807篇
  2004年   728篇
  2003年   765篇
  2002年   678篇
  2001年   719篇
  2000年   676篇
  1999年   615篇
  1998年   652篇
  1997年   617篇
  1996年   571篇
  1995年   522篇
  1994年   520篇
  1993年   489篇
  1992年   485篇
  1991年   500篇
  1990年   454篇
  1989年   350篇
  1988年   350篇
  1987年   368篇
  1986年   322篇
  1985年   471篇
  1984年   490篇
  1983年   458篇
  1982年   395篇
  1981年   373篇
  1980年   375篇
  1979年   353篇
  1978年   291篇
  1977年   242篇
  1976年   242篇
  1975年   196篇
  1974年   193篇
  1973年   192篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
Managers and scholars emphasize the importance of inter‐departmental integration to successful product development and emphasize the importance of product development capabilities to firm performance. Interdepartmental integration can increase shared knowledge; this in turn can reduce the severity and incidence of seemingly unnecessary and costly mistakes leading to more efficient and effective product development. This paper examines the sources of shared knowledge problems across functional and product‐based groups. Using interviews, product development plans, and time‐sheet data, we look at the underlying factors behind two sources of knowledge sharing problems: (1) a serial product development process (i.e. little or no face‐to‐face communications) and (2) ineffective use of integrating mechanisms because of sticky knowledge. For each problem source, we find two key causal factors. We discuss the problems, their factors, and the implications for management and theory.  相似文献   
12.
This paper examines monthly wage data collected by the Agro Economic Survey from seven villages in the Cimanuk River Basin of West Java, where data on agricultural and non-agricultural wages and prices of nine essential commodities were collected twice monthly between 1977 and 1983. Movements in money wages deflated by both the rice price and a weighted index of basic commodities are analysed in detail and differences between lowland and upland villages are discussed.  相似文献   
13.
14.
15.
If actively managed mutual funds suffer from diminishing returns to scale, funds should alter investment behavior as assets under management increase. Although asset growth has little effect on the behavior of the typical fund, we find that large funds and small‐cap funds diversify their portfolios in response to growth. Greater diversification, especially for small‐cap funds, is associated with better performance. Fund family growth is related to the introduction of new funds that hold different stocks from their existing siblings. Funds with many siblings diversify less rapidly as they grow, suggesting that the fund family may influence a fund's portfolio strategy.  相似文献   
16.
Models that assume only consumer tastes determine the characteristics of supply are restrictive; producers can gain utility from aspects of production and pay for deviating from demand by accepting lower financial returns. We model and measure motivations of California winery owners, and analyze their effects on quality and price. We find utility–maximizers are more likely to produce high quality and set higher quality–adjusted prices. Profit–oriented owners are less likely to produce high quality wines. These results suggest that the presence of hobbyists who enjoy producing high quality may lower financial returns in the segment and discourage profit–maximizers from locating there.  相似文献   
17.
This article studies the role of risk arbitrageurs in takeoversand the source of their advantage. We show how the presenceof arbitrageurs affects the value of the target shares, sincearbitrageurs are more likely to tender. Therefore an arbitrageurhas the informational advantage of knowing he bought shares.In equilibrium, the number of arbitrageurs buying shares andthe price they pay are determined endogenously. We also presentseveral empirical implications, including the relationship amongtrading volume, takeover premium, liquidity of the shares, andthe number of risk arbitrageurs investing in one particulardeal.  相似文献   
18.
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).  相似文献   
19.
20.
This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance.  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