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   154204篇
  免费   3481篇
  国内免费   6篇
财政金融   27747篇
工业经济   12913篇
计划管理   25335篇
经济学   32188篇
综合类   3126篇
运输经济   1072篇
旅游经济   2571篇
贸易经济   25395篇
农业经济   7323篇
经济概况   19703篇
信息产业经济   8篇
邮电经济   310篇
  2021年   1342篇
  2020年   2112篇
  2019年   2659篇
  2018年   2560篇
  2017年   2952篇
  2016年   3001篇
  2015年   2513篇
  2014年   3941篇
  2013年   16143篇
  2012年   5586篇
  2011年   6243篇
  2010年   5801篇
  2009年   5483篇
  2008年   5278篇
  2007年   4419篇
  2006年   5019篇
  2005年   4923篇
  2004年   3441篇
  2003年   3216篇
  2002年   3176篇
  2001年   2873篇
  2000年   2666篇
  1999年   2532篇
  1998年   2351篇
  1997年   2366篇
  1996年   2212篇
  1995年   1984篇
  1994年   2015篇
  1993年   1984篇
  1992年   2024篇
  1991年   1904篇
  1990年   1806篇
  1989年   1679篇
  1988年   1615篇
  1987年   1599篇
  1986年   1679篇
  1985年   2426篇
  1984年   2324篇
  1983年   2108篇
  1982年   1980篇
  1981年   1911篇
  1980年   1882篇
  1979年   1809篇
  1978年   1633篇
  1977年   1625篇
  1976年   1391篇
  1975年   1278篇
  1974年   1187篇
  1973年   1187篇
  1972年   900篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
871.
A bstract . Official perceptions of agriculture's role in economic development in the Eastern European Soviet-type economies have undergone significant alterations over the past several decades. These changes have been especially important in Hungary , a country well known for its unorthodox economic approaches. The modifications of status analyzed below have been consistent with the overall economic policy directives of the Communist party, including the current renewed emphasis on economic rationality, pragmatism , and the revitalization of the economic reform of 1968 .  相似文献   
872.
873.
The objective of this paper is to examine the effects of marking‐to‐market of futures contracts on the price differential between futures and forward contracts based on the predictions of the Cox, Ingersoll and Ross (1981) (CIR) model. Cox et al ., (1981) derive a series of propositions with respect to the relationship between futures and forward prices and a set of testable implications. These are tested empirically in this paper using Australian data from November 1991 to June 1997. The results provide evidence of the presence of significant futures and forward price differences, where the futures price is consistently below the forward price. Only partial support is found for the Cox et al ., (1981) propositions, implying that the effect of marking‐to‐market is not able to fully account for the price differential. Therefore, it is not possible to rule out the influence of other institutional factors on the futures‐forward price difference.  相似文献   
874.
一、世界科技园区的成功经验借鉴硅谷与世界上其它科技园区的一个很大不同在于它是自发形成的一个高技术发源地和集聚地,而不是由政府主导创办起来的。在硅谷的发展过程中,风险投资自始至终都起到了不可替代的重要作用。在20世纪50~60年代,硅谷主要靠军事研究经费和国防采购支  相似文献   
875.
876.
877.
While the benefits of being market oriented are largely accepted, a group of scholars and managers remain skeptical. Marketing scholars have sought to counter the criticisms leveled against market orientation (MO) by arguing that it has both responsive and proactive dimensions. However, few studies have empirically examined the complexity of the effects of these dimensions on firm performance. Drawing on theories of resource‐based advantage and organizational search behavior, this article advances understanding by arguing that responsive and proactive market orientations have curvilinear effects on product development performance, that their interaction may be positively related to product development performance, and that their effects on new product program performance are moderated differentially by the organizational implementation conditions and marketing function power. Survey results of 175 U.S. firms indicate support for most of the hypotheses. Specifically, whereas responsive MO has a U‐shaped relationship with new product program performance, proactive MO has an inverted U‐shaped relationship with new product program performance. Contrary to the arguments presented here, the interaction of both orientations is negatively related to new product program performance. This study finds that both orientations are needed; however, new product program performance is enhanced when one is at higher level and the other is at lower level. Finally, responsive MO is only positively related to new product program performance under specific conditions such as when strategic consensus among managers is high. On the other hand, the positive effect of proactive MO on new product program performance is further strengthened when learning orientation and marketing power are high. Overall, this study suggests that the effects of responsive and proactive MO on new product program performance are more complex than previously theoretically argued and empirically examined.  相似文献   
878.
879.
This paper reviews the theoretical literature on bank capital regulation and analyzes some of the approaches to redesigning the 1988 Basel Accord on capital standards. The paper starts with a review of the literature on the design of the financial system and the existence of banks. It proceeds with a presentation of the market failures that justify banking regulation and an analysis of the mechanisms that have been suggested to deal with these failures. The paper then reviews the theoretical literature on bank capital regulation. This is followed by a brief history of capital regulation since the 1988 Basel Capital Accord and a presentation of both the alternative approaches that have been put forward on setting capital standards and the Basel Committee's proposal for a new capital adequacy framework.  相似文献   
880.
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