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   139336篇
  免费   3235篇
  国内免费   3篇
财政金融   26236篇
工业经济   11722篇
计划管理   22120篇
经济学   29749篇
综合类   1478篇
运输经济   983篇
旅游经济   2525篇
贸易经济   23861篇
农业经济   6285篇
经济概况   17365篇
信息产业经济   8篇
邮电经济   242篇
  2021年   842篇
  2020年   1643篇
  2019年   2421篇
  2018年   2419篇
  2017年   2577篇
  2016年   2778篇
  2015年   2105篇
  2014年   3430篇
  2013年   15444篇
  2012年   4278篇
  2011年   4312篇
  2010年   3827篇
  2009年   4434篇
  2008年   4023篇
  2007年   3359篇
  2006年   3658篇
  2005年   3632篇
  2004年   3199篇
  2003年   2971篇
  2002年   2934篇
  2001年   2668篇
  2000年   2619篇
  1999年   2522篇
  1998年   2335篇
  1997年   2399篇
  1996年   2256篇
  1995年   2057篇
  1994年   2060篇
  1993年   2055篇
  1992年   2101篇
  1991年   1988篇
  1990年   1855篇
  1989年   1706篇
  1988年   1645篇
  1987年   1639篇
  1986年   1735篇
  1985年   2506篇
  1984年   2361篇
  1983年   2167篇
  1982年   2014篇
  1981年   1952篇
  1980年   1934篇
  1979年   1852篇
  1978年   1677篇
  1977年   1655篇
  1976年   1403篇
  1975年   1291篇
  1974年   1203篇
  1973年   1196篇
  1972年   904篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Abstract: The dwindling nature of overseas development assistance in the early part of the 1990s called for the establishment of capital markets in some African countries, including Ghana, with the view to increasing foreign direct investments and achieving sustainable inflows, growth and development. One important factor which affects the determination of prices and the growth of capital markets is macroeconomic risk which is quite high in developing countries. Following works done on advanced stock markets, this study seeks to investigate the impact of six macroeconomic risk factors on asset pricing in the various industrial classification — financial, manufacturing, food and beverages, distribution and mining under the Ghana Stock Exchange (GSE) for the period January 1997 to December 2002. Using the arbitrage pricing methodology developed by Ross (1976) and Chen et al. (1986) , the study revealed that investors in Ghana considered three main macroeconomic risk factors — short‐term interest rate risk, inflation risk and the term structure of the country's interest rate in the determination of the various industrial asset prices during the period under consideration. Analysis of the risks and returns profile of the industries also shows that financial assets made the best gains on the market. Both general and specific policy recommendations aimed at improving the performance of the GSE are explored.  相似文献   
992.
Supply chain management (SCM) is implemented by integrating corporate functions using business processes within and across companies. Several process‐oriented frameworks for SCM have been proposed but only two of these provide sufficient detail to enable implementation. We evaluate the Supply‐Chain Operations Reference (SCOR) framework and The Global Supply Chain Forum (GSCF) framework using four criteria and identify their relative strengths and weaknesses.  相似文献   
993.
This article is a navigation guide to the twenty papers that emerged from the workshops conducted at the Sixth Invitational Choice Symposium (Estes Park, Colorado, June 2004). The papers are categorized into three broad sets that focus respectively on choice modeling issues, on providing interdisciplinary perspectives on choice, and on relating choice research to real world concerns. Within each category, we offer provide brief integrative overviews linking subsets of papers.  相似文献   
994.
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   
995.
996.
997.
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   
998.
999.
The impact of regulatory change on employee relations within the UK television industry is examined. While collective labour regulation was initially eroded, employment fragmentation, combined with increased demand for programming and a shortage of skills provided the basis for the maintenance of the bargaining power of key groups of workers.  相似文献   
1000.
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