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   35322篇
  免费   720篇
财政金融   6487篇
工业经济   2583篇
计划管理   5854篇
经济学   8052篇
综合类   681篇
运输经济   265篇
旅游经济   548篇
贸易经济   5623篇
农业经济   1709篇
经济概况   4152篇
信息产业经济   3篇
邮电经济   85篇
  2021年   216篇
  2020年   422篇
  2019年   668篇
  2018年   722篇
  2017年   778篇
  2016年   737篇
  2015年   521篇
  2014年   810篇
  2013年   3689篇
  2012年   1098篇
  2011年   1196篇
  2010年   1033篇
  2009年   1131篇
  2008年   1100篇
  2007年   923篇
  2006年   830篇
  2005年   761篇
  2004年   697篇
  2003年   719篇
  2002年   668篇
  2001年   758篇
  2000年   754篇
  1999年   634篇
  1998年   714篇
  1997年   670篇
  1996年   630篇
  1995年   573篇
  1994年   578篇
  1993年   585篇
  1992年   597篇
  1991年   591篇
  1990年   542篇
  1989年   413篇
  1988年   418篇
  1987年   417篇
  1986年   404篇
  1985年   581篇
  1984年   621篇
  1983年   560篇
  1982年   513篇
  1981年   528篇
  1980年   492篇
  1979年   494篇
  1978年   402篇
  1977年   347篇
  1976年   337篇
  1975年   279篇
  1974年   274篇
  1973年   266篇
  1972年   176篇
排序方式: 共有10000条查询结果,搜索用时 51 毫秒
41.
42.
The historic focus of new products research has been on the ability of new products to enhance the profitability and competitive position of the innovating firm. In this article, Timothy Devinney shows that there exists an overlooked and potentially significant side effect associated with new product innovations: financial risk changes. He reports that significant financial risk changes occurred in approximately 50% of the new product announcements he examined. The magnitude of these financial risk changes translates into overestimates or underestimates of the firm's cost of capital by 17% to 18% and is strongly and positively related to the size of the firm and the firm's new product innovation activity.  相似文献   
43.
44.
A growing awareness of workplace hazards and identification of airborne contaminants, coupled with a changing safety and health regulatory environment, created an unexpected demand for new and innovative respirators in the early 1980s. 3M's Occupational Health and Environmental Safety Division broke new ground by taking the team concept further than ever before in the company. The division's Action Teams successfully designed, built and introduced products in less than half the time it would have taken previously. Robert Hershock, Charles Cowman and Douglas Peters describe how 3M learned important lessons about team selection, training, performance and motivation, the importance of project sponsors, and the role of middle management.  相似文献   
45.
Summary In The Netherlands public debt management is in the hands of the budgetary policy-maker, whose recourse to the capital market can exceed or fall short of the total borrowing requirement in order to absorb or create liquidity. The conduct of that policy since the early 1960's is analyzed in this paper, emphasizing the importance of medium-term control over the public finances as a prerequisite for the ability of debt management to make a flexible contribution to monetary policy. During the 1960's this condition was satisfied and debt management followed a stable countercyclical pattern which, however, was abandoned after the early 1970's as the public finances swung into substantial disequilibrium.The author thanks J. Boughton, L. Bovenberg, D. Hendry, P. Masson, J. Muellbauer, and the referees for comments on earlier versions. However, the views expressed are his alone and do not necessarily represent those of the International Monetary Fund.  相似文献   
46.
47.
48.
Using Turkish industry-level data from 1983 to 1990, we find that politically organized industries receive both higher protection and promotion than unorganized ones. Tariff rates are decreasing (increasing) in the import-penetration ratio and the absolute value of the import-demandelasticity for organized (unorganized) industries. Subsidy rates are decreasing (increasing) in the output-supply elasticity for organized (unorganized) industries. The results are consistent with the predictions of the Grossman–Helpman model and its extension in this paper. The mix of protection and promotion is inversely related to the ratio of their respective marginal deadweight cost measures.  相似文献   
49.
A subclass of monotonic transferable utility (T.U.) games is studied: average monotonic games. These games are totally balanced. We prove that the core coincides with both the bargaining set à la Davis and Maschler and the bargaining set à la Mas-Colell. To obtain this result a technique based on reduced games is used. Journal of Economic Literature Classification Number: C71  相似文献   
50.
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