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   6870篇
  免费   147篇
财政金融   1322篇
工业经济   612篇
计划管理   1155篇
经济学   1451篇
综合类   72篇
运输经济   37篇
旅游经济   103篇
贸易经济   1136篇
农业经济   357篇
经济概况   768篇
信息产业经济   1篇
邮电经济   3篇
  2021年   48篇
  2020年   83篇
  2019年   117篇
  2018年   149篇
  2017年   142篇
  2016年   158篇
  2015年   81篇
  2014年   155篇
  2013年   679篇
  2012年   208篇
  2011年   246篇
  2010年   191篇
  2009年   229篇
  2008年   190篇
  2007年   185篇
  2006年   157篇
  2005年   172篇
  2004年   143篇
  2003年   148篇
  2002年   130篇
  2001年   160篇
  2000年   155篇
  1999年   140篇
  1998年   126篇
  1997年   115篇
  1996年   117篇
  1995年   112篇
  1994年   97篇
  1993年   113篇
  1992年   118篇
  1991年   101篇
  1990年   105篇
  1989年   101篇
  1988年   110篇
  1987年   89篇
  1986年   106篇
  1985年   114篇
  1984年   109篇
  1983年   102篇
  1982年   108篇
  1981年   102篇
  1980年   106篇
  1979年   81篇
  1978年   102篇
  1977年   73篇
  1976年   71篇
  1975年   56篇
  1974年   50篇
  1973年   50篇
  1972年   42篇
排序方式: 共有7017条查询结果,搜索用时 0 毫秒
61.
62.
There has been great focus in the recent trade theory literature on the introduction of firm heterogeneity into trade models. This introduction has highlighted the importance of the entry/exit decision of firms in response to changes in trade barriers. However, it is typical in many of these models to use iceberg transport costs as a general form of trade barriers that can be interchangeable with ad valorem tariffs. I show that this is not always an appropriate conclusion. Specifically, I illustrate that profit for an exporter is more elastic in response to tariffs than iceberg transport costs, which affects the entry/exit decision of firms. This has implications for welfare analysis and empirical specifications.  相似文献   
63.
64.
65.
66.
New organizing factors are emerging as human resources professionals seek performance breakthroughs, with process and competency emerging as key factors in determining how the HR function is organized. While the process focus rides the wave of interest in total quality management and reengineering, a growing number of organizations see competence as the key to enduring performance and to making HR most effective. This article combines experience from the authors' work with some emerging possibilities to describe a competency-based approach for designing a high performing HR organization. © 1996 by John Wiley & Sons, Inc.  相似文献   
67.
This study investigates productivity growth in broad-acre agriculture in Western Australia. Tornqvist indices of three output groups (crops, sheep products and other) and five input groups (livestock, materials and services, labour, capital and land) are constructed and discussed. Indices of total output and total inputs are also derived and used to form an index of total factor productivity, that is observed to grow at an average annual rage of 2·7%. The input and output indices are also used in the estimation of output supply and input demand equations, derived from a flexible profit function. The Generalized McFadden functional form is used, because it is possible to impose global curvature upon it without loss of flexibility. Asymptotic chi-square tests reject the hypotheses of Hicks-neutral technical change in inputs and in outputs. Technical change is observed to be ‘materials and services’ saving relative to the other input groups, and also appears to favour wool and sheepmeat production relative to the other output groups.  相似文献   
68.
This paper examines the relationship between the passage of six types of corporate antitakeover provisions (supermajority, classified boards, fair-price, reduction in cumulative voting, anti-greenmail and poison pills) and stockholder wealth. Our event study from a sample of 381 firms that adopted 486 antitakeover provisions in the 1984 to 1988 period indicates a strongly negative effect on stockholder wealth, supporting the management entrenchment view of the antitakeover provisions. Moreover, the empirical results of this paper indicate that the market reacts equally negatively to both non-operating provisions that require stockholder approval and to operating provisions that do not require stockholder approval. However, separate analyses of the antitakeover provisions provide some support for the argument that stockholders discriminate between individual provisions.  相似文献   
69.
70.
A novel gelatin system for use in oil spills at sea provides rapid immobilization of liquids upon demand.  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