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   15343篇
  免费   322篇
财政金融   2938篇
工业经济   1297篇
计划管理   2565篇
经济学   3242篇
综合类   159篇
运输经济   120篇
旅游经济   270篇
贸易经济   2280篇
农业经济   712篇
经济概况   2078篇
信息产业经济   1篇
邮电经济   3篇
  2021年   103篇
  2020年   170篇
  2019年   222篇
  2018年   325篇
  2017年   309篇
  2016年   289篇
  2015年   201篇
  2014年   334篇
  2013年   1606篇
  2012年   451篇
  2011年   456篇
  2010年   439篇
  2009年   511篇
  2008年   439篇
  2007年   372篇
  2006年   350篇
  2005年   287篇
  2004年   303篇
  2003年   302篇
  2002年   288篇
  2001年   291篇
  2000年   328篇
  1999年   287篇
  1998年   265篇
  1997年   276篇
  1996年   255篇
  1995年   234篇
  1994年   230篇
  1993年   270篇
  1992年   245篇
  1991年   251篇
  1990年   237篇
  1989年   220篇
  1988年   208篇
  1987年   187篇
  1986年   216篇
  1985年   293篇
  1984年   269篇
  1983年   270篇
  1982年   225篇
  1981年   222篇
  1980年   241篇
  1979年   201篇
  1978年   172篇
  1977年   165篇
  1976年   144篇
  1975年   131篇
  1974年   111篇
  1973年   111篇
  1972年   84篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
131.
132.
133.
134.
135.
136.
Many public and private organizations are developing and publishing clinical guidelines to assist health care providers and patients in making appropriate medical decisions. Unless clinical guidelines are part of a well-designed managed care program, they have little effect on physician practice styles. This article explores integral components of an effective guideline-based utilization management program. Initial evaluation of this program suggests that, as part of a well-designed utilization management program, clinical guidelines can inform patients and physicians, and create appropriate incentives for effective health care delivery.  相似文献   
137.
138.
139.
Theories of firm growth are reviewed and various models examined. The firm growth and job generation process in the UK over the period 1985–87, is examined empirically, by using the very large data files of the Dun and Bradstreet credit rating organisation. In the analysis, four computer processes were carried out; the sorting and matching of files, the cleaning of the data, the validation of the cleaned data, and the scaling up the results. The final adjusted data were grossed-up to provide an overview of the growth and job generation potential of UK firms. This is compared with past results for the periods 1971–81, and 1982–84. Small firms performed well, providing 48% of all new jobs, although consisting of only 21% of all employment in 1985. The 1000+ employee range provided only 13% of all new jobs over the period, although consisting of 37% of all employment in 1985. An overall trend of positive performance in smaller firms, and negative in larger firms was apparent. The 20–49 employee cohort performed unusually poorly in firm and job creation, against the expected pattern. The effect of takeovers, mergers and rationalisations on employment was examined. As expected, there was negligible restructuring of small firms, but over 5% of employees in the largest 1000+ cohort were involved in some form of reorganisation.In this and the two previous studies for 1971–81 and 1982–84, we found a consistent pattern of small firms as net generators of jobs, and large firms as net losers. This overall net behaviour is essential for the overall stability of the population, and can not be seen in good or bad terms. Bolton in 1971 found that the UK had an unduly small and weak small-firm sector. That trend to concentration is being reversed.This research was supported by the Department of Employment, Small Firms Division.  相似文献   
140.
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