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   15956篇
  免费   315篇
  国内免费   1篇
财政金融   3398篇
工业经济   1169篇
计划管理   2665篇
经济学   3583篇
综合类   194篇
运输经济   67篇
旅游经济   232篇
贸易经济   2408篇
农业经济   799篇
经济概况   1680篇
邮电经济   77篇
  2020年   164篇
  2019年   226篇
  2018年   249篇
  2017年   303篇
  2016年   284篇
  2015年   195篇
  2014年   310篇
  2013年   1438篇
  2012年   386篇
  2011年   413篇
  2010年   360篇
  2009年   424篇
  2008年   371篇
  2007年   382篇
  2006年   350篇
  2005年   315篇
  2004年   288篇
  2003年   338篇
  2002年   308篇
  2001年   311篇
  2000年   356篇
  1999年   292篇
  1998年   305篇
  1997年   312篇
  1996年   299篇
  1995年   298篇
  1994年   307篇
  1993年   292篇
  1992年   326篇
  1991年   340篇
  1990年   270篇
  1989年   214篇
  1988年   235篇
  1987年   216篇
  1986年   249篇
  1985年   347篇
  1984年   332篇
  1983年   290篇
  1982年   306篇
  1981年   329篇
  1980年   279篇
  1979年   278篇
  1978年   252篇
  1977年   184篇
  1976年   185篇
  1975年   193篇
  1974年   141篇
  1973年   164篇
  1972年   120篇
  1971年   103篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
Managed-care programs with utilization reviews may be the best approach to cost cutting. But to really curb costs, providers, insurers, employers and employees must form partnerships to overcome the outrageous inflation in the U.S. health-care system.  相似文献   
102.
Team up to meet child-care needs   总被引:1,自引:0,他引:1  
Recognizing the importance of child care is not the same as providing it. The options for many employees are limited, but some employers are trying to assist employees with their child-care needs. One option that benefits many small to medium-sized companies is a child-care consortium.  相似文献   
103.
104.
California's City of Hope Medical Center has increased its food industry donations by seven figures through the Coupons of Hope program.  相似文献   
105.
Discriminating Among Alternative Theories of the Multinational Enterprise   总被引:6,自引:0,他引:6  
Recent theoretical developments have incorporated endogenous multinational firms into the general–equilibrium model of trade. One simple taxonomy separates the theory into "vertical" models, in which firms geographically separate activities by stages of production, and "horizontal" models, in which multiplant firms duplicate roughly the same activities in many countries. The authors nest a horizontal and a vertical model within a hybrid (unrestricted) "knowledge–capital model" and estimate the specifications with data on US foreign direct investment activity. In the nested econometric tests, the data sample cannot distinguish statistically between the unrestricted model and the restricted horizontal model, indicating that the latter captures virtually all of the determinants of FDI. The tests overwhelmingly reject the vertical model.  相似文献   
106.
107.
108.
109.
Seven computerprograms for non-linear regression or curve fitting problems are compared. The comparison of the programs, running in different computing centra, is restricted to the fit performance. Six model functions are fitted according to the least squares criterion to data series, arising from practical work. The special least squares minimization programs turned out to be better suited for these problems than general optimizing programs.  相似文献   
110.
Historically, major consideration given to product management has focused on research and development or the introductory stage of the product life cycle. The authors present an empirical study delineating the variables to be considered in the product elimination process. More specifically, the elimination process is evaluated under a situation of poor product performance despite a generally viable market. The basic objectives of the study were: to determine the significant variables in the product elimination process of the Small Appliance Industry; to determine the relative importance of the variables; to examine the interaction among variables. The data obtained through personal structured questionnaire interviews were analyzed and provided a ranking of twenty-six variables relevant to the elimination process. Moreover, the Johnson's Hierarchical Clustering Schemes was applied to determine the interaction among variables. The results indicate that profitability and financial variables are most significant in the elimination decision-process. Second, the primary clusters of importance are concerned with market share, market growth rate, consumer awareness, and competitive action.  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