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   20933篇
  免费   450篇
  国内免费   13篇
财政金融   4015篇
工业经济   1618篇
计划管理   3357篇
经济学   4575篇
综合类   416篇
运输经济   132篇
旅游经济   388篇
贸易经济   3923篇
农业经济   970篇
经济概况   1978篇
邮电经济   24篇
  2021年   141篇
  2020年   234篇
  2019年   359篇
  2018年   396篇
  2017年   424篇
  2016年   426篇
  2015年   320篇
  2014年   455篇
  2013年   2048篇
  2012年   579篇
  2011年   636篇
  2010年   589篇
  2009年   648篇
  2008年   711篇
  2007年   657篇
  2006年   583篇
  2005年   574篇
  2004年   505篇
  2003年   521篇
  2002年   480篇
  2001年   429篇
  2000年   437篇
  1999年   381篇
  1998年   406篇
  1997年   381篇
  1996年   390篇
  1995年   353篇
  1994年   340篇
  1993年   362篇
  1992年   340篇
  1991年   320篇
  1990年   303篇
  1989年   261篇
  1988年   214篇
  1987年   263篇
  1986年   248篇
  1985年   405篇
  1984年   394篇
  1983年   398篇
  1982年   320篇
  1981年   329篇
  1980年   279篇
  1979年   293篇
  1978年   237篇
  1977年   258篇
  1976年   219篇
  1975年   169篇
  1974年   144篇
  1973年   146篇
  1972年   95篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
A new reimbursement policy adopted by Medicare in 1983 caused financial difficulties for many hospitals and health care organizations. Several organizations responded to these difficulties by developing systems to carefully measure their costs of providing services. The purpose of such systems was to provide relevant information about the profitability of hospital services. This paper presents a new method of making hospital service selection decisions: it is based on an optimization model that avoids arbitrary cost allocations as a basis for computing the costs of offering a given service. The new method provides more reliable information about which services are profitable or unprofitable, and it provides an accurate measure of the degree to which a service is profitable or unprofitable. The new method also provides useful information about the sensitivity of the optimal decision to changes in costs and revenues. Specialized algorithms for the optimization model lead to very efficient implementation of the method, even for the largest health care organizations.  相似文献   
122.
Any reader who has children will agree that they make special patients, whether at home or in the hospital. These patients have unique requirements for love and compassionate care, and children's hospitals deliver on their promises. The well-run children's hospitals researched for this article have converted their material management operational challenges to opportunities. They have built thoughtful material management strategic plans, reorganized their support services to provide customer service to end users, and they have centered their materiel management efforts around service and quality improvement.  相似文献   
123.
Abstract . The economic performance and the political history of Botswana during 1974-84 contrasted significantly with the experience of virtually every other African country. The South African republic, immediately north of the Republic of South Africa, achieved steady real economic growth with improved social services and provision for its people's basic needs. This was achieved in spite of world recession and drought because its mineral wealth Was reserved for the people and mining companies had to pay for the privilege of extracting that wealth through a tax program limited to appropriating its surplus, while assuring the investors and entrepreneurs an adequate long-term return on capital and enterprise. But sound macroeconomic policies failed to provide even reasonably equitable benefits for the majority of the people. Sound micropolicies are needed to widen access to employment and earned income and to asset accumulation.  相似文献   
124.
Simulated annealing: An introduction   总被引:1,自引:0,他引:1  
  相似文献   
125.
The purpose of this paper is to investigate the strategies of managerial control which are used by the proprietors of family-owned business enterprises. Interviews with the proprietors and senior managers of businesses in the building industry illustrate the ‘quasi-organic’ nature of management structures. These grant some autonomy to senior managers without threatening proprietorial decision-making prerogatives. Although the family firm has certain distinctive features, similar control strategies designed to ensure that delegated decisions are ‘reliable’ and ‘responsible’ are evident in various types of business enterprise. There is, then, scope for further comparative research within a conceptual framework which does not entirely divorce the family firm from other business organizations.  相似文献   
126.
Effective conflict resolution procedures serve to minimize dysfunctional effects of conflict and maximize functional effects. In the literature on conflict resolution procedures, the effectiveness of procedures has been evaluated primarily from the perspective of the individual. This article suggests that a system-level analysis of the pattern of outcomes resulting from different conflict resolution procedures is a necessary component in formulating a comprehensive framework for the design and evaluation of conflict resolution systems in organizations. The analytic questions addressed by this study concern associations between resolution procedures and outcome patterns in a system created specifically for conflict resolution within organizations: the grievance system. The pattern of outcomes was found to vary with the conflict resolution procedure. It is suggested that this has important implications for effective conflict resolution systems.  相似文献   
127.
Collaborating researchers used a multi equation model to analyze 3080 mother-infant pairs living on the island of Cebu in the central Philippines and to estimate a child health production function. The econometric methods used eliminated obstacles such as heterogeneity and endogeneity of significant explanatory factors. They also maximized the longitudinal quality of the data. The results showed that morbidity in 1 period reduced infant weight in following periods. For example, diarrhea and febrile respiratory infection reduced growth in the time period following the illnesses. Further effects of some contributing factors were great near birth not diminished with age. For example, breast feeding promoted growth and protected against infection, especially diarrhea and febrile respiratory infection, more substantially near birth than it did later. Further, in urban areas, preventive health care positively affected growth independently of its indirect influence on reducing respiratory infection. Yet it had little effect on diarrhea. Diarrhea had a strong adverse effect on growth. Exposure of the infant to enteric pathogens had the greatest influence on production of diarrhea. In urban areas, exposure included water supply contamination, exposure to feces, a more pathogenic diet, and community crowding. In rural areas, however, exposure included community crowding and increased rainfall which presumably washed feces into the water supply. Household crowding in both urban and rural areas and irritation from smoke in urban areas only tended to bring about febrile respiratory infection.  相似文献   
128.
The 1990s will be a decade of increasing dramatic and traumatic change for hospitals. Reimbursement, technology, and consumers, either alone or in concert, will be the forces that will shape hospitals in the future. At the end of the 1990s we will have hospitals that offer technology to the critically ill, outpatient surgical services, and comforting care for those in the late years of life. Material management will be important to hospitals because expense control will be as important as ever. However, I believe the role of a material manager will diminish as the services provided change and as the role is folded into the responsibilities of those who manage one of the three critical business areas hospitals will be in. This new hybrid of today's manager will still apply all of the concepts to the distribution of supplies in a hospital as today's material managers do but will use them as only a part of their overall management responsibility.  相似文献   
129.
A recent article in this journal by Dran (1991) suggests that the usual treatment of degree of operating leverage (DOL) is misleading because it improperly attributes the DOL to the ratio of fixed to total costs rather than the closeness of the firm’s output to breakeven. Managerial economics texts are clear in identification of DOL as an elasticity concept which varies with the nearness to break-even. Examples associating DOL with the relative level of fixed cost arise from association of higher fixed costs with higher breakeven points, and this appears to be the normal economic relationship.  相似文献   
130.
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