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   91159篇
  免费   1956篇
  国内免费   3篇
管理学   12358篇
民族学   531篇
人才学   25篇
人口学   6946篇
丛书文集   525篇
教育普及   2篇
理论方法论   9392篇
综合类   2124篇
社会学   42449篇
统计学   18766篇
  2023年   511篇
  2021年   569篇
  2020年   1498篇
  2019年   2204篇
  2018年   2054篇
  2017年   3129篇
  2016年   2355篇
  2015年   2040篇
  2014年   2615篇
  2013年   18818篇
  2012年   2334篇
  2011年   2115篇
  2010年   1923篇
  2009年   2170篇
  2008年   2005篇
  2007年   1833篇
  2006年   2040篇
  2005年   2295篇
  2004年   2189篇
  2003年   1859篇
  2002年   1969篇
  2001年   2014篇
  2000年   1791篇
  1999年   1709篇
  1998年   1496篇
  1997年   1349篇
  1996年   1317篇
  1995年   1333篇
  1994年   1309篇
  1993年   1286篇
  1992年   1294篇
  1991年   1228篇
  1990年   1206篇
  1989年   1054篇
  1988年   1133篇
  1987年   1007篇
  1986年   911篇
  1985年   1065篇
  1984年   1156篇
  1983年   1028篇
  1982年   958篇
  1981年   864篇
  1980年   819篇
  1979年   888篇
  1978年   782篇
  1977年   701篇
  1976年   656篇
  1975年   634篇
  1974年   529篇
  1973年   455篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
This paper examines the mediating mechanism of the relationship between institutional voids (IVs) and inter‐firm cooperation and the moderating role of economic adversity in the context of small and medium‐sized enterprises (SMEs) based in emerging markets. The hypotheses are tested using time‐lagged survey data from 214 SMEs in Ghana. The findings provide support for the hypotheses by showing that: (1) IVs positively influence the use of government research and development (R&D) support; (2) the use of government R&D support mediates the relationship between IVs and inter‐firm cooperation; and (3) economic adversity positively moderates the relationship between IVs and the use of government R&D support. The findings contribute to understanding the role of IVs in inter‐firm cooperation. The wider implications for theory and practice are examined.  相似文献   
962.
Model building in physical, statistical, simulation or other form, is making an increasing contribution to the problem solving methodology in economics, industry, government, and technological development (1). More specifically, in the present context, simulation models can offer a distinctive and valuable contribution to the understanding by management of complex business systems, interactions and environment and indicate ways toward improvement, financial and otherwise (2). The advent of powerful computers in the last few years is the decisive factor which has decided the means of realizing the full potential of simulation models, hitherto unattainable because of the vast amount of data processing and calculation required. The purpose of this article is to indicate the approach to and scope of a computerized simulation model for long term production strategy decision making (3). While the model relates to the system and data of a specific production unit, manufacturing electronic components, the principles are widely applicable in any size and type of company. It is not a specifically large company technique.  相似文献   
963.
New Products are the life blood of a growing company, but traditional methods of introducing new products are no longer adequate. Du Pont is using a new approach called Venture Management. A New Venture Development provides an ideal environment for making and carrying out decisions involved in introducing new technological developments. It combines the advantages in mobility and communications enjoyed by a small venture-orientated company with the strong technical and financial advantages of a large company.  相似文献   
964.
965.
A survey of corporate Planning in Britain suggests that the way the process is organized varies with the need of the firm. There appear to be two types of needs which foster the development of the planning activity—strategy development and co-ordination. In capital intensive companies, threatened by technological or market change, there is a need for reappraisal of the firm's overall strategy. On the other hand, in a large diversified firm the requirement may be to co-ordinate the plans of different divisions and departments, particularly investment proposals. This article suggests a framework for the analysis of these planning needs.  相似文献   
966.
967.
968.
969.
970.
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