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   35721篇
  免费   598篇
  国内免费   1篇
财政金融   6298篇
工业经济   2443篇
计划管理   5928篇
经济学   7946篇
综合类   747篇
运输经济   165篇
旅游经济   326篇
贸易经济   7412篇
农业经济   923篇
经济概况   3488篇
信息产业经济   45篇
邮电经济   599篇
  2023年   102篇
  2021年   126篇
  2020年   269篇
  2019年   364篇
  2018年   2729篇
  2017年   2533篇
  2016年   1663篇
  2015年   407篇
  2014年   566篇
  2013年   2063篇
  2012年   1017篇
  2011年   2553篇
  2010年   2328篇
  2009年   2146篇
  2008年   2121篇
  2007年   2404篇
  2006年   592篇
  2005年   850篇
  2004年   942篇
  2003年   1076篇
  2002年   673篇
  2001年   481篇
  2000年   478篇
  1999年   378篇
  1998年   377篇
  1997年   398篇
  1996年   344篇
  1995年   340篇
  1994年   314篇
  1993年   308篇
  1992年   319篇
  1991年   309篇
  1990年   257篇
  1989年   244篇
  1988年   200篇
  1987年   210篇
  1986年   208篇
  1985年   287篇
  1984年   289篇
  1983年   291篇
  1982年   241篇
  1981年   250篇
  1980年   226篇
  1979年   239篇
  1978年   190篇
  1977年   180篇
  1976年   184篇
  1975年   140篇
  1974年   146篇
  1973年   126篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
In this article the impact of technology education, as a new learning area (subject) in the curriculum, on in-service teacher education in South Africa is described in order to ascertain the extent of the impact. The research on which this article is based draws on a variety of experiences and observations in the field at grassroots level (in particular an outreach project in rural communities). The envisaged impact of technology education on South African schools, communities, teacher educators and teachers, the range of in-service teacher education that is required, and the impacts in urban and rural areas are discussed. Finally a number of concluding remarks are made about the extent of the impact of the inclusion of technology education in the new National Curriculum Statement and whether the situation has changed since the implementation of a pilot technology education project in 1998. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
93.
The introduction of traffic management schemes has been one response of the National Parks to the problem of ever-increasing car-borne visitors and the consequent damage caused to the rural environment. By reviewing these schemes and by determining and explaining attitudes towards one particular traffic management experiment, the paper aims to deduce lessons for future policy. The analysis, based on two visitor surveys, suggests that the likelihood of success is improved when schemes are integrated, containing both ‘carrot’ and ‘stick’ elements. Since public perceptions are also found to be pivotal to its success, appropriate marketing of a scheme is vital. The paper concludes, however, that to achieve the fundamental objective of greater accessibility with less mobility, a more wide-ranging marketing effort is required intended to engender a sea change in attitude towards both the car and public transport.  相似文献   
94.
This paper compares the approximation capabilities of the minflex-Laurents translog and minflex generalized Leontief cost functions with their translog and generalized Leontief counterparts in Monte Carlo experiments. The minflex Laurent specifications generally provided closer approximations to underlying technical and economic parameters. Imposition of nonlinear restrictions on some of the parameters of the minflex Laurent models yielded measurable improvement in estimated elasticities of substitutions, returns to scale, and rates of technical change.The refereeing process of this paper was handled through E. Appelbaum.  相似文献   
95.
96.
Offshoring in the New Global Political Economy   总被引:5,自引:1,他引:4  
abstract    This essay challenges claims by economists and management scholars that 'offshoring' is simply another form of trade with mutual benefits. I argue that reducing wages through offshoring leads to wealth creation for shareholders but not necessarily for countries and employees, and that many displaced workers have difficulty 'trading up' to higher skilled jobs. Offshoring is a new phenomenon that entails the organizational and technological ability to relocate specific tasks and coordinate a geographically dispersed network of activities. It decouples the linkages between economic value creation and geographic location. The result is the creation of global commodity markets for particular skills and a shift in the balance of market power among firms, workers, and countries.  相似文献   
97.
In social project appraisal, the policy profile of both distributional welfare weights and the social discount rate has risen considerably in recent years. This fact has important implications for the allocation of funds to social projects and policies in countries, and in unions of countries such as the EU. A key component in the formulae for both welfare weights and the social discount rate is the elasticity of marginal utility of consumption, e. A critical review of existing evidence on e suggests that the UK Treasury's preferred value of unity is too low. New evidence presented in this paper, based on the structure of personal income tax rates, suggests that, on average, for developed countries e is close to 1.4. This particular approach to the estimation of e has previously been under‐utilised by researchers.  相似文献   
98.
99.
100.
For many if not most publicly traded companies, acquisition capabilities remain a critical component of sustainable longterm growth and profitability. And even as investors press companies to return excess capital through dividends and stock buybacks, the market continues to assign premium valuations to companies that earn above-average returns through a combination of internal investment and judicious acquisition spending.
This article begins by describing major challenges facing acquirers in the current business and regulatory environment. Then, after showing how M&A can be used to address strategic goals, the authors identify key elements in the M&A strategies of three highly successful companies: General Electric, Danaher, and Illinois Tool Works.  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