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   136149篇
  免费   3906篇
  国内免费   1篇
财政金融   25650篇
工业经济   11605篇
计划管理   21714篇
经济学   29251篇
综合类   1459篇
运输经济   977篇
旅游经济   2515篇
贸易经济   23571篇
农业经济   6148篇
经济概况   16892篇
信息产业经济   8篇
邮电经济   266篇
  2021年   862篇
  2020年   1658篇
  2019年   2447篇
  2018年   2381篇
  2017年   2567篇
  2016年   2744篇
  2015年   2120篇
  2014年   3451篇
  2013年   15414篇
  2012年   4252篇
  2011年   4194篇
  2010年   3752篇
  2009年   4372篇
  2008年   3928篇
  2007年   3256篇
  2006年   3581篇
  2005年   3566篇
  2004年   3109篇
  2003年   2887篇
  2002年   2870篇
  2001年   2607篇
  2000年   2538篇
  1999年   2432篇
  1998年   2284篇
  1997年   2339篇
  1996年   2207篇
  1995年   1993篇
  1994年   2009篇
  1993年   1986篇
  1992年   2027篇
  1991年   1921篇
  1990年   1806篇
  1989年   1681篇
  1988年   1599篇
  1987年   1596篇
  1986年   1684篇
  1985年   2442篇
  1984年   2317篇
  1983年   2109篇
  1982年   1974篇
  1981年   1913篇
  1980年   1880篇
  1979年   1800篇
  1978年   1632篇
  1977年   1625篇
  1976年   1383篇
  1975年   1274篇
  1974年   1189篇
  1973年   1189篇
  1972年   901篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
We evaluate journals based on their relative contributions to top-level finance research in a recent period. Journals are ranked according to the number of citations found in articles published in Journal of Finance, Journal of Financial Economics, Journal of Financial and Quantitative Analysis, and Review of Financial Studies. The analysis controls for both the average number of articles and average number of words published annually in each cited journal. We identify the fifty most frequently cited journals during this period. We also list the fifty most frequently cited authors and articles and note topical trends in the research.  相似文献   
202.
The value of a technology strategy has been increasingly discussed by R&D personnel and those involved in product development and business planning efforts. In this issue Albert Rubenstein and Americo Albala elevate this discussion by showing the importance of preparing a firm to compete by stressing the development of important, relevant technologies. Discovery and development must be channeled into areas that will be needed to support business initiatives likely to occur in the future. Albala stresses the importance of this change for the development of economies in nations that have been disappointed by the lack of success of importing technologies from more developed nations, while Rubenstein maintains that the pace of marketplace change requires a technology strategy in order to reduce the misapplication of scarce resources within the firm and the possibility of being blindsided by competitive developments. These essays continue a year-long series of contributions that the editor-in-chief solicited from members of the editorial board. Members were asked to reflect upon changes and opportunities that they see influencing our profession during the coming decade. Both of these short essays are designed to introduce new perspectives. It is not essential that you agree with the recommendations, but we hope that you are stimulated as you reflect on the issues they raise.  相似文献   
203.
204.
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   
205.
Analyzing synthetic cohorts in the 1980 and 1990 Public Use Microdata Samples, we find that Mexican‐Americans and other Hispanics acquired English fluency at a faster pace than Puerto Ricans and Cuban‐Americans during the 1980s. Additional results indicate that English‐skill investments differently influenced the earnings distributions of these ethnic groups.  相似文献   
206.
The study examines the origins of technology important to improving productivity in the food-processing industries. Technology flows were measured both by patents in patent classes closely identified with six food industries, and by a sample of significant food-processing innovations. These data are consistent with the hypothesis that interindustry technology flows are the most significant determinant of productivity improvements in the food industries. These findings solve the enigma that the food-processing industries have enjoyed rapid improvements in productivity despite making very modest investments in research and development.  相似文献   
207.

The paper deals with effects of price changes on measurement of poverty. It is shown that there are situations, when prices and nominal incomes change, a higher nutritional intake or an increase in commodity consumption of the poor can be associated with higher poverty gaps and a higher poverty index of the society. A positive relationship of this kind is quite counter-intuitive in the context of poverty measurement. This is caused by the adjustment of the poverty line and/or incomes of one situation by the prices of the other for the purpose of comparison.

  相似文献   
208.
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   
209.
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   
210.
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