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   31335篇
  免费   461篇
财政金融   5440篇
工业经济   2126篇
计划管理   5126篇
经济学   7106篇
综合类   636篇
运输经济   124篇
旅游经济   297篇
贸易经济   6981篇
农业经济   732篇
经济概况   2605篇
信息产业经济   46篇
邮电经济   577篇
  2023年   80篇
  2021年   89篇
  2020年   198篇
  2019年   254篇
  2018年   2520篇
  2017年   2339篇
  2016年   1487篇
  2015年   315篇
  2014年   418篇
  2013年   2006篇
  2012年   834篇
  2011年   2434篇
  2010年   2194篇
  2009年   1986篇
  2008年   1947篇
  2007年   2270篇
  2006年   540篇
  2005年   814篇
  2004年   858篇
  2003年   977篇
  2002年   665篇
  2001年   421篇
  2000年   381篇
  1999年   340篇
  1998年   350篇
  1997年   299篇
  1996年   300篇
  1995年   233篇
  1994年   221篇
  1993年   244篇
  1992年   228篇
  1991年   234篇
  1990年   180篇
  1989年   148篇
  1988年   151篇
  1987年   143篇
  1986年   178篇
  1985年   246篇
  1984年   250篇
  1983年   202篇
  1982年   206篇
  1981年   198篇
  1980年   198篇
  1979年   188篇
  1978年   135篇
  1977年   128篇
  1976年   122篇
  1975年   92篇
  1974年   123篇
  1973年   71篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
The paper argues that although considerations such as industry consolidation, the role of lending and the effects of technology are still important in shaping the future of investment banking, sustainable competitive advantage necessitates that emphasis is also placed on thought leadership. This entails quite a radical change in terms of the way in which the industry approaches the problem of competition and requires emphasis on value creation for all the constituent parts of the industry: corporations, investors, the banks themselves and research departments. Accordingly, the paper provides a rationale for this change and provides inter alia a range of examples to illustrate how thought leadership could lead to a fundamental change in the future of the investment banking industry.  相似文献   
52.
Empirical analysis of household expenditure behaviour has traditionally ignored the issue of resource allocation between household members, assuming that they have identical or unitary preferences. This paper relaxes that assumption, develops a household sharing rule and proposes intra-household demand systems that are able to identify differences in the preferences of members from conventional data. The resulting price and expenditure elasticities are used to demonstrate that collective demand models suggest different directions for commodity tax reforms to those implied by the traditional unitary model.  相似文献   
53.
A play-the-winner-type urn design with reduced variability   总被引:1,自引:0,他引:1  
We propose a new adaptive allocation rule, the drop-the-loser, that randomizes subjects in the course of a trial comparing treatments with dichotomous outcomes. The rule tends to assign more patients to better treatments with the same limiting proportion as the randomized play-the-winner rule. The new design has significantly less variable allocation proportion than the randomized play-the-winner rule. Decrease in variability translates into a gain in statistical power. For some values of success probabilities the drop-the-loser rule has a double advantage over conventional equal allocation in that it has better power and assigns more subjects to the better treatment. Acknowledgments. I thank Stephen Durham, the associate editor, and the referees for their helpful suggestions.  相似文献   
54.
55.
Household surveys provide data that is used for identifying and measuring the poverty status of households and individuals. However, carrying out such surveys is expensive, especially in poor developing countries. Thus it is important to make maximum use of the available survey data in developing countries, especially in sub‐Saharan Africa, where such data are expensive to collect and analyse. This paper develops a simple method for using poverty indices derived from survey data for a given year, to predict poverty rates for subsequent periods without having to conduct a new household survey. We illustrate the workings of the method with data from Kenyan household surveys for 1994 and 1997.  相似文献   
56.
Political pressure exists for the bus industry to be brought under local authority control by means of 'Quality Contracts.'These would take away from management the freedom for marketing, and especially for marketing by price, that was returned to them by the 'deregulation' of 1985. The proposed franchises would return the industry to the 'bad old days' and prevent its continued improvement through market forces from taking place. The Department of Transport considered the idea of franchises in 1985, but concluded that it would merely lead to monopoly power.  相似文献   
57.
58.
Previous work shows that establishments with higher proportions of women are more likely to use piece rates but that individual women are less likely to receive performance pay. We present a model in which lower expected tenure and labor force attachment are positively associated with piece rates but are negatively associated with other forms of performance pay. Analysis of the National Longitudinal Survey of Youth (NLSY) confirms that women are more likely to be paid piece rates and simultaneously less likely to be paid commissions and bonuses.  相似文献   
59.
60.
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