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   21573篇
  免费   718篇
  国内免费   30篇
财政金融   3616篇
工业经济   1543篇
计划管理   3988篇
经济学   4868篇
综合类   525篇
运输经济   260篇
旅游经济   395篇
贸易经济   3473篇
农业经济   990篇
经济概况   2654篇
信息产业经济   1篇
邮电经济   8篇
  2023年   151篇
  2022年   127篇
  2021年   242篇
  2020年   347篇
  2019年   453篇
  2018年   633篇
  2017年   691篇
  2016年   600篇
  2015年   436篇
  2014年   669篇
  2013年   2578篇
  2012年   887篇
  2011年   898篇
  2010年   869篇
  2009年   859篇
  2008年   767篇
  2007年   628篇
  2006年   603篇
  2005年   519篇
  2004年   400篇
  2003年   396篇
  2002年   361篇
  2001年   352篇
  2000年   372篇
  1999年   316篇
  1998年   296篇
  1997年   296篇
  1996年   274篇
  1995年   254篇
  1994年   249篇
  1993年   282篇
  1992年   255篇
  1991年   262篇
  1990年   245篇
  1989年   227篇
  1988年   215篇
  1987年   189篇
  1986年   218篇
  1985年   301篇
  1984年   275篇
  1983年   278篇
  1982年   230篇
  1981年   230篇
  1980年   246篇
  1979年   203篇
  1978年   178篇
  1977年   173篇
  1976年   150篇
  1975年   134篇
  1973年   118篇
排序方式: 共有10000条查询结果,搜索用时 484 毫秒
231.
Many public and private organizations are developing and publishing clinical guidelines to assist health care providers and patients in making appropriate medical decisions. Unless clinical guidelines are part of a well-designed managed care program, they have little effect on physician practice styles. This article explores integral components of an effective guideline-based utilization management program. Initial evaluation of this program suggests that, as part of a well-designed utilization management program, clinical guidelines can inform patients and physicians, and create appropriate incentives for effective health care delivery.  相似文献   
232.
233.
234.
Theories of firm growth are reviewed and various models examined. The firm growth and job generation process in the UK over the period 1985–87, is examined empirically, by using the very large data files of the Dun and Bradstreet credit rating organisation. In the analysis, four computer processes were carried out; the sorting and matching of files, the cleaning of the data, the validation of the cleaned data, and the scaling up the results. The final adjusted data were grossed-up to provide an overview of the growth and job generation potential of UK firms. This is compared with past results for the periods 1971–81, and 1982–84. Small firms performed well, providing 48% of all new jobs, although consisting of only 21% of all employment in 1985. The 1000+ employee range provided only 13% of all new jobs over the period, although consisting of 37% of all employment in 1985. An overall trend of positive performance in smaller firms, and negative in larger firms was apparent. The 20–49 employee cohort performed unusually poorly in firm and job creation, against the expected pattern. The effect of takeovers, mergers and rationalisations on employment was examined. As expected, there was negligible restructuring of small firms, but over 5% of employees in the largest 1000+ cohort were involved in some form of reorganisation.In this and the two previous studies for 1971–81 and 1982–84, we found a consistent pattern of small firms as net generators of jobs, and large firms as net losers. This overall net behaviour is essential for the overall stability of the population, and can not be seen in good or bad terms. Bolton in 1971 found that the UK had an unduly small and weak small-firm sector. That trend to concentration is being reversed.This research was supported by the Department of Employment, Small Firms Division.  相似文献   
235.
236.
237.
C. J. Oort 《De Economist》1990,138(4):451-463
Summary Does today's banking scene pose a potential threat to the stability of the international financial system? The article discusses three possible sources of vulnerability of the international banking system: a major bank failure causing a general banking crisis via the extensive interbank linkages; the systemic risks allegedly inherent in certain new (as well as traditional) financial products; and the impact of external events such as debt crises, violent swings in exchange or interest rates, deregulation and recession. The author's conclusion is twofold: systemic risks clearly exist, but the probability of a major banking crisis tends to be greatly exaggerated. Banks not only survived the various crises of the seventies and eighties; they also learned in the process. Capital and reserves have been strengthened, provisions for country risk and for general contingencies have increased, supervision has been tightened and it is exercised on a comprehensive as well as a world-wide consolidated basis (i.e. including all contingent and off-balance liabilities, and all offshore activities). Assuming reasonably intelligent policies on the part of the monetary authorities and adequate international coordination, a general banking crisis can be avoided. Official rescue operations do, however, raise difficult questions of an ethical, political and economic nature.  相似文献   
238.
239.
Life insurance as a charitable gift is an attractive alternative. But first the fund raiser must check out the companies and the different types of policies available.  相似文献   
240.
Is there a case for preferential treatment of the exposed sector in an economy when compliance to an aggregate emissions constraint induced by an international environmental agreement is mandatory? This question is being debated in many countries in the context of the implementation of the Kyoto Protocol. We address the issue in a general equilibrium framework and theoretically cover several market structures, including perfect competition, the large country case and oligopoly. We identify the conditions under which preferential treatment of the exposed sector is not warranted from the point of view of maximizing social welfare. In addition, we demonstrate that in the case of oligopoly, instituting a more stringent environmental policy on the exposed sector might be profit-enhancing for this sector. This finding lends theoretical support to a specific interpretation of the Porter hypothesis.  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