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   15920篇
  免费   408篇
财政金融   3161篇
工业经济   1356篇
计划管理   2668篇
经济学   3348篇
综合类   162篇
运输经济   123篇
旅游经济   277篇
贸易经济   2364篇
农业经济   751篇
经济概况   2114篇
信息产业经济   1篇
邮电经济   3篇
  2021年   106篇
  2020年   179篇
  2019年   236篇
  2018年   345篇
  2017年   323篇
  2016年   304篇
  2015年   205篇
  2014年   349篇
  2013年   1658篇
  2012年   468篇
  2011年   498篇
  2010年   467篇
  2009年   534篇
  2008年   480篇
  2007年   391篇
  2006年   375篇
  2005年   303篇
  2004年   322篇
  2003年   315篇
  2002年   302篇
  2001年   308篇
  2000年   346篇
  1999年   294篇
  1998年   279篇
  1997年   293篇
  1996年   258篇
  1995年   246篇
  1994年   236篇
  1993年   279篇
  1992年   253篇
  1991年   259篇
  1990年   244篇
  1989年   226篇
  1988年   216篇
  1987年   193篇
  1986年   223篇
  1985年   305篇
  1984年   280篇
  1983年   279篇
  1982年   234篇
  1981年   228篇
  1980年   246篇
  1979年   206篇
  1978年   173篇
  1977年   171篇
  1976年   157篇
  1975年   135篇
  1974年   117篇
  1973年   116篇
  1972年   87篇
排序方式: 共有10000条查询结果,搜索用时 236 毫秒
41.
The extra vulnerability of industrializing countries to environmental problems and industrial accidents cannot be understood or solved by a ‘normal’ scientific analysis. Aspects of the social and institutional context must be included, through analyses based on post-normal science. The standard two-dimensional classification of PNS is modified to have axes ‘social ‘and institutional vulnerabilities’ and ‘complexity of technological hazards’. The analysis is mainly applied to the case of the relatively rare accidents with catastrophic potential. In these, the deaths per accident in India, Mexico and Brazil are much greater than in the industrialized countries. This discrepancy arises partly from location of such plants near residential communities for marginalized workers and their families. Other socio-political factors are relevant, as the role of these countries in the global production system, the enforcement of safety and planning laws, quality of housing, and lifestyle of residents. Reducing the vulnerability of industrializing countries will therefore require major social policies and a comprehension of the limits of the normal scientific and economic approaches to such problems.  相似文献   
42.
Much of the discussion about banking and commerce in America has failed to make several crucial distinctions and has not accounted for many arrangements that have promoted the mixing of these activities. We investigate the history of banking and commerce in the United States, looking both at bank control of commercial firms and commercial firms' control of banks. We trace how these controls have changed with shifting definitions of "bank" and changing methods of "control." Despite the regulations prohibiting some arrangements that promote financial control, we find evidence of extensive linkages between banking and commerce in the United States. These linkages usually build on devices that are very close substitutes to the arrangements prohibited by law. Altogether, our findings question the often made claim that traditionally banking in the United States has been separated from commerce. Furthermore, given that research on Japan and Germany has shown that the mixing of banking and commerce matters for a variety of issues, our evidence also raises some questions on similar research in the United States which makes the simplifying assumption that these industries are separated.  相似文献   
43.
Increasingly popular tailored regulation (TR) initiatives like the Environmental Protection Agency's Project XL allow industrial facilities to voluntarily substitute site-specific environmental performance standards for inefficient command-and-control regulations. TR can significantly reduce participants' costs of complying with environmental regulations, but in doing so it can also give these participants a competitive advantage. Here we develop an analytical model to show that TR can have adverse welfare effects when if enables relatively inefficient firms in oligopolistic markets to “steal” market share from more efficient firms, and we characterize the regulatory policies that give rise to such outcomes. We also show that regulators' efforts to diffuse the benefits of site-specific agreements among nonparticipating firms dampen incentives to participate in TR.  相似文献   
44.
This article reports on the latest in a series of international comparisons of management practices and performance outcomes of industries in various countries. Here, it is the service industries in the UK and the US which come under the microscope. Among the companies surveyed, there were more world-class performers in the US than the UK, but also more low performers. The concluding part of the article is diagnostic – the authors also suggest measures which could improve performance.  相似文献   
45.
46.
Rates of Return to Schooling in China   总被引:13,自引:0,他引:13  
This study uses data from a 1988 survey of Chinese individuals to estimate rates of return to schooling in China. The Mincer-type rate of return to schooling was estimated at 4.02 percent in the rural areas and 3.29 percent in the urban areas; these are fairly low estimates compared with similar estimates in other countries. The rate of return to schooling for females was significantly higher than that for males in urban areas. In addition, members of the Communist Party in urban areas had significantly lower returns to schooling compared with non-members.  相似文献   
47.
The Cultural Economy of Cities   总被引:2,自引:0,他引:2  
An increasingly important fraction of contemporary economic activity is devoted to the production of cultural outputs, i.e. goods and services with high levels of aesthetic or semiotic content. This kind of economic activity is especially, and increasingly, associated with a number of large cities scattered over the globe. A conceptual account of this phenomenon is provided on the basis of an exploration of the character of place-specific forms of culture generation and the agglomerative tendencies of many kinds of cultural products industries. The empirical cases of Los Angeles and Paris are briefly discussed. The dynamics of production, distribution and location of major cultural products industries are also examined. The paper ends with a brief allusion to the modalities of spatial differentiation of culture in contemporary capitalism and to a prospective cultural politics.  相似文献   
48.
49.
50.
This paper empirically tests valuation models for the mortgage-backed futures-options contracts that traded on the Chicago Board of Trade (CBOT) from June of 1989 until March of 1992. A simple contingent-claim model is shown to produce call option values on mortgage-backed futures (MBF) contracts that are unbiased estimates of actual futures-options prices. The ability of the MBF contract to hedge positions in current coupon Government National Mortgage Association (GNMA) securities relative to the effectiveness of cross-hedging GNMA positions with T-note and T-bond futures contracts is also examined.  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