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   135667篇
  免费   3848篇
  国内免费   1篇
财政金融   25673篇
工业经济   11556篇
计划管理   21658篇
经济学   29042篇
综合类   1448篇
运输经济   963篇
旅游经济   2496篇
贸易经济   23433篇
农业经济   6101篇
经济概况   16904篇
信息产业经济   7篇
邮电经济   235篇
  2021年   835篇
  2020年   1622篇
  2019年   2376篇
  2018年   2315篇
  2017年   2497篇
  2016年   2674篇
  2015年   2083篇
  2014年   3401篇
  2013年   15310篇
  2012年   4179篇
  2011年   4127篇
  2010年   3694篇
  2009年   4330篇
  2008年   3886篇
  2007年   3220篇
  2006年   3557篇
  2005年   3544篇
  2004年   3106篇
  2003年   2878篇
  2002年   2847篇
  2001年   2616篇
  2000年   2544篇
  1999年   2452篇
  1998年   2270篇
  1997年   2336篇
  1996年   2191篇
  1995年   1989篇
  1994年   2004篇
  1993年   1987篇
  1992年   2033篇
  1991年   1940篇
  1990年   1820篇
  1989年   1684篇
  1988年   1622篇
  1987年   1615篇
  1986年   1705篇
  1985年   2461篇
  1984年   2344篇
  1983年   2141篇
  1982年   1991篇
  1981年   1930篇
  1980年   1902篇
  1979年   1815篇
  1978年   1637篇
  1977年   1624篇
  1976年   1379篇
  1975年   1280篇
  1974年   1189篇
  1973年   1188篇
  1972年   900篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Network neutrality and the nature of competition between network operators   总被引:2,自引:0,他引:2  
The neutral architecture of the Internet is being challenged by various parties, such as network operators providing the connections to end-users, who are interested in gaining control of the information exchanged over the Internet. What are the effects on competition and welfare of such practices? Currently, there exists very little economic theory on network neutrality. This paper provides a preliminary analysis of the type of economic modeling that can address network neutrality, as well as of the type of results that can be expected.  相似文献   
992.
993.
This paper presents an expert assessment of the present state of cooperation of Ukraine and Russia in the innovation sphere, outlines its main stages and analyzes the quality of the process of formation of legislative framework in state regulation of innovation-oriented transformations in the economy of the two countries. A comparative study is made and a quantitative estimate of the level of innovation activities in industrial production and the degree of innovation shifts in the technological structure of manufacturing in Russia and Ukraine is given.  相似文献   
994.
This paper examines the efficiency of commercial banks in Namibia using the standard econometric frontier approach. Although two aspects of efficiency (scale and scope) receive our attention, the emphasis is on the latter which pertains to whether a firm produces as efficiently as it possibly can, given its size. Our results indicate that substantial economies of scale exist in commercial banking in Namibia. This will tend to suggest that commercial banks in Namibia can increase their efficiency by increasing their current scale of operation. The results for scope economies show that the current level of input combination does not make for maximum efficiency as sufficient scope exists for a more efficient combination of inputs. We believe this will reduce operating costs in the industry and stimulate efficiency.  相似文献   
995.
996.
Financial flows between center and region are analyzed on the example of the Republic of Buryatia. Significant changes are shown to have occurred in the interbudgetary relations between the federal center and the region, which are associated with a revised delineation of authorities between different levels of authority. It has been the key factor in changing the sources and volumes of financial flows. The analysis is largely focused on the relations between the region and its municipalities.  相似文献   
997.
The paper considers procedural aspects of land potential estimation when forming tourist and recreation territories allotted for tourist and recreation zones.  相似文献   
998.
Despite the growing significance of performance measurement systems, theoretical evidence suggests that unique and complex characteristics in the public sector prevent performance measures being used for internal managerial purposes. A paucity of empirical studies suggests a need to shift the research agenda to interpretive methods to understand how the measures are used in a public-sector entity. A field study approach employing grounded theory is advocated to connect what is happening in practice with scholarly work.  相似文献   
999.
In this article, I derive expressions for the Morishima elasticities of substitution (MES) for the variable profit function and estimate these elasticities to shed some light on the substitutability between imports, capital services, and labor services. The results reveal that capital services and imports are Morishima substitutes, irrespective of whether the price of capital services or imports changes, and imports and labor services are also Morishima substitutes, irrespective of whether the price of imports or the wage rate changes. Thus, an increase in the price of U.S. imports (through tariffs or duties) will result in substitution (in the Morishima sense) into labor and capital services.  相似文献   
1000.
This paper considers welfare analysis with therandom utility model (RUM) when perceptions ofenvironmental quality differ from objectivemeasures of environmental quality. Environmental quality is assumed to be anexperience good, so that while perceptions ofquality determine choices, ex postutility is determined by objective quality. Given this assumption, I derive a measure ofthe welfare impact of changes in environmentalquality, and I show how this new welfaremeasure differs from the traditional welfaremeasure developed by Hanemann (1982). This newwelfare measure provides an approach tomeasuring the value of information aboutenvironmental quality within the framework ofthe random utility model.  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