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   12780篇
  免费   316篇
  国内免费   1篇
财政金融   2416篇
工业经济   1030篇
计划管理   2228篇
经济学   2853篇
综合类   255篇
运输经济   93篇
旅游经济   249篇
贸易经济   2042篇
农业经济   493篇
经济概况   1405篇
信息产业经济   2篇
邮电经济   31篇
  2023年   71篇
  2020年   153篇
  2019年   217篇
  2018年   247篇
  2017年   300篇
  2016年   262篇
  2015年   188篇
  2014年   266篇
  2013年   1258篇
  2012年   371篇
  2011年   387篇
  2010年   363篇
  2009年   410篇
  2008年   406篇
  2007年   348篇
  2006年   298篇
  2005年   256篇
  2004年   284篇
  2003年   289篇
  2002年   241篇
  2001年   276篇
  2000年   296篇
  1999年   247篇
  1998年   247篇
  1997年   276篇
  1996年   237篇
  1995年   249篇
  1994年   216篇
  1993年   204篇
  1992年   231篇
  1991年   234篇
  1990年   195篇
  1989年   185篇
  1988年   150篇
  1987年   151篇
  1986年   158篇
  1985年   229篇
  1984年   192篇
  1983年   201篇
  1982年   189篇
  1981年   194篇
  1980年   171篇
  1979年   187篇
  1978年   158篇
  1977年   137篇
  1976年   142篇
  1975年   118篇
  1974年   114篇
  1973年   98篇
  1972年   65篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
Perceptions of risks from two groups of industrial radiographers, one from Hungary, (n = 45) and from the United Kingdom, (n = 29) were compared by the psychometric method. The comparison was made because both groups were at risk for high doses of ionizing radiation. We found the groups had similar demographic profiles but poor socio-economic conditions of Hungarians were associated with higher levels of emotional distress. Correlation HU-UK for personal and general risks were at a significant level for topics that included lifestyle and radiation risks. Perceptions of risks from radiation were small except for large personal risk from East European nuclear power plants. Knowledge of radiation risk intranationally was correlated positively with personal risk for UK radiographers and negatively for Hungarians. However, average overall risk perceptions from the same topic list for all radiographers did not differ significantly from a group (n = 1461) of UK citizens, though radiographer's risks from radiation were considerably greater. As a new lifesaving intervention it was proposed that radiation risk reduction could be achieved by genetic testing.  相似文献   
112.
We use historical publications and micro data from tax returns to construct internationally comparable estimates of the development in income inequality in Denmark over the last 140 years. The study shows that income inequality and top income shares have declined during several distinct phases in between periods of stability. Furthermore, the quality of the Danish data allows us to analyse not only the development in top income shares but also broader inequality measures such as the Gini coefficient. These analyses show that top income shares are a good proxy for the underlying development in inequality.  相似文献   
113.
114.
Financial primitives are introduced to define acceptable loss exposures when demands and supplies are defined on differing event spaces. Acceptable loss exposures are modeled by a convex cone of random variables containing the nonnegative random variables. The resulting financial equilibrium defines in general a two price economy. Analytical procedures for identifying the two prices are described. The size of the two price economy is fundamentally determined by the financial system that determines the size of the cone of acceptable losses. There are implications for accounting and risk management as liabilities would typically be valued at ask while assets are valued at bid with no data available on bidirectional prices for anything. Marking to market in such financial economies is at best marking to two price economies.  相似文献   
115.
Analysis of firm investment behavior during 1982–1993 shows that the Tax Reform Act of 1986 (TRA 86) Public Law No. 99-514 substantially affects both purchases and leases of depreciable assets. The changes in the regular corporate income tax rules are shown to lower asset acquisition. The effect of the alternative minimum tax (AMT) is found to vary with the debt share in firms’ capital structure and with the frequency of AMT exposure during the life of the assets acquired. On average, TRA86 depresses asset purchases less for firms that are subject to the AMT: AMT somewhat mitigates the negative effects of the regular tax rules.  相似文献   
116.
This paper examines the uses of humour among participants in five bank training programmes in the UK. These programmes, run by the banks themselves, were studied using ethnographic methods and the observations reported here are based upon extensive field notes. The paper examines the ways in which participants deployed humour during these learning events and the role humour played in the management of their relations with their fellow learners and the course instructors. The course instructors' use of humour is also examined. It is argued that humour played a far from trivial role in the programmes studied. On the contrary, humour was vital to their maintenance as viable organizational practices. In conclusion it is suggested that the more systematic study of humour could make an important contribution to the understanding of the social realities of corporate training programmes.  相似文献   
117.
It is often stated that real house prices respond to inflation in ways similar to assets infixed supply, such as gold or antiques. This paper proposes that, instead, house prices are determined primarily by the cost of producing new houses. Thus, inflation affects price mainly through input markets and through expansion in housing starts. This proposition is supported in an examination of annual changes in house prices between 1965 and 1982 in 12 sub regions of the United States  相似文献   
118.
We “extend” standard arguments for greening the product side of the national accounts to the income side of the accounts and turn up an anomaly. For an economy with oil use, no entry for oil income, a supposed primary factor, appears in the income side of the national accounts when the depletion of natural capital is accounted for on the product side of the accounts. We resolve this issue by applying an income definition developed in the theory of national accounting. This, however, leads to another anomaly on the income side of the national accounts.  相似文献   
119.
We construct a measure of the speed with which forecasts issued by sell-side analysts accurately forecast future annual earnings. Following Marshall, we label this measure earnings information flow timeliness (EIFT). This measure avoids the aggregation problem inherent in price-based measures of information efficiency. We document large variation in EIFT across firm-years, and show that EIFT is positively associated with the extent of analyst following, consistent with increased analyst coverage improving the speed with which earnings-related information is recognised. We also find that EIFT is higher for firm-years classified as ‘bad news’ (i.e., where analysts’ forecasts at the start of the financial period exceed the reported outcome). However, when we separately consider instances where analysts appear to forecast non-GAAP (or ‘street’) earnings rather than GAAP earnings, we find that the greater timeliness of bad news is concentrated among observations where analysts forecast non-GAAP earnings, where unusual items are typically excluded. We conclude that the market for accounting information is more efficient for negative operating outcomes than for negative outcomes reflecting unusual items.  相似文献   
120.
Public Investment, Congestion, and Private Capital Accumulation   总被引:8,自引:0,他引:8  
This paper analyses the impact of public investment on the dynamics of private capital formation in an intertemporal optimising market-clearing framework. The key feature characterising the analysis is that the public good is treated as a durable capital good, subject to congestion. We show how in the presence of congestion the effect of government investment on private capital formation involves a tradeoff between the degree of substitution between private and public capital in production and the degree of congestion. Both lump-sum and distortionary tax financing are considered, with this tradeoff being tightened in the latter case  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