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   1786篇
  免费   100篇
财政金融   227篇
工业经济   65篇
计划管理   326篇
经济学   595篇
综合类   7篇
运输经济   38篇
旅游经济   34篇
贸易经济   420篇
农业经济   75篇
经济概况   99篇
  2023年   18篇
  2022年   19篇
  2021年   27篇
  2020年   48篇
  2019年   80篇
  2018年   121篇
  2017年   126篇
  2016年   100篇
  2015年   49篇
  2014年   82篇
  2013年   264篇
  2012年   109篇
  2011年   125篇
  2010年   101篇
  2009年   74篇
  2008年   78篇
  2007年   56篇
  2006年   61篇
  2005年   57篇
  2004年   33篇
  2003年   32篇
  2002年   38篇
  2001年   18篇
  2000年   12篇
  1999年   13篇
  1998年   24篇
  1997年   11篇
  1996年   11篇
  1995年   3篇
  1994年   5篇
  1993年   7篇
  1992年   4篇
  1991年   11篇
  1990年   4篇
  1989年   4篇
  1988年   4篇
  1987年   3篇
  1986年   4篇
  1985年   6篇
  1984年   5篇
  1983年   4篇
  1981年   3篇
  1980年   4篇
  1978年   4篇
  1977年   5篇
  1974年   3篇
  1972年   2篇
  1970年   2篇
  1964年   2篇
  1854年   1篇
排序方式: 共有1886条查询结果,搜索用时 31 毫秒
81.
82.
We show that a multiple-unit descending-price auction in which the clock is not reset after each sale may be faster and yield more stable prices than an efficient alternative, thus providing sellers a rationale for using it in practice.  相似文献   
83.
In this paper we examine long-run house price convergence across US states using a novel econometric approach advocated by Pesaran (2007) and Pesaran et al. (2009). Our empirical modelling strategy employs a probabilistic test statistic for convergence based on the percentage of unit root rejections among all state house price differentials. Using a sieve bootstrap procedure, we construct confidence intervals and find evidence in favour of convergence. We also conclude that speed of adjustment towards long-run equilibrium is inversely related to distance.  相似文献   
84.
While the biofouler Corbicula fluminea (Müller, 1774) is known to cause great economic losses in North America, studies reporting the problem in Europe are much scarcer. This paper explores the industrial effects of the species in Portugal, the gateway by which the bivalve entered Europe around 30 years ago. National waterworks, major power stations, cement plants, pulp and paper mills and irrigation systems were surveyed. The industrial impacts of the pest were shown to remain relatively mild; irrigation systems are those that seem to be facing more significant economic losses due to infestation. Possible reasons for the apparent discrepancy between this result and the species dispersal in natural ecosystems are discussed, and recommendations on adequate responses to the latent threat are provided. This study may assist the implementation of integrated pest management policies in countries at risk of invasion or recently invaded, and contribute to an understanding of the species’ progression in industrial environments.  相似文献   
85.
In economies subject to uninsurable idiosyncratic risks, competitive equilibrium allocations are constrained inefficient: reallocations of assets support Pareto superior allocations. This is the case even if the asset market for the allocation of aggregate risks is complete.  相似文献   
86.
LebensAufgabe für pflegende Angeh?rige — Die Betreuung und Pflege eines demenziell erkrankten Familienangeh?rigen stellt nahe Bezugspersonen vor gro?e Herausforderungen. Ohne Unterstützungsangebote brechen viele unter der Last des Alltags zusammen. Pflegekr?fte sollten daher die Belastungsgrenzen von Angeh?rigen erkennen und ihnen rechtzeitig professionelle Hilfe anbieten.  相似文献   
87.
88.
<正>Singapore,a nation of merely around 5 million population,invested US$5.657 billion to China in 2010,according to statistics from Ministry of Commerce of P.R....  相似文献   
89.
90.
Agricultural production is subject to risk and the attitudes of producers toward risk will influence input choices insofar as these affect production risk. Risk attitudes in turn may be affected by certain socioeconomic characteristics of producers. Using 2004 survey data from a cross‐section of 130 Spanish rice farms, we estimate risk‐aversion coefficients of farmers and investigate the influence of a series of socioeconomic variables on their risk attitudes. Our results show that farmers exhibit risk‐averse behavior and that risk attitudes are related to a series of socioeconomic characteristics. In particular, the belief that the farm will continue after the producer retires is found to increase the degree of risk aversion, while age is found to have nonlinear effects on risk aversion. Off‐farm income, especially from nonagricultural activities, is found to reduce risk aversion. Neither the educational level of the producer nor the presence of dependents on the household is found to have an effect on risk preferences. Regarding the production technology, we find that land, labor, and fitosanitary products are risk‐reducing inputs, whereas capital, seeds, and fertilizer all increase risk.  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