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   594篇
  免费   26篇
财政金融   75篇
工业经济   25篇
计划管理   124篇
经济学   249篇
综合类   2篇
运输经济   6篇
旅游经济   2篇
贸易经济   85篇
农业经济   15篇
经济概况   37篇
  2023年   14篇
  2022年   5篇
  2021年   19篇
  2020年   35篇
  2019年   36篇
  2018年   34篇
  2017年   28篇
  2016年   45篇
  2015年   19篇
  2014年   36篇
  2013年   69篇
  2012年   41篇
  2011年   31篇
  2010年   22篇
  2009年   34篇
  2008年   27篇
  2007年   25篇
  2006年   9篇
  2005年   11篇
  2004年   11篇
  2003年   5篇
  2002年   8篇
  2001年   4篇
  2000年   6篇
  1999年   4篇
  1998年   4篇
  1997年   1篇
  1996年   3篇
  1995年   4篇
  1994年   1篇
  1993年   4篇
  1992年   2篇
  1991年   2篇
  1990年   4篇
  1989年   2篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1977年   1篇
  1948年   1篇
  1942年   1篇
  1941年   1篇
排序方式: 共有620条查询结果,搜索用时 0 毫秒
491.
A large number of studies (DeYoung et al., 2009) analyze merger outcomes in the financial industry, while other forms of business cooperation are still poorly investigated. Our paper examines results of strategic alliances and joint ventures in European and US banking over the period 1999–2009. First, we estimate abnormal returns around the deal announcement date and then these are regressed on a large set of explanatory variables. We show that joint ventures create shareholder value when involving non-banking financial partners and allowing banks to expand abroad, while international strategic alliances tend to destroy shareholder value.  相似文献   
492.
In this paper, we discuss in a general framework the design-based estimation of population parameters when sensitive data are collected by randomized response techniques. We show in close detail the procedure for estimating the distribution function of a sensitive quantitative variable and how to estimate simultaneously the population prevalence of individuals bearing a stigmatizing attribute and the distribution function for the members belonging to the hidden group. The randomized response devices by Greenberg et al. (J Am Stat Assoc 66:243–250, 1971), Franklin (Commun Stat Theory Methods 18:489–505, 1989), and Singh et al. (Aust NZ J Stat 40:291–297 1998) are here considered as data-gathering tools.  相似文献   
493.
494.
A risk‐based inspection system might improve the efficiency of the organic farming certification system and ultimately provide a basis for increased competitiveness of this sector. This requires the definition of an effective inspection procedure that allows statistical evaluation of critical risk factors for noncompliance. In this article, we present a study based on data from selected control bodies in five European countries that is aimed at determining the feasibility of risk‐based inspections in the organic sector according to the data that are currently routinely recorded. Bayesian networks are used for identification of the factors that can affect the risk of noncompliance. The results show that previous/concurrent noncompliant behavior explains most of the risk, and that the risk increases with farm size and the complexity of their operations. The data currently recorded by control bodies appear to be insufficient to establish an effective risk‐based approach to these inspections.  相似文献   
495.
496.
Intereconomics - In 2019, over 96% of EU27 oil needs, nearly 90% of natural gas and over 43% of solid fuels were met by net imports, with the largest share coming from Russia (35% of oil, 40% of...  相似文献   
497.
Alcidi  Cinzia  Corti  Francesco  Gros  Daniel 《Intereconomics》2022,57(1):26-32
Intereconomics - The idea of a golden rule has recently been relaunched in the framework of the debate on the European Green Deal.  相似文献   
498.
This paper aims to evaluate the role played by different sources of financing when analyzing firms' attitudes towards innovating. The empirical investigation is based on a large sample of European small and medium-sized enterprises (SMEs) observed over the period 2012–2017. Different measures of finance and several robustness checks are used to select a well-behaved probit model. The results show that the probability to innovate increases when firms use internal financing and grants. The same applies when funds come from family and friends, while no conclusive evidence is found for bank loans. Recommendations for public policy to encourage firm-tailored policies to promote investment in intangibles allow firms to benefit from innovation activities. European SMEs will also benefit from capital market developments and the advancement of new financial tools devoted to supporting innovation.  相似文献   
499.
The aim of this study was to evaluate the combined influence of several lifestyle, health and housing factors in the occurrence of home injuries (HIs) among the elderly. The subjects were recruited from 10 hospitals in Rome, Italy. This study is a paired case-control study. Cases included subjects, aged 65-85 years, who visited the Emergency Department for an HI and were subsequently hospitalised (15 September 2004-30 June 2005). Controls were the subjects of the same gender, age (±3 years) and area of residence of cases. A conditional logistic regression model was used for analysing the variables obtained. In this study, we enrolled 107 hospitalised cases. It was found that the living room was the place where 33% of the accidents occurred. Eighty-seven per cent of the accidents were falls, and 33% of the accidents were the immediate consequence of sudden malaise. One-half of the cases reported one or more leg fractures. The variables that were independently associated with HI were poor household illumination, poor emotional status, regular physical activities and housekeeping activities. We conclude that this study shows the areas of intervention to target HI prevention activities.  相似文献   
500.
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