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   1297篇
  免费   36篇
财政金融   231篇
工业经济   70篇
计划管理   239篇
经济学   254篇
综合类   5篇
运输经济   9篇
旅游经济   17篇
贸易经济   284篇
农业经济   48篇
经济概况   126篇
邮电经济   50篇
  2023年   7篇
  2021年   12篇
  2020年   18篇
  2019年   22篇
  2018年   31篇
  2017年   37篇
  2016年   35篇
  2015年   14篇
  2014年   37篇
  2013年   142篇
  2012年   46篇
  2011年   48篇
  2010年   37篇
  2009年   62篇
  2008年   65篇
  2007年   39篇
  2006年   37篇
  2005年   34篇
  2004年   35篇
  2003年   40篇
  2002年   31篇
  2001年   33篇
  2000年   39篇
  1999年   16篇
  1998年   17篇
  1997年   19篇
  1996年   18篇
  1995年   19篇
  1994年   12篇
  1993年   15篇
  1992年   12篇
  1991年   9篇
  1990年   12篇
  1989年   12篇
  1988年   14篇
  1987年   12篇
  1986年   9篇
  1985年   10篇
  1984年   14篇
  1983年   21篇
  1982年   11篇
  1981年   13篇
  1980年   17篇
  1979年   18篇
  1978年   18篇
  1977年   13篇
  1976年   9篇
  1975年   8篇
  1974年   15篇
  1973年   9篇
排序方式: 共有1333条查询结果,搜索用时 0 毫秒
51.
We experimentally investigate whether individuals can reliably detect cooperators (the nice(r) people) in an anonymous decision environment involving “connected games.” Participants can condition their choices in an asymmetric prisoners’ dilemma and a trust game on past individual (their partner’s donation share to a self-selected charity) and social (whether their partner belongs to a group with high or low average donations) information. Thus, the two measures of niceness are the individual donation share in the donation task, and the cooperativeness of one’s choice in the two games. We find that high donors achieve a higher-than-average expected payoff by cooperating predominantly with other high donors. Group affiliation proved to be irrelevant. Electronic Supplementary Material Supplementary material is available in the online version of this article at . JEL Classification C91, C72, D3  相似文献   
52.
The common prior assumption justifies private beliefs as posterior probabilities when updating a common prior based on individual information. We dispose of the common prior assumption for a homogeneous oligopoly market with uncertain costs and firms entertaining arbitrary priors about other firms’ cost-type. We show that true prior beliefs can not be evolutionarily stable when truly expected profit measures (reproductive) success.  相似文献   
53.
In the study of reliability of the technical systems, records model plays an important role. Suppose that a technical system is subject to shocks, e.g. peaks of voltages or stresses. The successive large shocks may be viewed as realizations of records from a sequence of identically independent voltages. Assume that the lower limit value of the mth record voltage (stress) is v > 0. Under these conditions, we propose a mean residual of records (MRR’s) for the future records. We study several properties of MRR. We show that the proposed MRR uniquely characterizes the distribution function that generated the sequence of records. It is proved that when the model under study has an increasing hazard rate the corresponding MRR is decreasing. We also compare between two record systems based on their MRR’s when these systems are ordered in terms of their hazard rates.  相似文献   
54.
55.
In the reliability studies, k-out-of-n systems play an important role. In this paper, we consider sharp bounds for the mean residual life function of a k-out-of-n system consisting of n identical components with independent lifetimes having a common distribution function F, measured in location and scale units of the residual life random variable X t  = (Xt|X > t). We characterize the probability distributions for which the bounds are attained. We also evaluate the so obtained bounds numerically for various choices of k and n.  相似文献   
56.
We introduce the concept of ‘individual action propensity’ to examine the approach of individuals towards solving situations for which they lack knowledge and/or experience about what to do. We focus on a naturally contrasting pair of responses: ‘thinking before acting’ or ‘acting before thinking’, and associate low action propensity with thinking one's way into understanding how to act, and high action propensity with acting one's way into understanding such situations. We build on regulatory mode theory – with its dimensions of locomotion and assessment and the trade‐off between speed and accuracy – to examine individual characteristics as predictors of individual action propensity. We find that individual action propensity is associated with being a woman, having fewer years of formal education, not relying on help‐seeking behaviours, and having a positive attitude towards spontaneity. Our findings shed light on why individuals take action, or not, and provide implications for research on organizational action propensity.  相似文献   
57.
This article develops a dynamic model to investigate renewable resource markets under different property rights. We find that different property rights regimes in renewable resource markets yield very different equilibria. Under private property rights, the valve point increases with the natural growth rate, productivity, number of firms, and marginal costs. Under common property rights, “the tragedy of the commons” inescapably occurs. This study suggests how to avoid ecological disaster by implementing a set of public policies.  相似文献   
58.
This survey examines the empirical literature on the relationship between public R&D subsidies and private R&D investment over the past five decades. The survey reveals a considerable heterogeneity of empirical results that cannot be explained fully by methodological issues. We aim to provide further explanations of the possible causes of that heterogeneity. In particular, we emphasise a set of issues that, in our view, are critical to understanding the potential effect of public R&D subsidies on private R&D spending. Special attention is paid to the dynamic aspects and composition of firm R&D, the constraints faced by the firm (such as financial constraints), and the amount and source of public subsidies. None of these issues have been investigated in depth. We formulate a set of research assumptions to guide future empirical research in this field.  相似文献   
59.
60.
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