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   3776篇
  免费   175篇
  国内免费   1篇
财政金融   782篇
工业经济   319篇
计划管理   766篇
经济学   801篇
综合类   31篇
运输经济   58篇
旅游经济   43篇
贸易经济   713篇
农业经济   134篇
经济概况   275篇
信息产业经济   1篇
邮电经济   29篇
  2023年   33篇
  2022年   22篇
  2021年   43篇
  2020年   78篇
  2019年   114篇
  2018年   114篇
  2017年   144篇
  2016年   137篇
  2015年   108篇
  2014年   162篇
  2013年   438篇
  2012年   190篇
  2011年   176篇
  2010年   164篇
  2009年   191篇
  2008年   134篇
  2007年   122篇
  2006年   113篇
  2005年   110篇
  2004年   95篇
  2003年   87篇
  2002年   75篇
  2001年   102篇
  2000年   80篇
  1999年   59篇
  1998年   58篇
  1997年   59篇
  1996年   47篇
  1995年   43篇
  1994年   40篇
  1993年   31篇
  1992年   30篇
  1991年   36篇
  1990年   26篇
  1989年   26篇
  1988年   32篇
  1987年   28篇
  1986年   30篇
  1985年   31篇
  1984年   33篇
  1983年   34篇
  1982年   30篇
  1981年   24篇
  1980年   23篇
  1979年   22篇
  1978年   32篇
  1977年   25篇
  1976年   28篇
  1975年   16篇
  1974年   16篇
排序方式: 共有3952条查询结果,搜索用时 15 毫秒
1.
We extend the entrepreneurship literature to include positive psychological capital — an individual or organization's level of psychological resources consisting of hope, optimism, resilience, and confidence — as a salient signal in crowdfunding. We draw from the costless signaling literature to argue that positive psychological capital language usage enhances crowdfunding performance. We examine 1726 crowdfunding campaigns from Kickstarter, finding that entrepreneurs conveying positive psychological capital experience superior fundraising performance. Human capital moderates this relationship while social capital does not, suggesting that costly signals may, at times, enhance the influence of costless signals. Post hoc analyses suggest findings generalize across crowdfunding types, but not to IPOs.  相似文献   
2.
This paper develops a two‐sector model of trade in goods and intermediate tasks that differ in tradability and skill intensity. A skill‐abundant country with high productivity is shown to offshore more unskilled tasks than skilled tasks, without relying on a particular correlation structure between tradability and skill intensity. With putty‐clay technology that allows retraining in the long run, transition from the non‐offshoring to the offshoring equilibrium generates wage and employment effects that switch from negative to positive as tradability declines, with the switches occurring at a higher degree of tradability for skilled tasks. This is consistent with the empirical literature.  相似文献   
3.
4.
This study endeavors to enhance political marketing literature about the impact of lobbying on firm performance. Our sample is composed of 140 U.S. firms and spans the years 2007–2014 to encompass the 2007–2009 recession and the subsequent recovery period. Our findings indicate that lobbying expenses positively contribute to firm performance. Also, government contracts in both ways, dollar amount and number of government contracts, act as mediators between lobbying expenses and firm performance. In addition, organizational slack moderates the relationship between lobbying expenses and government contracts. The managerial implications suggest that lobbying expenses can be leveraged as a potent tool for firm performance. Firms with larger lobbying efforts acquired both, higher dollar amounts and a greater number of government contracts.  相似文献   
5.
Open Economies Review - Building upon a Behavioural Equilibrium Exchange Rate model, estimated at a quarterly frequency since 1999 on a broad sample of 57 countries, this paper assesses both the...  相似文献   
6.
7.
8.
Family income and child outcomes in Canada   总被引:1,自引:0,他引:1  
Abstract.  A positive relationship between income and child outcomes has been observed in data from numerous countries. A key question concerns the extent to which this association represents a causal relationship as opposed to unobserved heterogeneity. We use data from the National Longitudinal Survey of Children and Youth to implement a series of empirical strategies for estimating the existence and size of the effect of income on three measures of cognition. Our results indicate that the effect of income on these outcomes may well be positive, but that it is likely to be smaller than conventional estimates. JEL Classification: I10  相似文献   
9.
A hierarchical model of collusion in local public works is presented. A local authority plans to undertake a project, delegating its construction to a construction firm. Both of them know the project's cost. However, the federal government decides whether to subsidize the project without knowing its cost. Therefore, the local authority and the constructor may agree to misreport their private information, in order to benefit from the allocation of federal grants. We show that different collusive behaviors may emerge. Then, we characterize the optimal federal grant policy. Finally, we investigate when constructing (shutting down) useless (valuable) projects is optimal.  相似文献   
10.
In a Costly State Verification world, an agent who has private information regarding the state of the world must report what state occurred to a principal, who can verify the state at a cost. An agent then has what is called ex post moral hazard: he has an incentive to misreport the true state to extract rents from the principal. Assuming the principal cannot commit to an auditing strategy, the optimal contract is such that: (1) the agent's expected marginal utility when there is an accident (high‐ and low‐loss states) is equal to his marginal utility when there is no accident; (2) the lower loss is undercompensated, while the higher loss is overcompensated; and (3) the welfare of the agent is greater under commitment than under no‐commitment. Result 2 is contrary to the results obtained if the principal can commit to an auditing strategy (higher losses underpaid and lower losses overpaid). The reason is that by increasing the difference between the high and the low indemnity payments, the probability of fraud is reduced.  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