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   130篇
  免费   7篇
财政金融   20篇
工业经济   13篇
计划管理   28篇
经济学   29篇
综合类   3篇
运输经济   3篇
旅游经济   1篇
贸易经济   26篇
农业经济   9篇
经济概况   5篇
  2022年   1篇
  2021年   1篇
  2020年   4篇
  2019年   2篇
  2018年   1篇
  2017年   9篇
  2016年   5篇
  2015年   2篇
  2014年   2篇
  2013年   27篇
  2012年   7篇
  2011年   6篇
  2010年   7篇
  2009年   5篇
  2008年   7篇
  2007年   4篇
  2006年   3篇
  2005年   1篇
  2004年   4篇
  2003年   4篇
  2001年   6篇
  2000年   3篇
  1999年   1篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1995年   2篇
  1993年   3篇
  1992年   1篇
  1991年   3篇
  1990年   1篇
  1987年   1篇
  1985年   1篇
  1983年   1篇
  1981年   1篇
  1980年   1篇
  1979年   3篇
  1978年   1篇
排序方式: 共有137条查询结果,搜索用时 0 毫秒
71.
Meta‐regression analysis (MRA) can provide objective and comprehensive summaries of economics research. Their use has grown rapidly over the last few decades. To improve transparency and to raise the quality of MRA, the meta‐analysis of economics research‐network (MAER‐Net) has created the below reporting guidelines. Future meta‐analyses in economics will be expected to follow these guidelines or give valid reasons why a meta‐analysis must deviate from them.  相似文献   
72.
This paper examine the welfare and resource allocation implications of the U.S. dairy quotas. A computable general equilibrium model detailing five dairy sectors and nine aggregate sectors is calibrated to a 1989 benchmark of the U.S economy. The model is used to simulate the removal of the U.S.dairy quotas both the with and without a first-best subsidy to maintain a dairy farm output objective. Welfare, production, trade, and employment results are provided. The welfare cost of the U.S dairy quotas ranges from $0.7 to $1.0 billion. The first-best subsidy ranges from $2.0 to $2.3 billion or approximately $1.4 million per full-time equivalent job maintained in the dairy farm sector [F13, Q17]  相似文献   
73.
This article derives optimal hedging demands for futures contracts from an investor who cannot freely trade his portfolio of primitive assets in the context of either a CARA or a logarithmic utility function. Existing futures contracts are not numerous enough to complete the market. In addition, in the case of CARA, the nonnegativity constraint on wealth is binding, and the optimal hedging demands are not identical to those that would be derived if the constraint were ignored. Fictitiously completing the market, we can characterize the optimal hedging demands for futures contracts. Closed-form solutions exist in the logarithmic case but not in the CARA case, since then a put (insurance) written on his wealth is implicitly bought by the investor. Although solutions are formally similar to those that obtain under complete markets, incompleteness leads in fact to second-best optima.  相似文献   
74.
In this article, we re-examine the relationship between group-based profit sharing and productivity. Our meta-regression analysis of 355 estimates from 56 studies controls for publication selection and misspecification biases and investigates the impact of firm-level unionisation. Profit sharing is positively related to productivity on average, with a stronger relationship where there is higher unionisation. The positive effect of profit sharing on productivity is larger in cooperative firms and in transition economies. Separate meta-analysis of interactions suggests that profit sharing works better in combination with capital investment and employee participation in decisions.  相似文献   
75.
In this paper, we estimate two empirical models using a pooled, cross-section sample of international pharmaceutical firms for the period 1987 to 1989. The first model tests the relationship between R&D productivity and a vector of firm-specific characteristics. The second model tests the determinants of global market share. The empirical analysis reveals three findings. First, we find evidence that there are diminishing returns in the pharmaceutical R&D process. Second, we find that firm size has a positive effect on average R&D productivity and a positive impact on the marginal R&D productivity for plausible R&D staff sizes. And third, we find evidence that R&D productivity and the number of sales employees have a positive effect on the firm's global market share.The views presented in this paper reflect those of the authors and do not necessarily reflect the views of the U.S. International Trade Commission or any of its individual commissioners. We thank William Comanor, Daniel Gropper, Daniel Hamermesh, Susan Pozo, Paul Thistle, and Mark Wheeler for their comments and suggestions on an earlier draft of this paper. We assume all responsibility for any errors contained herein.  相似文献   
76.
77.
In this paper, we analyze competition among jurisdictions to attract foreign capital through low taxes and public inputs that enhance firms' productivity. The competing jurisdictions are different in size and mobility of capital is costly. We find that for moderate mobility costs, small economies can attract foreign capital by supplying higher levels of public goods than larger jurisdictions, without practicing tax undercutting. The classical result that small jurisdictions are attractive because they engage in tax dumping is recovered only for high mobility costs of capital.  相似文献   
78.
79.
Book reviews     
New technologies and emergent risks pose special problems for risk governance and regulation. This paper outlines some of the uncertainties about the hazards of hydrogen energy and examines qualitative evidence from recent deliberative Citizens’ Panels in England and Wales about hydrogen energy technologies. It is shown that laypeople express ambivalent and contradictory views about, and critical trust in, experts’ views about hydrogen. The findings are discussed in relation to the International Risk Governance Council framework for emergent risks characterised by ambiguity, complexity and uncertainty.  相似文献   
80.
Although 50 years of scientific work has been invested in building retrospective economic time series, their reliability is still debated, a good example being the two competing nineteenth century French GNP series. Instead of trying to bring up some new details to gauge their respective accuracy, we propose a different route, i.e. testing the intrinsic features of these two series, in absolute terms first, then by benchmarking them to a non-retrospective time series. In order to do that, we rely on new mathematical tools—wavelet spectrum analysis—developed in signal processing. This leads to a new approach, which separates the accuracy of a series between amplitude and time variations, and brings nuanced conclusions as to which of the two series tested is the best: indeed, since a trade-off is almost inescapable between the two criterions of accuracy, the statistical quality of one retrospective time series tends to linger either on one side (amplitude level) or the other (time variations). Our study also shows that variance distribution along the time axis is a good proxy for complex retrospective series accuracy.
Bernard CazellesEmail:
  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