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11.
Understanding the Large Negative Impact of Oil Shocks 总被引:1,自引:0,他引:1
This paper offers a plausible explanation for the close link between oil prices and aggregate macroeconomic performance in the 1970s. Although this link has been well documented in the empirical literature, standard economic models are not able to replicate this link when actual oil prices are used to simulate the models. In particular, standard models cannot explain the depth of the recession in 1974–75 and the strong revival in 1976–78 based on the oil price movements in that period. This paper argues that a missing multiplier-accelerator mechanism from standard models may hold the key. 相似文献
12.
指出规格仪器是油品测试方法标准化的基础,总结了油品测试用规格仪器国产化的过程,并对今后的发展方向加以分析。 相似文献
13.
介绍了重油悬浮床加氢裂化工艺的最新发展,对国内新开发的悬浮床加氢裂化工艺特点作了介绍。并将悬浮床加氢和三种重油轻质化工艺——固定床加氢、延迟焦化、重油催化裂化在技术经济上作了分析对比。在原油品质越来越差的今天,针对劣质重油而开发的的悬浮床加氢裂化工艺具有非常广阔的应用前景。 相似文献
14.
Bilodeau Daniel Crémieux Pierre-Yves Jaumard Brigitte Ouellette Pierre Vovor Tsévi 《Journal of Productivity Analysis》2004,21(2):183-199
This research proposes an approach to measure hospital performance based on a generalization of Banker and Morey (1986) and Førsund (1996). This approach considers quasi-fixed inputs explicitly, calculates their implicit cost, and quantifies returns to scale. The performance measure is decomposed into allocative and technical inefficiencies. Based on a very complete data set of Québec hospitals, we find that significant inefficiencies of up to 17% ($700 CAN million) could have been saved through improved performance. Postestimation analyses that include qualitative measures of care suggest that differences in performance are attributable to differences in management or unobservable quality of care rather than patient case mix. 相似文献
15.
我国成品油定价机制经历了一个漫长的改革历程,从计划经济下的单一价格发展成为目前的逐渐向国际油价靠拢。文中阐述了每个阶段的特征和影响,并对现行成品油定价机制的特点和不足及未来的改革方向作出了分析。 相似文献
16.
介绍、比较了世界各国对能源课税,保护环境、节约能源的情况,分析了近年来发达国家能源税制改革的新趋势。指出随着我国能源消费的剧增和对进口能源的依赖加重,节能和环保方面的税收政策应受到普遍重视,应借鉴国外经验,完善我国的能源税制。 相似文献
17.
在对国内不同类型企业经济效益研究现状评价的基础上,采用因素分析法,运用SPSS软件分析,对我国五大类企业在过去10年间的经济效益情况进行了实证研究,并得出了有关结论. 相似文献
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Recent empirical work suggests a predictive relationship between stock returns and output growth. We employ quarterly data from a panel of 27 countries to test whether stock returns as useful in predicting growth. Unlike previous research, our approach allows for the possible non-linear effect of recessions on the growth-return relationship. There is strong evidence to suggest that a linear model would be misspecified and provide potentially misleading inference. Using a switching regression approach, we find evidence that returns are most useful in predicting growth when the economy is in recession.First version received: November 2002/Final version received: April 2003This paper benefited greatly from discussions with Kalvinder Shields, Mark Harris, Pete Summers, and Vance Martin. Two anonymous referees provided useful comments on an earlier version of the paper for which we are grateful. The usual disclaimer applies to any errors and omissions. Funding from The University of Melbourne greatly assisted in the completion of this paper. 相似文献
20.
Wayne?K.?TalleyEmail author Di?Jin Hauke?Kite-Powell 《Environmental and Resource Economics》2005,30(1):93-114
Although oil spills from tanker accidents receive the most publicity, most vessel spills are not the result of accidents but of oil transfer activities. We investigate determinants of the size of vessel oil transfer spills as well as the effectiveness of Coast Guard enforcement activities in reducing their size. Vessel out-of-water and in-water oil transfer spillage functions are estimated utilizing tobit regression and detailed data on individual vessel oil transfer spills as well as Coast Guard safety/environmental enforcement activity data for the 1991–1995 period. Our estimation results suggest that Coast Guard hull but not machinery inspections are effective in reducing both out-of-water and in-water spills; patrols by air, but not by boat, are effective in reducing out-of-water spills; but neither is effective in reducing in-water spills. The results also show that the type of vessel (oil- and non-oil-cargo), vessel characteristics, vessel operations, weather/visibility conditions, and waterway type are determinants of post OPA-90 vessel oil transfer spills. 相似文献