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171.
赵会茹  陆昊  张士营  王玉玮 《技术经济》2020,39(10):19-26+53
以应用在电力系统中的电储能系统为研究对象,以外部性理论为基础,构建了计及外部性的储能系统经济性测算模型,并以储能系统接入光伏电站为例,采用贴现现金流分析方法,预估储能投资成本和收益,分别从投资者角度和社会整体效益角度,来研究储能系统应用在可再生能源发电侧的经济性,并进行了盈亏平衡分析。通过盈亏平衡曲线分析了储能盈亏平衡情景,经济性分析结果显示储能系统的外部性收益占年收益比例较大。  相似文献   
172.
电力市场环境下抽水蓄能电站经营模式的探索   总被引:1,自引:1,他引:0  
李培栋  孙薇  孟亚敏 《水利经济》2005,23(4):13-14,25
简述抽水蓄能电站经营模式现状,论述抽水蓄能电站容量效益和电量效益的划分,提出电网公司和若干大机组发电企业的共同租赁模式及其模型表述,对该模式的合理性进行分析,指出:共同租赁的经营模式使电厂和电网在都受益的前提下各承担一部分租赁费,兼顾各方的利益,具有较强的可行性。  相似文献   
173.
Differences in accrued gains and investors’ tax-sensitivity induce variation in a capital gains lock-in effect across mutual funds even for the same stock at the same time. Exploiting this variation, we show this effect influences funds’ governance decisions: higher capital gains decrease the likelihood a fund exits prior to contentious votes and increase the likelihood a fund votes against management. Consistent with tax motivation, these findings are concentrated among funds with tax-sensitive investors. Further, high aggregate capital gains across funds holding a stock predict a higher likelihood management loses a vote and a lower likelihood a contentious vote is proposed.  相似文献   
174.
This study examines the impacts of inventory and financial instability on the basis of the crude oil market. The results show that, first, the basis rises with inventory, and this effect is higher during low inventory regimes. This validates the theory of storage in the crude oil market. Second, the basis rises with financial instability, and this effect is higher during turbulent regimes. These results warn the oil market participants that, to make decisions based on the basis variation, traditionally known as a signal of scarcity or abundance, the underlying cause of the variation has to be considered.  相似文献   
175.
We study how distributive politics affects political budget cycles and voting within a federal country. Our model predicts not only that the president favors politically aligned governors with larger transfers, but also that voters favor gubernatorial candidates aligned with the expected presidential incumbent because larger transfers are expected in the future. These predictions are upheld by the data from Argentinean provinces during the 1984–2014 period. Our findings imply that political alignment can trump the selection effect of voting the most competent candidate. This can help explain in particular coattail effects when gubernatorial and presidential elections are concurrent.  相似文献   
176.
We study the effect of a change in electoral rules on political competition, measured by the number of candidates and their political experience. We explore the effects of a change in legislation, introduced a year before the gubernatorial elections in Peru on the number of parties that participated in these elections. We also investigate how the legislative change affected the political experience of the candidates. Given that the legislative change did not apply to elections for provincial mayors, we use those elections as a control group, in a difference-in-differences design. Our estimates show the number of parties registered increased by a margin of around 2.2 after the legislative change. The change also increased the candidates' years of accumulated political experience, particularly in the subsequent gubernatorial elections.  相似文献   
177.
Poland's economic and political transition, one of the most successful, has depended very heavily on job creation in new firms to replace the jobs lost in the formerly state‐owned enterprises. This paper uses survey and aggregate data from three Polish elections to suggest that these de novo firms, the individuals they employ, and the residents in the local areas where they exist become an important constituency supporting pro‐reform political parties and constraining the actions of parties less sympathetic to the reforms. The creation of this political constituency helps explain how countries can successfully pursue both economic and political reforms. JEL classification: D72, P26.  相似文献   
178.
在简单介绍投票悖论的基础上 ,较系统地阐述了阿马蒂亚·森解决投票悖论问题的对策———价值限制定理 ,并对其进行了较为客观的评价。  相似文献   
179.
作为一种无线通信技术,UWB技术因其自身所具有的高速、低成本和低功耗等优势而成为未来无线定位技术的热点。基于UWB技术的Ubisense7000定位系统是Ubisense公司推出的第一个民用精密实时无线定位系统,其3D定位精度可达到15cm左右。文中简述了UWB技术的基本概念,给出了Ubisense7000定位系统在仓储物流中的应用实例,并预测了UWB技术在仓储物流中的发展趋势。  相似文献   
180.
地震灾害会造成人员伤亡、财产损失、环境和社会功能的破坏。2008年5月,我国四川汶川县发生里氏8.0级大地震,造成了巨大的人员伤亡与财产损失。文中将从本次汶川特大地震灾害出发,探讨我国如何建立一套完善的地震灾害应急物资储备与管理系统,为地震灾害的救援、重建等一系列工作提供有力的帮助。  相似文献   
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