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基于承包商支付意愿的工程渣土资源化利用激励机制研究——以长沙市为例
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作者 易欣 刘沫村 +2 位作者 陆佳惠 沈良峰 邱慧 《中国环境科学》 北大核心 2025年第4期2323-2332,共10页
出于成本考虑,目前承包商工程渣土多采取填埋、倾倒处置方式,如何激励其转向资源化利用是个难题.不同于以往定性研究,基于混合式条件价值评估新方法,以湖南省长沙市585位建筑从业人员的调查数据为样本,通过对承包商支付意愿及影响因素... 出于成本考虑,目前承包商工程渣土多采取填埋、倾倒处置方式,如何激励其转向资源化利用是个难题.不同于以往定性研究,基于混合式条件价值评估新方法,以湖南省长沙市585位建筑从业人员的调查数据为样本,通过对承包商支付意愿及影响因素进行研究,将不明晰的非资源化处置收费价格明确化,然后提出了相应的激励机制.结果表明:承包商的平均支付意愿为73.69元/t,高于目前渣土填埋平均费用20元/t,以及非法倾倒的处罚期望成本16.70~25元/t,建议政府通过调价和征收处置税使渣土消纳费超过73.69元/t,将非法倾倒处罚额从5000元/台提高到15000元/台;工程资源化利用平均处置成本137元/t,再产品平均售价40元/t,加上承包商平均支付意愿仍小于成本.政府可根据差额直接补贴或奖励新技术研发以降低成本,并出台规定扩大再产品用量,通过需求提高再产品市场价格.74.35%受访者愿意支付以支持工程渣土资源化利用,承包商的企业性质、社会压力、环境认知、当前满意度等因素正向影响其支付意愿,受访者的项目经验却对支付意愿负向影响.政府通过加大工程渣土资源化利用宣传的引导规制,提升资源化利用补贴和非法倾倒处罚力度的奖惩规制,也都能有效激励承包商采取资源化利用. 展开更多
关键词 工程渣土资源化利用 承包商支付意愿 支付意愿影响因素 hybrid contingent valuation method
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■ukasiewicz命题逻辑系统中的赋值决定公式问题 被引量:2
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作者 王国俊 李立峰 《陕西师范大学学报(自然科学版)》 CAS CSCD 北大核心 2006年第3期1-8,共8页
为了在经典逻辑学中建立Fuzzy分离规则的推理模式,Zadeh提出了赋值决定公式问题(VDF问题),并已于二值命题逻辑以及Lukasiewicz三值和p+1值命题逻辑中得到解决.文中在更一般的Lukasiewicz命题逻辑系统中建立了VDF问题的求解理论,首先给... 为了在经典逻辑学中建立Fuzzy分离规则的推理模式,Zadeh提出了赋值决定公式问题(VDF问题),并已于二值命题逻辑以及Lukasiewicz三值和p+1值命题逻辑中得到解决.文中在更一般的Lukasiewicz命题逻辑系统中建立了VDF问题的求解理论,首先给出了一般的Lukasiewicz命题逻辑系统中VDF的合理性条件,其次构造性地解决了Ln、La和Lc中的VDF问题. 展开更多
关键词 Fuzzy分离规则 Lukasiewicz命题逻辑系统 赋值决定公式问题 构造性解 MV代数
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An Empirical Research on the Model of the Right in Additional Allocation of Stocks
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作者 CHEN Xi-jun 1, WU Zhen-xiang, ZHOU Hui (16th Department, University of Science and Technology of China, Hefei 230026, China) 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期226-,共1页
How to define the value of the Right in Additional Al location of Stocks (RAAS) acts an important role in stock markets whether or not the shareholders execute the right. Moreover, the valuation defining of RAAS an d ... How to define the value of the Right in Additional Al location of Stocks (RAAS) acts an important role in stock markets whether or not the shareholders execute the right. Moreover, the valuation defining of RAAS an d the exercise price (K) are mutual cause and effect. Based on some literatures on this subject, this paper presents a model valuing the RAAS per-share. With t he opening information in ShenZheng Stock Markets, we make a simulation on the R AAS’s value of shenwuye, which is a shareholding corporation appearing in the ma rket. At last, we have a discussion on the simulation method. 展开更多
关键词 RAAS empirical valuation simulation martingal e-measure
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Evolutionary game analysis of decision-making behavior in new interregional agreements
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作者 Jie Shao Qi Zhong Wei Duan 《Journal of University of Science and Technology of China》 2025年第11期53-68,I0001,I0002,共18页
Economic growth is often accompanied by escalating ecological challenges,making cross-regional collaborative environmental governance a key policy approach.However,practical constraints,such as insufficient governance... Economic growth is often accompanied by escalating ecological challenges,making cross-regional collaborative environmental governance a key policy approach.However,practical constraints,such as insufficient governance capacity,high costs,and a lack of accountability mechanisms,hinder regional cooperation in ecological protection.In response,new ecological compensation agreements have emerged.This study examines the effectiveness of the bidirectional compensation strategy and the impacts of various factors on upstream and downstream decision-making,with upstream–downstream cooperation under China’s newly implemented cross-regional ecological compensation agreements as the entry point.Using evolutionary game theory,a cross-regional collaborative governance model is developed,and numerical simulations are conducted to explore the interaction mechanisms between participants and the factors influencing stable strategies.The findings indicate that,first,strategy stability is primarily associated with upstream regions,with compensation amounts,central government incentives,upstream protection costs,and comprehensive benefits exerting varying degrees of influence on the watershed ecological compensation mechanism.Notably,the downstream region exhibits greater sensitivity to compensation amounts than the upstream region,while forgone opportunity costs and comprehensive ecological benefits are critical drivers of upstream environmental governance.Second,the analysis of the central government’s regulatory mechanism within the tripartite evolutionary game underscores the importance of a centrally led governance model in ensuring the long-term ecological integrity of the watershed and promoting fair interregional cooperation.Third,future policy-making should incorporate regional interests to establish more flexible and scientifically grounded ecological compensation mechanisms,fostering coordinated cross-regional governance and achieving a balance between ecological protection and economic growth. 展开更多
关键词 eco-compensation environmental pollution evolutionary game transboundary watershed management valuation adjustment mechanism
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