It is a basic national policy of China and the most important problem in the current development process to control pollution and protect environment.Since environmental and ecological management has strong externalit...It is a basic national policy of China and the most important problem in the current development process to control pollution and protect environment.Since environmental and ecological management has strong externality,there is little room for the private sector to play,and government governance becomes the most important means.To rationally assess government effectiveness in ecological management and clarify the main factors affecting the effective governance,Zhengzhou City is taken as research object.By referring to advanced experience of policy evaluation at home and abroad,two level-one indexes(ecological effect and economic effect)and eight level-two indexes(days of good air,concentrations of main air pollutants,energy consumption of per unit GDP,total energy consumption,per capita GDP,energy consumption of heavy industry,added value of industries above designated size,and annual fixed asset investment)are constructed to evaluate effectiveness of air pollution control policy in Zhengzhou City.Moreover,the factors affecting effectiveness of air pollution control policy in Zhengzhou City are analyzed.Finally,corresponding suggestions are proposed based on these factors:perfecting laws and regulations of air pollution control in Zhengzhou City,establishing accountability mechanism and cross regional governance system,adjusting industry and energy structure,valuing environmental technology and social participation,and improving government and people's awareness of environmental protection.展开更多
为准确评价区域海事事故治理效果,通过构建动态综合评价模型,为水上交通安全规划提供决策依据。首先,从事故的绝对指标与相对指标角度出发,建立包含8个指标的区域海事事故治理效果评价指标体系。其次,使用博弈赋权法对熵权法所得权重和...为准确评价区域海事事故治理效果,通过构建动态综合评价模型,为水上交通安全规划提供决策依据。首先,从事故的绝对指标与相对指标角度出发,建立包含8个指标的区域海事事故治理效果评价指标体系。其次,使用博弈赋权法对熵权法所得权重和指标相关性权重确定法(Criteria Importance Through Intercriteria Correlation, CRITIC)所得权重进行组合,以确定各时段评价指标组合权重,并采用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution, TOPSIS)对各地区海事事故治理效果进行各时段静态综合评价。再次,通过混合时序算子集结各时段静态综合评价值,求得各地区海事事故治理效果的动态综合评价值,进而判断各地区海事事故的治理效果。最后,运用所建评价模型对2017—2021年上海、浙江、广东和山东4个地区海事事故治理效果进行动态综合评价。研究结果显示:与单一赋权TOPSIS法相比,博弈赋权-TOPSIS法所得静态综合评价结果更为合理可靠;与单一时序算子相比,混合时序算子所得动态综合评价结果更为合理可靠;随着海事事故治理策略和治理强度不同,上海和广东地区海事事故治理效果呈上升趋势,而浙江和山东地区海事事故治理效果呈下降趋势;广东地区海事事故治理效果稳定性最强,而浙江地区海事事故治理效果稳定性最弱;上海地区海事事故治理效果最好,而浙江地区海事事故治理效果最差。展开更多
文摘It is a basic national policy of China and the most important problem in the current development process to control pollution and protect environment.Since environmental and ecological management has strong externality,there is little room for the private sector to play,and government governance becomes the most important means.To rationally assess government effectiveness in ecological management and clarify the main factors affecting the effective governance,Zhengzhou City is taken as research object.By referring to advanced experience of policy evaluation at home and abroad,two level-one indexes(ecological effect and economic effect)and eight level-two indexes(days of good air,concentrations of main air pollutants,energy consumption of per unit GDP,total energy consumption,per capita GDP,energy consumption of heavy industry,added value of industries above designated size,and annual fixed asset investment)are constructed to evaluate effectiveness of air pollution control policy in Zhengzhou City.Moreover,the factors affecting effectiveness of air pollution control policy in Zhengzhou City are analyzed.Finally,corresponding suggestions are proposed based on these factors:perfecting laws and regulations of air pollution control in Zhengzhou City,establishing accountability mechanism and cross regional governance system,adjusting industry and energy structure,valuing environmental technology and social participation,and improving government and people's awareness of environmental protection.
文摘为准确评价区域海事事故治理效果,通过构建动态综合评价模型,为水上交通安全规划提供决策依据。首先,从事故的绝对指标与相对指标角度出发,建立包含8个指标的区域海事事故治理效果评价指标体系。其次,使用博弈赋权法对熵权法所得权重和指标相关性权重确定法(Criteria Importance Through Intercriteria Correlation, CRITIC)所得权重进行组合,以确定各时段评价指标组合权重,并采用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution, TOPSIS)对各地区海事事故治理效果进行各时段静态综合评价。再次,通过混合时序算子集结各时段静态综合评价值,求得各地区海事事故治理效果的动态综合评价值,进而判断各地区海事事故的治理效果。最后,运用所建评价模型对2017—2021年上海、浙江、广东和山东4个地区海事事故治理效果进行动态综合评价。研究结果显示:与单一赋权TOPSIS法相比,博弈赋权-TOPSIS法所得静态综合评价结果更为合理可靠;与单一时序算子相比,混合时序算子所得动态综合评价结果更为合理可靠;随着海事事故治理策略和治理强度不同,上海和广东地区海事事故治理效果呈上升趋势,而浙江和山东地区海事事故治理效果呈下降趋势;广东地区海事事故治理效果稳定性最强,而浙江地区海事事故治理效果稳定性最弱;上海地区海事事故治理效果最好,而浙江地区海事事故治理效果最差。