关键词: 递增阶梯电价 , 再分配效应 , 效率损失 , 二次近乎理想需求函数

Abstract: This paper empirically estimates the cost of efficiency based on theoretical model, which embodies some characteristics and structure of efficiency cost. The total efficiency cost is decomposed into two subcategories. Using microdata on household income and electricity consumption of Hangzhou residents, and counterfactual scenarios, we have estimated the efficiency costs in family and societys perspectives, respectively. The result shows that the IBP does have distinctive income redistribution effects between family groups with different incomes, with lowincome family obtaining certain welfare benefits, and high earners losing welfare more than middleincome household. With the deepening implementation of IBP, the total efficiency cost is declining, and redistribution effect is smaller, but adding up the timeofuse pricing can hinder the trend. This paper establishes the foundation for systematically improving and assessing nonlinear pricing policies.

Key words: increasing block tariff , redistribution effect , efficiency loss , QUAIDS