论文标题
使用异构因果效应估计的废物定价计划的政策评估
Policy evaluation of waste pricing programs using heterogeneous causal effect estimation
论文作者
论文摘要
在准实验环境中使用机器学习方法，我研究了引入废物价格的异质效果 - 单位价格对家庭无分类废物处置对 - 废物需求，市政成本和污染。我使用一个独特的意大利市政当局，价格差异很大和可观察到，我表明废物需求是非线性的。我发现以低价弹性的持续弹性，以及在政策之前受收入效应和废物习惯驱动的高价弹性的持续弹性。在采用三年后，该政策降低了所有市政当局的废物管理成本和污染，当时价格大大避免了废物。
Using machine learning methods in a quasi-experimental setting, I study the heterogeneous effects of introducing waste prices - unit prices on household unsorted waste disposal on - waste demands, municipal costs and pollution. Using a unique panel of Italian municipalities with large variation in prices and observables, I show that waste demands are nonlinear. I find evidence of constant elasticities at low prices, and increasing elasticities at high prices driven by income effects and waste habits before policy. The policy reduces waste management costs and pollution in all municipalities after three years of adoption, when prices cause significant waste avoidance.
