Do Not Trash the Incentive! Monetary Incentives and Waste Sorting
研究了意大利特雷维索省95个市镇1999-2008年的垃圾管理政策，发现按量收费（PAYT）使分类垃圾比例提高17%，上门收集（DtD）提高15.7%，且两者效果相互增强，还存在学习和空间效应。
Abstract In this paper, we examine whether combining non‐monetary and monetary incentives increases municipal solid waste sorting. We empirically investigate this issue, exploiting the exogenous variation in waste management policies experienced during the years 1999–2008 by the 95 municipalities in the district of Treviso (Italy). Using a panel regression analysis, we estimate that pay‐as‐you‐throw (PAYT) incentive schemes increase the sorted‐to‐total waste ratio by 17 percent, and that their effect reinforces that of a door‐to‐door (DtD) collection system, which is equal to 15.7 percent. Moreover, the panel structure of our dataset allows us to find learning and spatial effects associated with both PAYT and DtD.