Do green parties affect local waste management policies?
研究意大利市长是否受绿党支持对当地废物管理的影响，发现绿党联盟执政的城镇回收率显著提高，但效果依赖于对绿党候选人的定义，且并非通过增加预算实现，而是通过实施按需收集和建立回收中心等政策。
We explore whether mayors supported by pro-environmental parties enhance local environmental outcomes compared to their non-environmental counterparts. We study close elections within a regression discontinuity design and find a notable rise in recycling rates in Italian municipalities governed by pro-environmental coalitions. This uptick becomes far less pronounced when adopting broader criteria to define green mayoral candidates. Crucially, the enhanced recycling rates are not realized through augmented budgets for environmental initiatives or waste collection, but rather are primarily attributed to the implementation of local policies, such as on-call waste collection and the establishment of waste collection centers.