Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/235579
Authors: 
Bueno, Matheus
Valente, Marica
Year of Publication: 
2019
Citation: 
[Journal:] Journal of Environmental Economics and Management [ISSN:] 0095-0696 [Volume:] 96 [Pages:] 274-285
Abstract: 
To internalize pollution externalities into household waste generation, Unit Pricing Systems (UPS) have been adopted worldwide. This paper evaluates the causal effects of a UPS on the disposal of municipal solid waste in Trento, Italy. Using a unique panel dataset of monthly waste generation in Italian municipalities, we employ the synthetic control method, which allows us to account for possible time-varying effects of unobservables. Our results show that the policy was effective, with a significant decrease of the priced waste stream, unsorted waste, by 37.5%. This effect seems to be largely driven by behavioral changes towards waste avoidance (−8.6%) and possibly by a smaller increase in recycling (+6.1%). By comparing these results to those obtained by a difference-in-differences approach, we show that failing to account for time-varying effects of unobservables may lead to a mismeasurement of policy effects.
Subjects: 
Waste generation
Unit pricing
Synthetic controls
Policy endogeneity
Selection on unobservables
Published Version’s DOI: 
Creative Commons License: 
https://creativecommons.org/licenses/by-nc-nd/4.0/
Document Type: 
Article
Document Version: 
Accepted Version (Postprint)

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