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Fields Changed

Registration

Field Before After
Study Withdrawn No
Intervention Completion Date August 10, 2015
Data Collection Complete Yes
Final Sample Size: Number of Clusters (Unit of Randomization) 8 beach resorts
Was attrition correlated with treatment status? No
Final Sample Size: Total Number of Observations 56,000 beach attenders
Is there a restricted access data set available on request? No
Program Files No
Data Collection Completion Date August 10, 2015
Is data available for public use? No
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Papers

Field Before After
Paper Abstract Cigarette filters, the most commonly littered item worldwide, are one of the main sources of marine pollution. However, reducing cigarette littering is a serious challenge for policymakers and environmental authorities: traditional instruments like bans and fines are generally ineffective. In this article, we evaluate the impact of two interventions aimed at reducing smokers’ littering in public areas, like beaches. We run a field experiment at eight beach resorts in the north east coast of Italy. Resorts were randomly assigned to three groups: in the first, we introduced portable ashtrays to test whether smokers respond to the lower effort costs (time plus inconvenience) by disposing of litter properly. In the second set, we added a social cue. The third group of resorts was used as a control with no intervention. Results suggest that reducing the private costs of a proper disposal through mobile ashtrays significantly affects littering, leading to a reduction of 10–12% in the number of cigarette filters dropped in the sand compared to beaches with no ashtrays. Reinforcing this measure with social prompts does not significantly increase the impact driven by the introduction of mobile ashtrays.
Paper Citation Castaldi, G., Cecere, G., & Zoli, M. (2021). “Smoke on the beach”: on the use of economic vs behavioral policies to reduce environmental pollution by cigarette littering. Economia politica, 38, 1025-1048.
Paper URL https://doi.org/10.1007/s40888-020-00205-5
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