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Fields Changed


Field Before After
Status in_development completed
Trial End Date March 31, 2019 November 15, 2019
Last Published November 22, 2017 12:55 PM May 13, 2020 09:04 AM
Intervention Completion Date August 03, 2019
Data Collection Complete Yes
Final Sample Size: Number of Clusters (Unit of Randomization) 78,882 speeding tickets from 72,502 cars.
Final Sample Size (or Number of Clusters) by Treatment Arms 20,399 tickets in the control group; 19,025 in the "Deadline" treatment; 19,012 in the "Penalty" treatment; 20,446 tickets in the "Deadline & Penalty" treatment
Is there a restricted access data set available on request? Yes
Restricted Data Contact [email protected]
Data Collection Completion Date November 15, 2019
Intervention End Date December 01, 2018 August 03, 2019
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Other Primary Investigators

Field Before After
Affiliation Hertie School of Governance Hertie School
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Field Before After
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