Estimating the Effects of Drunk Driving Policy in Taiwan

Autor: Ke-Hao Chang, 張可澔
Rok vydání: 2017
Druh dokumentu: 學位論文 ; thesis
Popis: 105
In Taiwan, there was a major law reform in June 2013 that introduced criminal charge and increased fine for Driving under the influence (DUI) offenders, combined with a short period of intensified sobriety checkpoints. To this end, we use Traffic Accident Data (which provide comprehensive records of all traffic accidents with any fatalities and injuries) and difference-in-difference method to estimate the effect of law change. Because enforcement is intensified immediately after the implementation of the law change, the result will includes penalty effect and enforcement effect. To deal with this issue, we estimate the effect of intensive sobriety checkpoint operation running from June to July 2012. The result shows that both law change and intensified sobriety checkpoints significantly decrease the number of nighttime DUI fatalities and injuries, and these effects lasted at least three months. In contrast to the nighttime, the number of daytime DUI fatalities and injuries are remain unchanged. Additionally, the penalty effect of the 2013 law change is greater than 12%. On the other hand, we found that the spillover effect doesn’t exit by observing the non-DUI fatalities and injuries. Last of all, we replace the dependent variable with DUI driver’s age, degrees of heavy episodic drinking, average passengers and daily crime by applying the same DD estimation. All of them are statistical insignificance.
Databáze: Networked Digital Library of Theses & Dissertations