Preventing Highway Crashes by Raising The Legal Minimum Age for Drinking: An Empirical Confirmation

In recent years there has been increased interest in reducing the massive social costs due to alcohol-related motor vehicle crashes. Raising the legal minimum age for purchase and consumption of alcohol beverages has been proposed as one way to reduce alcohol-related crashes among young drivers. Currently, many states are raising the legal age, in contrast to the trend towards lower legal drinking ages in the early 1970s. Recent studies of the effects of raising the drinking age are reviewed, and results from a controlled multiple time-series evaluation of the experience in Michigan are presented. Significant 11 to 28% reductions in alcohol-related crash involvements are shown to be attributable to the raised drinking age in Michigan. Suggestions for further research and discussion of policy implications are included.

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