Does drinking in college affect your grades?

To some people, the following conclusion should be filed under “Duh.” But even they might appreciate the empirical rigor undertaken by Scott E. Carrell, Mark Hoekstra, and James E. West in a new working paper called “Does Drinking Impair College Performance?

"This paper examines the effect of alcohol consumption on student achievement. To do so, we exploit the discontinuity in drinking at age 21 at a college in which the minimum legal drinking age is strictly enforced. We find that drinking causes significant reductions in academic performance, particularly for the highest-performing students. This suggests that the negative consequences of alcohol consumption extend beyond the narrow segment of the population at risk of more severe, low-frequency, outcomes."

Full story and the link to download the paper here.