Hot off the press from NBER, I was particularily interested in one of the main conclusions from the abstract:
Results from a rudimentary instrumental variables strategy and accounting for whether sex is immediately preceded by alcohol use suggest that binge drinking directly leads to risky sex. Some binge drinking-induced promiscuity seems to occur among students, especially males, involved in long-term relationships
I could have told you that without doing any econometrics!
Note: I have read nothing but the abstract so can’t comment on the actual econometrics carried out!