Repealing the state’s ban on happy hours would be economically and socially detrimental and would not substantially protect restaurants from losing business to casinos, says a ­report by alcohol regulators.

Some lawmakers had floated the idea of rolling back the restric­tion as a concession to ­liquor license holders, who have opposed a provision in the 2011 Gaming Act that allows casinos to serve free alcoholic drinks in their gaming areas.