Scott Sumner directs us to this passage from Michele Martinez Campbell:

A fascinating new national poll from Quinnipiac University shows that men and women disagree markedly on the question of marijuana legalization. While men surveyed strongly favor legalization by a margin of 59 to 36 percent, women oppose it by a clear majority of 52-44 percent. This 15-point gender gap in support for marijuana legalization –let’s call it the “pot gender gap” — is not quite as large as the 20-point gender gap in support for President Obama in the 2012 presidential election, but it is striking. What’s most interesting, though, is how it confounds the expectations set by the voting gender gap. In voting, women trend more liberal and Democratic, while men trend more conservative and Republican. Yet with the pot gender gap, we see women taking the more conservative, law-and-order approach.