This article is from the Stand-up Comedy FAQ, by Steven Rosenthal and Steve Silberberg (email@example.com) with numerous contributions by others.
A. The problems I have found most in clubs is that there is a quota of how
many women will get booked because "They're just not popular." The worst
problem is the ability to break that wall of "woman = same old shtick" that
glazes over owners and managers eyes. No man has ever been passed over for
a gig because there was "already another man on the bill".