Introducing electoral gender quotas can be considered an appropriate and legitimate measure to increase women’s parliamentary representation (CDL-AD(2002)023rev, I.25; CDLAD(2006)020). In recent years, an impressive number of countries have introduced quota regulations worldwide. There are almost 50 states with legal gender quotas or reserved women seats for national parliament. In many more countries political parties apply, additionally or alternatively, voluntary gender quotas. “The Global Database of Quotas for Women” website provides helpful information on the application of gender quotas in countries all over the world (www.quotaproject.org).