More women work in retail, so comparing one to one jobs is not appropriate. Factor in danger pay, seasonailty, less job security and less transferably and the 'wage' disparity drops off. Do I have a number? No because no one is wiling to do a study thay address the deeply flawed methodolgical isssues. Also, none-wage earn time is not even factored in, only wage earning time! Its just a red herring that is used as a false standard-bearer.