Womanshare is a highly successful time-exchange system that has operated in New York since 1991. As with Time Collars, credits cannot be exchanged and members work for each other on an hour-to-hour basis in order to value "the resources of each individual...independantly of the prevailing economy". Membership, which costs $50 a year, is limited to eighty women to foster group cohesion; the result is a long waiting list. "Having just women [is] easier", Jane Wilson, one of the founders, comments. She says that men tend to want to take over and to keep an exact account of trades. The group has a strong social side and potluck meetings are held every month in someone's home. Members are required to attend at least two a year and also to do at least six hours' work for other members each quarter. The wide variety of skills and services available within the group is publisized in a directory that is revised every three months.