In Tibet , polyandry has been outlawed since the Chinese takeover of the area in 1950 .
It is difficult to measure the incidence of polyandry in what may have been the world 's most polyandrous society .
In Tibet , polyandry has been outlawed since the Chinese takeover of the area in 1950 , so it is difficult to measure the incidence of polyandry in what may have been the world 's most polyandrous society .