What are the economic and cultural basis for fraternal polyandry among Tibetans and people living in that region? (Please back your statements and ideas on what you have read and the audiovisual materials) https://www.youtube.com/watch?v=prHCBereGdE&feature=youtu.be https://www.youtube.com/watch?v=u7HKmu3eMEk&feature=youtu.be https://www.youtube.com/watch?v=u7HKmu3eMEk&feature=youtu.be https://www.youtube.com/watch?v=NiHAjq-Ls7E&feature=youtu.be https://www.youtube.com/watch?v=d4yjrDSvze0&feature=youtu.be