The Instituto del Bien Com?n launched two studies on the state of the communal property system led by experts in the field. The first study, Indigenous Rights in Peruvian Law (written by Alberto Chirif), analyzes how the rights of native Amazonian communities have been gradually weakened by since being legally recognized in 1974? particularly under the leadership of Alberto Fujimori (1990-2000) and Alan Garc?a (2006-2011). The second study, Legal and Institutional Framework for Campesino Communities? Property System (written by Pedro Castillo Casta?eda and Laureano del Castillo) analyzes modifications to the legal and institutional frameworks related to campesino communities? property systems.