Dr. Ari is Assistant Professor at University of Nebraska-Lincoln. He received his BA in Sociology from the Universidad de San Andres in La Paz, Bolivia. He completed his MA in Political Science at UMSA and has published several articles and books in Bolivia, including Historia de Una Esperanza(1994), a book on economic change and the making of new tradition. He co-authored Tata Fermin (1996), a book on the Indian leader Fermin Vallejos and indigenous movements in the southern part of Cochabamba. He also edited Aruskipasinasataki: The Twenty-First Century and the Future of the Aymara Nation (2001), a book on the collective human rights of Aymara peoples. At the present, Dr. Ari is writing two different books "From the Law of Indies to Indian Law: Deconstructing Peasant Insurgency in Modern Bolivia, 1921-1967," and "Similarities and differences: The making of identity along Bolivian, Peruvian and Chilean borders, 1871-1977.

As an Aymara activist, he founded the Kechuaymara Foundation in La Paz and other 7 grassroots organizations in Bolivia and Peru. In addition, he was the first director of the largest Internet site on Aymara peoples. Aymara Net ".