Juan Ignacio Guzmán Author

John E. Tilton is a Research Professor in the Division of Economics and Business and a University Professor Emeritus at the Colorado School of Mines, Golden, Colorado, USA. He is also a Professor in the Department of Mining Engineering at the Pontificia Universidad Católica de Chile as well as a Resources for the Future University Fellow.

Juan Ignacio Guzmán is Chief Executive Officer of GEM Ltda., an industrial engineering company that advises the mining industry in management and economics, and of BOAMINE SpA, provider of software solutions for the mining industry. He is also Assistant Professor in the Department of Mining Engineering, Pontificia Universidad Católica de Chile.