By Dr. Luis A. Martínez Tipe, PhD Director General & Principal Researcher, CAIDTech Originally published: September 3, 2015 Fuente: Savage, S. (2000). The Flaw of Averages. reproduced with permission. INTRODUCTION Traditionally, mine organisations use various types of quantitative methods to estimate profit and loss associated with a proposed mine project. Among all these measures of profitability, the Net Present Value (NPV) that is based on the Discounted Cash Flow (DCF)