Factor Intensity and Site Geology as Determinants of Returns to Scale in Coal Mining

Gale Boyd is an Associate Research Professor in the Social Science Research Institute & Department of Economics. He was the Director of the Triangle Federal Statistical Research Data Center from 2006-2020.  Prior to joining Duke University, Gale was an economist at Argonne National Laboratory. His career has been primarily in area of industrial energy/environmental economics. His recent work includes using the non-public Census micro-data and other non-pubic dat