Mason GaffneyMason Gaffney served previously at the Universities of North Carolina, Missouri, and Wisconsin, and at the think-tanks Resources for the Future, Inc., and the B.C. Institute for Economic Policy Analysis. His many scholarly articles roam across topicscovering land and resource economics, macro-economics, tax policy, and capital theory. He retired at age 89, but at 93 remains actively researching and writing. Read More Read Less