University Professor Emeritus, Economics and Business
PhD, Economics, Yale University
MA, Economics, Yale University
BA, Public & International Affairs, Princeton University
- Environmental and natural resource economics
- Commodity prices and markets
- Metal production, trade, use, and recycling
- Material substitution and the nature of metal demand
- Depletion and the long-run availability of mineral commodities
- Mining and economic development
Selected Recent Publications
“Public Policy and Future Mineral Supplies,” Resources Policy (2018), PP. 55-60. Co-authored with P.C.F. Crowson, John H. DeYoung Jr., Roderick G. Eggert, Magnus Ericsson, Juan Ignacio Guzmán, David Humphreys, Gustavo Lagos, Philip Maxwell, Marian Radetzki, Donald A. Singer, and Friedrich-W. Wellmer.
“Assessing the Market Power of Mineral Commodity Producers,” Mineral Economics (2018), pp. 71-76.
“Global Climate Policy and the Polluter Pays Principle: A Different Perspective,” Resources Policy (2016), pp. 117-118.
“Cyclical and Secular Determinants of Productivity in the Copper, Aluminum, Iron Ore, and Coal Industries,” Mineral Economics (2014), pp. 1-19.
“The Terms of Trade Debate and the Policy Implications for Primary Product Producers,” Resources Policy (2013), pp. 196-203.
“Using the Cumulative Availability Curve to Assess the Threat of Depletion: The Case of Lithium,” Resources Policy (2009), pp. 185-194. Co-authored with Andrés Yaksic.
Mineral Economics and Policy (Routledge for RFF Press, 2016). Co-authored with Juan Ignacio Guzmán.
On Borrowed Time: Assessing the Threat of Mineral Depletion (RFF Press, 2003).
World Metal Demand: Trends and Prospects (RFF Press, 1990). Editor.
Material Substitution: Lessons from Tin-Using Industries (RFF Press, 1983). Co-authored with P.D. Canavan, F.R. Demler, and D.G. Gill.
The Future of Nonfuel Minerals (Brookings Institution, 1977).
International Diffusion of Technology: The Case of Semiconductors (Brookings Institution, 1971).
Select Recent Presentations
Our Mental Models of Mineral Depletion and Why They Matter
The Future Availability of Mineral Commodities
Understanding Mineral Commodity Prices: Short-Run Fluctuations and Long-Run Trends
The Resource Curse: Causes and Consequences
Prebisch, Singer, and the Great Terms of Trade Debate
Nature of Material Substitution and the Implications for Metal Demand