(Knittel, Christopher R., and Robert S. Pindyck. “The Simple Economics of Commodity Price Speculation.” American Economic Journal: Macroeconomics 8, no. 2 (2016): 85-110.)
(Knittel, Christopher R., and Robert S. Pindyck. “The Simple Economics of Commodity Price Speculation.” American Economic Journal: Macroeconomics 8, no. 2 (2016): 85-110.)