Ricardo T. Fernholz, "Nonparametric Methods and Local-Time-Based Estimation for Dynamic Power Law Distributions", Journal of Applied Econometrics, Vol. 32, No. 7, 2017, pp. 1244-1260. There are 22 data files in .txt format that report the monthly spot prices of aluminum, bananas, barley, beef, Brent crude oil, cocoa, copper, corn, cotton, iron, lamb, nickel, orange, poultry, rubber, soybeans, sugar, tin, wheat, fine wool, and zinc from 1/1980 to 12/2015. Each file reports the price of one commodity. These data were obtained from the Federal Reserve Bank of St. Louis (FRED) at hhttps://research.stlouisfed.org/fred2 [research.stlouisfed.org]. The 22 data files and an R program file are zipped in rtf-files.zip. All these files are ASCII files in DOS format. Unix/Linux users should use "unzip -a". Ricardo T. Fernholz Assistant Professor of Economics Robert Day School of Economics and Finance Claremont McKenna College 500 E. Ninth St. Claremont, CA 91711 909-607-3795 rfernholz [AT] cmc.edu www.ricardofernholz.com