Commodity Export Prices and the Real Exchange Rate in Developing Countries: Coffee in Colombia

Sebastian Edwards, Economic Adjustment and Exchange Rates in Developing Countries (University of Chicago Press, 1986), chap. 7, https://www.nber.org/books-and-chapters/economic-adjustment-and-exchange-rates-developing-countries/commodity-export-prices-and-real-exchange-rate-developing-countries-coffee-colombia.