Journal Article The “Optimum Tariff” and the Cost of Exports Get access J. J. Polak J. J. Polak Washington, D.C. Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 19, Issue 1, 1950, Pages 36–41, https://doi.org/10.2307/2296269 Published: 01 December 1950