6Crucini, Mario J. and Kahn, James. 1994.Tariffs and Aggregate Economic Activity:Lessons from the Great Depression. Mimeo, Ohio State University.
7Gamberoni, E. & R. Newfamer .2009. Trade Protection: Incipient but Worrisome Trends, Trade Notes, No. 37, The World Bank.
8Irwin, Douglas A. 1998. The Smoot-Hawley Tariff: A Quantitative Assessment. The Review of Economies and Statistics, Vol. 80, No. 2 , pp. 326-334.
9Jones, Joseph M., Jr. 1934. Tariff retaliation: Repercussions of the Hawley-Smoot Bill. Philadelphia: University of Pennsylvania Press.
10Madsen, Jakob B. 2001. Trade Barriers and the Collapse of World Trade during the Great Depression. Southern Economic Journal, Vol. 67, No. 4, pp. 848-868.
