Trade and Tariff Protectionism on S&D

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I would like to acknowledge the work of Dick Brunelle and Steven Reff from Reffonomics.com whose work inspired many of the review games on this site. I would also like to thank Francis McMann, James Chasey, and Steven Reff who taught me how to be an effective AP Economics teacher at AP summer institutes; as well as the countless high school teachers, and college professors from the AP readings, economics Facebook groups, and #econtwitter.