The revenue act followed the Smoot Hawley Tariff of 1930, which produced ill effects and a trade war upon already strained economic conditions.<ref>[https://books.google.com/books?id=o1V2AwAAQBAJ&pg=RA1-PA80 Diversity and Society: Race, Ethnicity, and Gender, 2011/2012 Update]</ref> | The revenue act followed the Smoot Hawley Tariff of 1930, which produced ill effects and a trade war upon already strained economic conditions.<ref>[https://books.google.com/books?id=o1V2AwAAQBAJ&pg=RA1-PA80 Diversity and Society: Race, Ethnicity, and Gender, 2011/2012 Update]</ref> |