Economic historian Douglas Irwin classifies the history of United States tariffs into three distinct periods: a revenue period (ca. 1790–1860), a restriction period (1861–1933), and a reciprocity period (1934 onwards).

Authors

• Person: Not available Organization: Wikipedia
  History of tariffs in the United States - Wikipedia

Sources

• History of tariffs in the United States - Wikipedia en.wikipedia.org Wikipedia via serper

Referenced by nodes (3)

• U.S. location
• tariff concept
• Douglas A. Irwin entity