- N10 - Economic History: Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations: General, International, or Comparative8
- N11 - Economic History: Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations: U.S.; Canada: Pre-19137
- N12 - Economic History: Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations: U.S.; Canada: 1913-6
- N14 - Economic History: Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations: Europe: 1913-4
- N16 - Economic History: Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations: Latin America; Caribbean9
- N20 - Economic History: Financial Markets and Institutions: General, International, or Comparative1
- N21 - Economic History: Financial Markets and Institutions: U.S.; Canada: Pre-191313
- N22 - Economic History: Financial Markets and Institutions: U.S.; Canada: 1913-634
- N23 - Economic History: Financial Markets and Institutions: Europe: Pre-19131
- N24 - Economic History: Financial Markets and Institutions: Europe: 1913-3
- N26 - Economic History: Financial Markets and Institutions: Latin America; Caribbean1
- N32 - Economic History: Labor and Consumers, Demography, Education, Health, Welfare, Income, Wealth, Religion, and Philanthropy: U.S.; Canada: 1913-3
- N33 - Economic History: Labor and Consumers, Demography, Education, Health, Welfare, Income, Wealth, Religion, and Philanthropy: Europe: Pre-19131
- N40 - Economic History: Government, War, Law, International Relations, and Regulation: General, International, or Comparative2
- N41 - Economic History: Government, War, Law, International Relations, and Regulation: U.S.; Canada: Pre-19131
- N42 - Economic History: Government, War, Law, International Relations, and Regulation: U.S.; Canada: 1913-1
- N43 - Economic History: Government, War, Law, International Relations, and Regulation: Europe: Pre-19131
- N44 - Economic History: Government, War, Law, International Relations, and Regulation: Europe: 1913-1
- N52 - Economic History: Agriculture, Natural Resources, Environment, and Extractive Industries: U.S.; Canada: 1913-676
- N56 - Economic History: Agriculture, Natural Resources, Environment, and Extractive Industries: Latin America; Caribbean1