- Making Sense of Smoot-Hawley: Technology and Tariffs
- How the Republicans Caused the Stock Market Crash of 1929: GPT's, Failed Transitions, and Commercial Policy
- The Economics of Speed: Machine Speed as the Key Factor in Productivity
- Interregional and International Trade
- Mass Production, the Stock Market Crash, and the Great Depression: The Macroeconomics of Electrification (Contributions in Economics and Economic History)




















