Federal Reserve Bank of St. Louis and Bullard, James. "Optimal Macroeconomic Policies in a Heterogeneous World : Presented at Recent Developments in Macroeconomic Policy and Theory, Santorini, Greece" in Statements and Speeches of James Bullard (June 17, 2023). https://fraser.stlouisfed.org/title/7161/item/654969, accessed on March 5, 2025.