Federal Reserve Bank of St. Louis and Bullard, James. "Optimal Macroeconomic Policies in a Heterogeneous World : Presented at the BSE Summer Forum, Expectations in Dynamic Macroeconomic Models, Barcelona, Spain" in Statements and Speeches of James Bullard (June 20, 2023). https://fraser.stlouisfed.org/title/7161/item/654970, accessed on February 15, 2025.