Campbell, Doug. "Unsteady State : The Ongoing Evolution of Mainstream Economics," in Federal Reserve Bank of Richmond. "Spring/Summer 2008, Volume 12, Number 2/3," Econ Focus (Federal Reserve Bank of Richmond) (Spring/Summer 2008) : 14-18. https://fraser.stlouisfed.org/title/3941/item/476941/toc/504163 , accessed on April 19, 2024.