Lubik, Thomas A.
and Matthes, Christian, 1979-. "Calculating the Natural Rate of Interest : Brief : A Comparison of Two Alternative Approaches, No. 15-10,"
Economic Brief
(October 2015).
https://fraser.stlouisfed.org/title/6034/item/583941/content/pdf/frbrich_eb_15-10, accessed on June 8, 2026.