Seitelman, Lily , Foerster, Andrew T., 1982- and Matthes, Christian, 1979-. "The Highs and Lows of Productivity Growth, 2020-21," Economic Letter (Federal Reserve Bank of San Francisco) (August 3, 2020). https://fraser.stlouisfed.org/title/4960/item/633837, accessed on August 8, 2024.