This page provides updates to the Kahn-Rich trend productivity model, as described in our 2007 Journal of Monetary Economics paper, "Tracking the New Economy: Using Growth Theory to Detect Changes in Trend Productivity." The model is updated eight times per year with each BLS "Productivity and Costs" data release.
August 2025 (posted August 21, 2025)
June 2025 (posted August 21, 2025)
May 2025 (posted August 21, 2025)
March 2025 (posted August 21, 2025)
February 2025 (posted August 21, 2025)
December 2024 (posted January 15, 2025)
November 2024 (posted January 15, 2025)
September 2024 (posted January 15, 2025)
August 2024 (posted August 11, 2024)
June 2024 (posted August 11, 2024)
May 2024 (posted May 9, 2024)
March 2024 (posted May 9, 2024)
February 2024 (posted May 9, 2024)
December 2023 (posted December 11, 2023)
November 2023 (posted December 11, 2023)
September 2023 (posted October 11, 2023)
August 2023 (posted August 7, 2023)
June 2023 (posted June 11, 2023)
June 2023 (posted June 11, 2023)
May 2023 (posted May 11, 2023)
March 2023 (posted March 16, 2023)
February 2023 (posted February 14, 2023)
December 2022 (posted January 3, 2023)
November 2022 (posted November 15, 2022)
September 2022 (posted September 10, 2022)
August 2022 (posted August 14, 2022)
May 2022 (corrected June 8, 2022)
March 2022 (posted May 12, 2022)
February 2022 (posted February 8, 2022)
December 2021 (posted December 15, 2021)
November 2021 (posted November 12, 2021)
August 2021 (posted August 17, 2021)
June 2021 (posted June 8, 2021)
May 2021 (posted May 14, 2021)
March 2021 (posted March 19, 2021)
February 2021 (posted February 14, 2021)
December 2020 (posted January 20, 2021)
November 2020 (posted January 5, 2021)
September 2020 (posted September 16, 2020)
August 2020 (posted September 9, 2020)
June 2020 (posted June 23, 2020)
May 2020 (posted May 26, 2020)
March 2020 (posted March 15, 2020)
February 2020 (posted February 18, 2020)
December 2019 (posted December 27, 2019)
November 2019 (posted November 20, 2019)
September 2019 (posted September 17, 2019)
August 2019 (posted August 26, 2019)
May 2019 (posted May 19, 2019)