Twenty-two Years of the NBER-ASA Quarterly Economic Outlook Surveys: Aspects and Comparisons of Forecasting Performance

Victor Zarnowitz and Phillip Braun, Business Cycles, Indicators, and Forecasting (University of Chicago Press, 1993), chap. 1, https://www.nber.org/books-and-chapters/business-cycles-indicators-and-forecasting/twenty-two-years-nber-asa-quarterly-economic-outlook-surveys-aspects-and-comparisons-forecasting.