Federal Reserve Bank of Chicago. Research Department
and Federal Reserve Bank of Chicago. "The Signaling, Screening, and Human Capital Effects of National Board Certification : Evidence from Chicago and Kentucky High Schools, Working Paper 2020-06" in Working Papers (Federal Reserve Bank of Chicago)
(January 2020).
https://fraser.stlouisfed.org/title/5285/item/610787, accessed on March 20, 2025.