From the article:
While Bernstein has specialized in economics for decades, he holds no degrees in the field, according to his biography on a White House website. Bernstein has a bachelor’s degree in fine arts from the Manhattan School of Music, a master’s degree in social work from the Hunter School of Social Work, and a master’s degree in philosophy and Ph.D. in social welfare from Columbia University
It is unlikely this guy ever took Econ 101. He was a Music major at the Manhattan School of Music. He played jazz on the bass. I doubt the school has an economic department or econ faculty. Bad enough Joe appointed him but the senate approved him.
He specializes in a field of which he knows nothing. That, of course, doesn’t stop him from giving advice.