Treasury official who spotted $2 trillion error is recent economics Ph.D.
John Bellows may not have the household-name recognition of Timothy Geithner, Ben Bernanke or Christina Romer. But the U.S. Treasury Department’s acting assistant secretary has generated widespread buzz in finance and policy circles since finding a $2 trillion error in the Standard & Poor’s (S&P) calculations it used to support a historic decision to downgrade the nation’s credit rating.