Raghuram Rajan said the Fed should already have raised interest rates and that he would take a more hawkish approach as US inflation remains elevated.
He pointed to strong data-centre investment, persistent fiscal deficits and continued consumer spending as signs that US financial conditions are not sufficiently restrictive.
Rajan backed Fed Chair Kevin Warsh's anti-inflation instincts, saying investors will look to his Jackson Hole speech for a clear plan on bringing inflation down.