"I will lead a reform-oriented Federal Reserve and learn from both past successes and mistakes," Warsh said at the White House ceremony on Friday, according to CNN.
The 56-year-old, lawyer-by-training financier and billionaire, Warsh, was nominated for the position by President Donald Trump earlier this year.
His predecessor, Jerome Powell, ended up in a long-running conflict with Trump, who repeatedly expressed dissatisfaction that the policy rate was not being lowered as quickly as he wanted.
The question is what opportunities the new boss has in terms of interest rate cuts - stubbornly high inflation and a strong U.S. labor market mean that few believe Warsh can satisfy Trump's wishes.
What do you think?