Treasurys and money market funds are among the prime targets for regulatory reveiw, she said.
The Fed chairman's remarks come as President Joe Biden pushes for $1.9 trillion in additional pandemic aid.
Every new sign of financial markets inflation is a piece of good news for the Federal Reserve.
The Fed meeting came as U.S. lawmakers tried to wrap up an agreement on new stimulus after months of deadlock.
Step one will be deciding how to proceed with several emergency Fed lending facilities.
With rates already low, central bankers have looked to fiscal policy to stimulate the economy.
More research will be necessary before the Fed issues a digital currency of its own.
Fed officials are more worried about the economy running out of steam than overheating.
A spike in coronavirus cases heightens the probability that the Fed will expand its bond buying.
The central bank said it would follow a diversified market index of U.S. corporate bonds.