There are risks and benefits to digital currencies, the Fed chair said
Continued support from the Fed will be required
The requirements were relaxed as part of the Fed's efforts to shore up the financial system
A robust recovery later this year could accelerate inflation and send long-term rates surging
New administration making global warming fight a priority
Whether big banks would be resilient to a severe recession, an unemployment spike and a stock market plunge will be tested
On Wednesday, Powell may aim to puncture speculation about the Fed curtailing its bond purchase program
Newly released transcripts show that many Federal Reserve officials had concerns at the time
Central bank expects to keep short-term benchmark interest rate near zero through at least 2023
Congress has yet to agree on another round of urgently needed financial aid