Congress must also limit banks' size and activities, researcher to testify on Thursday.
Janet Tavakoli argues there is no guarantee hedges will pay off "when the chips are down."
Asset price inflation has exceeded GDP by 1.3 percent annually since 1960, thanks to low interest rates.
More businesses reported an increase in capital spending than a decrease for the first time in a year.
Can a bankruptcy-remote consortium foreclose on securitized mortgages?
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