But only when investors are sufficiently risk-averse will markets offer adequate risk premiums. When worry is in short supply, risky borrowers and questionable schemes will have easy access to capital, and the financial system will become precarious. Too much money will chase the risky and the new, driving up asset prices and driving down prospective returns and safety. Clearly, in the months and years leading up to the crisis, few participants worried as much as they’re supposed to.
