With new growth opportunities come new problems for companies out to exploit them.
Measure takes more account of the "shadow banking" sector, and its authors say weakness there will hinder an economic recovery.
Two U.K. companies' travails show the cost of underfunding defined benefits.
With buyout loan covenant violations on the rise, more highly leveraged companies must turn to the bond market. But more issuance could hurt prices.
The balance sheets of the four banks closed Friday were disproportionately made up of such loans compared to the industry average.