Cure two ills at once by giving banks a choice.
How much more economic growth could the US achieve with better policies? The issue has enlivened the presidential campaign.
The continuing Greek debt crisis and slow growth in other parts of Europe are leading many economists to reiterate the view that the euro is a bad idea.
While 4 percent growth can last for years at the state level, it has never been anything approaching the norm in US economic history, even during the boom years that followed World War II.