When the economy reaches stall speed

"If an airplane is moving too slowly, the plane is about to head down. Federal Reserve economist Jeremy Nalewaik has an interesting new paper exploring whether the same is true for the U.S. economy.

Nalewaik notes first that the 4 quarters prior to recessions were usually characterized by slower real GDP growth than is typically observed in an economic expansion..."

at http://www.econbrowser.com/archives/2011/05/when_the_econom.html