The U.S. economy faces enormous questions and challenges as it attempts to recover from the collapse of 2008-09. Some of the most pressing questions are a series of longer-term, structural challenges: Can we establish a growth engine driven by something other than financial bubbles? Can we renew...

Wall Street hyper-speculation brought the global economy to its knees in 2008-09.  To prevent a 1930s-level Depression at that time, economic policymakers throughout the world enacted extraordinary measures.  These included large-scale fiscal stimulus programs, financed by major expansions in...