This is a compendium of fifty-four papers written by distinguished economists in response to an invitation by the National Science Foundation's Directorate for the Social, Behavioral and Economic Sciences (NSF/SBE) to economists and relevant research communities in August 2010 to write white...

The authors use the proposition that it is the size of the net gains from a change to the volunteer army that determines its probability to describe circumstances which unambiguously increase the probability of a policy change. Certain events which intuitively seem to imply a greater probability...