Popularity: A Bridge Between Classical and Behavioral Finance (Roger Ibbotson, et.al.)
Major Revision of CAPM
In a recently published book, Popularity: A Bridge Between Classical and Behavioral Finance (Roger Ibbotson, et.al.) the authors present an asset pricing model --Popularity Asset Pricing Model (PAPM) -- that expands the widely used Capital Asset Pricing Model (CAPM) by adding non-risk, behavioral and non-pecuniary factor characteristics to CAPM’s sole f…