Research in Economics
Research in Economics > 2006 > 60 > 4 > 188-198
Research in Economics > 2010 > 64 > 1 > 58-65
Research in Economics > 2012 > 66 > 2 > 149-160
Research in Economics > 2006 > 60 > 4 > 188-198
Research in Economics > 2010 > 64 > 1 > 58-65
Research in Economics > 2012 > 66 > 2 > 149-160