Research in Economics
Research in Economics > 2009 > 63 > 4 > 266-281
Research in Economics > 2010 > 64 > 1 > 1-17
Research in Economics > 2014 > 68 > 4 > 324-337
Research in Economics > 2009 > 63 > 4 > 266-281
Research in Economics > 2010 > 64 > 1 > 1-17
Research in Economics > 2014 > 68 > 4 > 324-337