Research in Economics
Research in Economics > 1997 > 51 > 4 > 333-358
Research in Economics > 2006 > 60 > 2 > 85-96
Research in Economics > 2006 > 60 > 2 > 69-84
Research in Economics > 2010 > 64 > 2 > 110-120
Research in Economics > 2015 > 69 > 1 > 51-62