Research in Economics
Research in Economics > 2004 > 58 > 2 > 125-133
Research in Economics > 2005 > 59 > 4 > 335-344
Research in Economics > 2011 > 65 > 3 > 144-151
Research in Economics > 2012 > 66 > 1 > 106-109
Research in Economics > 2004 > 58 > 2 > 125-133
Research in Economics > 2005 > 59 > 4 > 335-344
Research in Economics > 2011 > 65 > 3 > 144-151
Research in Economics > 2012 > 66 > 1 > 106-109