Research in Economics
Research in Economics > 2003 > 57 > 1 > 65-81
Research in Economics > 2003 > 57 > 1 > 39-51
Research in Economics > 2004 > 58 > 1 > 59-74
Research in Economics > 2004 > 58 > 3 > 187-203
Research in Economics > 2004 > 58 > 3 > 205-218