Research in Economics
Research in Economics > 2010 > 64 > 4 > 247-263
Research in Economics > 2010 > 64 > 4 > 224-228
Research in Economics > 2014 > 68 > 2 > 117-132
Research in Economics > 2010 > 64 > 4 > 247-263
Research in Economics > 2010 > 64 > 4 > 224-228
Research in Economics > 2014 > 68 > 2 > 117-132