Economics Letters
Economics Letters > 2003 > 78 > 3 > 357-363
Economics Letters > 2003 > 78 > 3 > 317-321
Economics Letters > 2003 > 79 > 3 > 325-331
Economics Letters > 2003 > 80 > 1 > 53-60
Economics Letters > 2003 > 78 > 3 > 357-363
Economics Letters > 2003 > 78 > 3 > 317-321
Economics Letters > 2003 > 79 > 3 > 325-331
Economics Letters > 2003 > 80 > 1 > 53-60