Economics Letters
Economics Letters > 2003 > 79 > 2 > 263-267
Economics Letters > 2003 > 79 > 3 > 417-421
Economics Letters > 2003 > 80 > 1 > 35-44
Economics Letters > 2003 > 80 > 1 > 45-51
Economics Letters > 2003 > 79 > 2 > 263-267
Economics Letters > 2003 > 79 > 3 > 417-421
Economics Letters > 2003 > 80 > 1 > 35-44
Economics Letters > 2003 > 80 > 1 > 45-51