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South African Journal of Economics > 81 > 1 > 20 - 34
Journal of International Money and Finance > 2011 > 30 > 5 > 817-830
Journal of Money, Credit and Banking > 42 > 7 > 1447 - 1467
Journal of International Money and Finance > 2010 > 29 > 5 > 919-937
South African Journal of Economics > 78 > 1 > 40 - 56