By Jirjahn Uwe   Pfeifer Christian   Tsertsvadze Georgi   in Applied Economics Letters

ISSN:1466-4291|16|10|1049-1052

Routledge Ltd‎(2009)‎

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By Heywood John   Jirjahn Uwe   Tsertsvadze Georgi   in International Economic Journal

ISSN:1016-8737|19|2|235-250

Routledge Ltd‎(2005)‎

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