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Economic Modelling > 2013 > 32 > Complete > 351-360
European Journal of Political Economy > 2002 > 18 > 3 > 475-498
European Journal of Operational Research > 1996 > 94 > 3 > 439-452
Economic Modelling > 2013 > 32 > Complete > 351-360
European Journal of Political Economy > 2002 > 18 > 3 > 475-498
European Journal of Operational Research > 1996 > 94 > 3 > 439-452