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On the stability of the classification of financial ratios : an application of factor and transformation analysis
Yli-Olli, Paavo; Virtanen, Ilkka - 1986
Persistent link: https://www.econbiz.de/10000740394
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On the long-term stability and cross-country similarity of the factor patterns in the arbitrage pricing model
Yli-Olli, Paavo; Virtanen, Ilkka; Martikainen, Teppo - 1989
Persistent link: https://www.econbiz.de/10000787185