By Rhee Keun   Pyo Hak   in Journal of Productivity Analysis

ISSN:0895-562X|34|2|111-131

Springer Publishing Company ‎(2010)‎

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By PYO HAK K.   in International Economic Journal

ISSN:1016-8737|2|3|79-121

Routledge Ltd‎(1988)‎

Access to resources Favorite 15.580938