Giuseppe De feo University of Strathclyde, Glasgow and Università degli Studi di Pavia   Sir William Duncan Building Sir William Duncan Building 130 Rottenrow Glasgow, G40GE United Kingdom   giuseppe.defeo@strath.ac.uk   web:http://www.strath.ac.uk/economics/staff/defeogiuseppedr/           JEL Areas: D8 : Information, Knowledge, and Uncertainty: General L : Industrial Organization