Claudio Piga Nottingham University Business School   jubilee Campus Wollaton Road Nottingham, NG8 1BB United Kingdom   claudio.piga@nottingham.ac.uk   http://www.nottingham.ac.uk/ttri/piga.html   Biographical Sketch: Lecturer in Industrial Organization at NUBS. DPhil at York (UK) MSc in Economics at Coripe Piemonte (Turin, Italy).   Primary Research Focus: Game Theory; Differential Games; Principal-Agent model; Strategic use of Capital structure   JEL Areas: L1 : Market Structure, Firm Strategy, and Market Performance: General M2 : Business Economics: General