Service sourcing and supplier relationships in product-centric servitization: a preliminary study. MARIO RAPACCINI † University of Florence Information Based Industrial Services Laboratory Department of Energy Engineering “Sergio Stecco” Via Cesare Lombroso 6/17 50134, Florence, Italy mario.rapaccini@unifi.it Ph: 0039 055 4796709 FILIPPO VISINTIN ‡ University of Florence Information Based Industrial Services Laboratory Department of Energy Engineering “Sergio Stecco” Via Cesare Lombroso 6/17 50134, Florence, Italy filippo.visintin@unifi.it Ph: 0039 055 4796736 (corresponding author) NICOLA SACCANI * University of Brescia Supply Chain and Service Management Research Centre Department of Industrial and Mechanical Engineering Via Branze 38, 25123 Brescia (Italy) nicola.saccani@ing.unibs.it Ph: 0039 030 3715723