“…There is a large literature that considers various strategic aspects of sourcing (see, e.g., Cachon and Harker (2002), Shy and Stenbacka (2003), Chen et al (2004), Heavner (2004), Chen (2005), Buehler and Haucap (2006), Arya et al (2008a,b), Chen et al (2009)). The paper most closely related to ours is Chen (2005), who argues that an integrated firm might have incentive to disintegrate in order to better exploit scale economies.…”