“…Gretz et al (2009), Liao (2007), and Kujal and Ruiz (2009) consider the cost sharing structure. Kind (2006, 2008), Kang (2006Kang ( , 2008, and DeCourcy (2005) consider the reward for performance structure. As far as we are aware, no one has compared funding structures, or indeed, noticed the fact that the two different structures exist in the literature.…”