State Ownership and Firm-level Performance, Aldo Musacchio, November 14, 2014, Paper. "State-owned enterprises (SOEs) remain widespread in various countries even after decades of privatization and liberalization reforms. In this paper we analyze a large dataset of listed SOEs, both majority- and minority-owned, covering several countries and industries between 1997 and 2012. We compare these SOEs to a sample of private firms using matching methods combined with differences-in-differences estimation to control for the endogenous choice of state ownership..." Link