"All the alleged key causes of SOE [State-Owned Enterprise] inefficiency—the principal–agent problem, the and the soft budget constraint—are, while real, not unique to state-owned enterprises. Large private-sector firms with dispersed ownership also suffer from the principal-agent problem and the free-rider problem. So, in these two areas, forms of ownership do matter, but the critical divide is not between state and private ownership—it is between concentrated and dispersed ownerships."