Seminal theories of the firm posit that firm ownership is allocated to minimize contractual inefficiencies. Yet, it remains unclear how much the optimal ownership choice affects firm performance in practice. This paper provides a first quantification of the gains from optimal ownership within multinational firms by exploiting a major liberalization of China’s policy restrictions on foreign ownership. The liberalization allowed previously restricted firms to become fully foreign-owned. We find that these reoptimized ownership choices raise firm output by 40% and productivity by 7.5% on average. An extended property-rights theory of the multinational firm rationalizes these effects and their heterogeneity.

Following the enactment of reforms in the mid-1990s, China's state-owned enterprises (SOEs) became more profitable. Using theoretical insights from Azmat, Manning, and Van Reenen (2012) and Karabarbounis and Neiman (2014) and econometric methods in De Loecker andWarzynski (2012), this paper finds that SOE restructuring was nevertheless limited. This is because SOE profitability gains in part reflect that they were under less political pressure to hire excess labor and also their cost of capital fell and their capital-labor elasticity of substitution generally exceeded unity. Moreover, SOE productivity lagged that of foreign and private firms.