This paper studies the determinants of firm-level revenues, as a measure of the performance of firms in China’s domestic and export markets. The analysis of the determinants of the aforementioned outcomes calls for a mixed linear–nonlinear econometric approach. The paper proposes specifying a system of equations which is inspired by Basmann’s work and recent theoretical work in international economics and conducts comparative static analyses regarding the role of exogenous shocks to the system to flesh out the relative importance of transmissions across outcomes.