The impact of China's outward foreign direct investment on domestic innovation

This paper explores the reversal technology spillovers of outward foreign direct investment (OFDI) on Chinese firms. Combining a uniquely merged database of Chinese firm-level OFDI and patent data and applying the Propensity-Score-Method-Difference-In-Differences (PSM-DID) methodology, we find a positive causal effect of OFDI on invention patent applications. Some estimations of heterogeneous effects show that OFDI promotes invention patent applications for private enterprises but has mute impact on state-owned and foreign-owned enterprises. With respect to OFDI host countries, OFDI toward developed countries is more effective for promoting innovation activities than developing countries. Three potential transmission channels of OFDI are empirically tested: direct technology purchases, access to high-tech inputs, and international mobility of personnel. Lastly, some policy implications are raised for China's "Going Out" strategy and the economic development driven by innovation. (c) 2021 Published by Elsevier Inc.