Corporate key labs: Breakthrough or white elephant?

Based on manually collected data from Chinese listed firms' key laboratories at the state and provincial levels, this study shows that key laboratories improve firms' innovation output. Corporations with key laboratories at the state or provincial level produce more patents and citations than their counterparts. A series of endogenous treatment effects, including the Heckman twostep sample selection model, instrumental variable estimation, policy shock analysis, and propensity score matching, indicate that this study's main conclusion is robust and consistent. We also observe that key laboratories' beneficial impact on innovation output becomes more prominent for firms belonging to high-tech industries, those led by an inventor or scientist CEO, and those located in cities that enforce the protection of intellectual property. Further, key laboratories foster innovation mainly by developing scientific research capacity, increasing human capital, and improving R&D subsidies. Our findings demonstrate that key laboratories can benefit firms, their stakeholders, and the public in an emerging market such as China.