“…While common ownership may reduce industry competition (e.g., Azar et al, 2022Azar et al, , 2018, which even raises antitrust concern (e.g., Baker, 2016;Elhauge, 2015;Posner et al, 2017), it can also bring benefits such as improving corporate collaborations, innovation efficiency, and corporate governance (e.g., Chen et al, 2021;Freeman, 2021;He et al, 2019He et al, , 2020He & Huang, 2017;Kang et al, 2018;Li et al, 2021;Ramalingegowda et al, 2021). It's important for policymakers to understand both the costs and benefits of common ownership.…”