“…Cross ownership, union bargaining, and managerial delegation effectively link the relationships of the stakeholders in modern enterprises, which enables us to analyze the conflicts within modern enterprises closer to reality. This paper is related to Le Wang (2018, 2020) and Wang et al (2022), which separately examined the effect of product differentiation, firms' corporate social responsibility activities, and cross-ownership on the conflict between principal stakeholders. This paper is also highly related to Fanti (2013), Mukherjee (2013), Han and Mukherjee (2017), and Buccella (2015Buccella ( , 2019, which separately investigate the effect of cross-ownership, innovation, product differentiation, and strategic trade policies in a unionized industry.…”