The article looks at how state-owned companies in China have changed how they share profits with the government over time. It talks about how the system evolved from a fund-based approach to one where companies keep more of their profits. The researchers studied different methods like profit retention and contract responsibility to see what worked best. They found that these changes helped improve how profits were shared between the government and state-owned companies. This research helps us understand the history of profit sharing in these companies and how it has changed over time.