The article explores how to make cooperative games more stable by offering extra payments to players who stick to their groups. By giving these payments, the games can become more balanced and less likely to fall apart. The researchers looked at different types of games and found ways to calculate the minimum payment needed to keep the games stable. They focused on weighted voting games, which can represent decision-making in politics and teamwork in groups. Overall, the study shows how external payments can help maintain cooperation in various types of games.