Alliances in the bio-pharmaceutical industry are important for company success, but they often end. By studying these alliances, researchers found that when companies believe an alliance will bring them big benefits, they are less likely to end it. However, if the companies involved are very focused on technology or if the market is crowded, the alliance is more likely to end. Also, if a company has a moderate amount of different products, the alliance is less likely to end. This study helps us understand what makes alliances last or fail, which can help companies make better decisions in the future.