Bastian Hartmann investigates the reasons for and consequences of divorces. He presents a comprehensive picture of the interrelationships between economic and familial situations. Marriages are entered into as a lifelong commitment, yet in reality, it often proves difficult to uphold this promise, and many marriages end in divorce. On one hand, it becomes evident that the financial implications of divorce heavily depend on decisions made within the marriage (such as those regarding fertility and employment). On the other hand, it is clear that the potential consequences of separation influence decisions made within the marriage. The focus on economic aspects and the consistent application of a decision-theoretical approach reveal that problems can quickly arise from a previously equal and loving relationship in a marriage.