Claims for damages due to misrepresentations about investment products on the capital market give rise to one fundamental question: To what extent are market actors free to willingly cause damages to each other while seeking their own profit? In this context, German courts often apply Sec. 826 of the German Civil Code, which allows damages to be awarded to victims of intentional misconduct that is contrary to "moral conventions". Based on the economic analysis of law, it can be shown that the principle of reasonable trust in others is an important control mechanism in this specific context.