Shadow banks, which played a key role in triggering the recent global financial crisis, and venture capital companies that followed, have partly displaced traditional banks from corporate financing. Participation in the company as a shareholder increases the equity of these companies. At the same time, venture capital firms are pushing them to submit business plans with extreme growth assumptions that are intended to tempt other venture capital firms to provide additional equity for these companies. Unicorns are to be created that will eventually end up on the stock exchange. The whole thing looks suspiciously like a pyramid scheme. Where can one find empirical studies on this problem, which is capable of triggering the next global financial crisis?