The book "Real Options and Investment Incentives" by Gunther Friedl provides a comprehensive analysis of decision-making in large companies, particularly regarding the delegation of investment decisions to the respective departments. It examines how divisional managers, who possess better information, are enabled to make informed decisions, while also considering the risk that they may prioritize their own interests over the company's goals. The monograph combines two significant research strands: the control of investment decisions and the evaluation of investments. This connection fosters a deeper understanding of the dynamics and challenges of investment decisions within companies, especially concerning the possibility of making further decisions after the initial investment decision.