The document discusses agency problems that arise from the separation of ownership and control in corporations. It defines agency problems as managers potentially prioritizing their personal goals over corporate goals. It then outlines some ways that agency problems can be prevented, including through market forces like security market participants actively engaging in management and hostile takeovers, as well as through agency costs. Agency costs refer to the costs shareholders take on to try and ensure managers maximize shareholder wealth, such as through monitoring, bonding, and structuring manager compensation.