A classmate of yours is thinking of starting a used-textbook business to service your campus. The university bookstore already operates such a business but your classmate thinks the prices are much higher than they should be. He has asked you to become a partner in the business, which he thinks is going to be very successful, by contributing $15,000. The money will be used to rent office space, advertise, and purchase books. Would you invest the $15,000? How would you decide? What additional information would you want to have before making a final decision?