You have spent $15,000 so far on tuition in a two-year graduate program, and have finished the first year. Because of a tuition increase, the second year will cost you $16,000. You have just received a very attractive job offer—one that you were hoping to get after graduation, and one that, if you don’t take now, will not be available when you graduate. If you accept the offer, you will need to drop out of the program. A friend has told you that you are crazy to drop out of the program because you have already paid $15,000 in tuition. What role, if any, should this $15,000 play in your decision to accept or reject the offer?