What is opportunity cost in decision making?

• A. The monetary cost of a project
• B. The value of the next best alternative forgone when choosing an action
• C. The interest earned on savings
• D. The time value of money

Answer: (B)

Opportunity cost is the value of the next best alternative you give up when you choose one action over another. When you decide how to allocate resources like money or time, you’re not just taking on the explicit cost of what you choose; you’re also forgoing the benefits you would have gotten from the best of the options you didn’t pick. This helps you compare choices by considering what you sacrifice, not just what you spend. For example, if you spend money on a movie, the opportunity cost is what else you could have done with that money (like buying a book or investing it). In finance, choosing one project means weighing the foregone returns from the next best alternative; that foregone value is the opportunity cost. This concept is broader than the mere monetary outlay, and it complements ideas like the time value of money by focusing on what could have been gained from the best alternative.