Every society facestrade-offs because we live in a world of scarcity. Suppose astudent-athlete has the opportunity to earn $600,000

600,000 next year playing for a minor league baseballteam, $500, 000

500,000 next year playing for a European professional footballteam, or$0 returning to college for another year.

The opportunity cost of thestudent-athlete returning to college next year is $

nothing

.