Rajiv is training for a triathlon, a timed race that combines swimming, biking, and running.
Consider the following sentence: Each hour he spends swimming is an hour that he can't spend biking or running.
Which basic concept of individual choice does this sentence best illustrate?
Rajiv has an incentive to spend more time on swimming than on biking or running. Rajiv can use time most efficiently by spending the same amounts of time on swimming, biking, and running. People usually exploit opportunities to make themselves better off. All choices have opportunity costs.
Which basic concept of individual choice does this sentence best illustrate?