Question

Simone is training for a triathlon, a timed race that combines swimming, biking, and running. Consider the following sentence: Because her pool sessions are helping her swim more quickly, Simone plans to reduce by 1 hour per week the time she spends training on the bike and increase by 1 hour the time she spends in the swimming pool; however, her husband says that she should stop doing any biking and running and spend all 20 hours per week in the pool. Which basic principle of individual choice does Simone seem to understand that her husband does not?

Answer 1

Answer: Marginal decision making

       

Explanation: Her husband did not understand that while making decision, sometimes individuals have to choose option on margin basis.

If Simone decides to take all her time in the pool then she will loose the benefit she is getting from the bike. The value that Simone is getting from biking might be a little bit higher what she is getting from swimming.

This whole process brings her the overall development and its not the case of choosing one option over other.