Intermediate Microeconomics and Its Application 12th Edition by Walter Nicholson,Christopher Snyder

Exercise 33

Will and Becky are two college students who are planning on Sunday how much they will study on Monday for a test on Tuesday. Will weighs future utility the same as current utility. Becky is more impulsive. She puts weight 1 on current period utility but only weight w on utility earned in future periods where 0
a. Under what condition on s and b would Will plan to study for the test? What condition is required for him to carry through on his plan?
b. Under what conditions on s and b would Becky plan to study for the test? What condition is required for her to carry through on her plan?