hw4 - PADP 6950 Fertig Fall 2011 UGA Homework 4 Due 1 Anna...

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Unformatted text preview: PADP 6950 Fertig Fall 2011 UGA Homework 4 Due September 21, 2011 1. Anna has an income of $2000 this year, and she expects an income of $1100 next year. She can borrow and lend money at an interest rate of 10%. Consumption goods cost $1 per unit this year and there is no inflation. a. What is the present value of Anna's endowment? b. On a graph show the combinations of consumption this year and consumption next year that she can afford. Label Anna's endowment with the letter E. Write down Anna's budget equation. What is the slope of Anna's budget line? c. Suppose that Anna's utility function is U=C1C2 where U=2,475,000. Plot the indifference curve and find the tangent point. How much will Anna consume in each period? Will she borrow or save in the first period? d. If the interest rate went up to 20%, will she save or borrow? How does the amount compare to your answer in part c? 2. John Pigskin has a utility function of the form U = c . John is beginning his senior year of college football. If he is not seriously injured, he will receive a $1,000,000 contract for playing professional football. If an injury ends his football career, he will receive a $10,000 contract as a refuse removal facilitator in his hometown. There is a 10% chance that John will be injured badly enough to end his career. a. What is John's expected utility? b. If John pays $p for an insurance policy that would give him $1,000,000 if he suffered a career-ending injury while in college, then he would be sure to have an income of $1,000,000 p no matter what happened to him. Economic theory predicts that John would buy the insurance policy if it did not lower his expected utility. So, the most he would be willing to pay for the policy is such that his utility without risk would be equal to his expected utility with risk. Write an equation that can be solved to find the largest price that John would be willing to pay for this insurance policy. Solve this equation for p. ...
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This note was uploaded on 01/18/2012 for the course PADP 6950 taught by Professor Fergi during the Spring '11 term at UGA.

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