Assume that in a certain economy, the LM curve is given by Y = 2,000r – 2,000 + 2(M/P) + u, where u is a shock that is equal to +200 half the time and –200 half the time, and the IS curve is given by Y = 8,000 – 2,000r. The price level (P) is fixed at 1.0. The natural rate of output is 4,000. The government wants to keep output as close as possible to 4,000 and does not care about anything else. Consider the following two policy rules: i. Set the money supply M equal to 1,000 and keep it there. ii. Manipulate M from day to day to keep the interest rate constant at 2 percent. a. Under rule i, what will Y be when u = +200? Under rule i, what will Y be when u = –200? b. Under rule ii, what will Y be when u = +200? Under rule ii, what will Y be when u = –200? c. Which rule will keep output closer to 4,000?

1. which one of the following would be an example of a supply-side market failure? a. a gas station is slowly leaking diesel fuel from its underground tanks, and after the leak is discovered, the business immediately cleans up the pollution at its own expense. b. a gas station is slowly leaking diesel fuel from its underground tanks, but the state uses taxpayer money to clean up the pollution rather than requiring the business to pay. c. your business wants to attract repeat customers by putting on a customer-appreciation picnic at a public park, but you decide not to because you couldn't prevent noncustomers from consuming the food and entertainment you provided. d. everyone rushes to the local retail outlet at midnight on the day of the release of a new video game console, and the store runs out before everyone is able to buy one.