C. The introduction of automatic teller machines reduces the demand for money



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tutorial task Open economy 21963
Rentgenografiya, 226-GURUH XUDOYBOQOV DOSTONBEK, Davronov Abulqosim 101-20, Dilafiruza

1. Use the model of the small open economy to predict what would happen to the trade balance, the real exchange rate, and the nominal exchange rate in response to each of the following events.

a. A fall in consumer confidence about the future induces consumers to spend less and

save more.

b. The introduction of a stylish line of Toyotas makes some consumers prefer foreign cars over domestic cars.

c. The introduction of automatic teller machines reduces the demand for money.

2. Consider an economy described by the following equations:

Y = C + I + G + NX,

Y = 5,000,

G = 1,000,

T = 1,000,

C = 250 + 0.75(Y −T),

I = 1,000 − 50r,

NX = 500 − 500e,

r = r* = 5

a. In this economy, solve for national saving, investment, the trade balance, and the equilibrium exchange rate.

b. Suppose now that G rises to 1,250. Solve for national saving, investment, the trade balance, and the equilibrium exchange rate. Explain what you find.

c. Now suppose that the world interest rate rises from 5 to 10 percent. (G is again 1,000.) Solve for national saving, investment, the trade balance, and the equilibrium exchange rate. Explain what you find.

3. The country of Leverett is a small open economy. Suddenly, a change in world fashions makes the exports of Leverett unpopular.

a. What happens in Leverett to saving, investment, net exports, the interest rate, and the exchange rate?

b. The citizens of Leverett like to travel abroad. How will this change in the exchange rate affect them?

c. The fiscal policymakers of Leverett want to adjust taxes to maintain the exchange rate at its previous level. What should they do? If they do this, what are the overall effects on saving, investment, net exports, and the interest rate?

4. A case study in this chapter concludes that if poor nations offered better production efficiency and legal protections, the trade balance in rich nations such as the United States would move toward surplus. Let’s consider why this might be the case.

a. If the world’s poor nations offer better production efficiency and legal protection, what would happen to the investment demand function in those countries?

b. How would the change you describe in part (a) affect the demand for loanable funds in world financial markets?

c. How would the change you describe in part (b) affect the world interest rate?

d. How would the change you describe in part (c) affect the trade balance in rich nations?



5. “Traveling in Mexico is much cheaper now than it was ten years ago,’’ says a friend. “Ten years ago, a dollar bought 10 pesos; this year, a dollar buys 15 pesos.’’ Is your friend right or wrong? Given that total inflation over this period was 25 percent in the United States and 100 percent in Mexico, has it become more or less expensive to travel in Mexico? Write your answer using a concrete example—such as an American hot dog versus a Mexican taco—that will convince your friend.
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