What is the total payoff from the projects in future years

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Reference no: EM131479935

Question: In this question, assume all dollar units are real dollars in billions, so, for example, $150 means $150 billion. It is year 0. Argentina thinks it can find $150 of domestic investment projects with an MPK of 10% (each $1 invested pays off $0.10 in every later year). Argentina invests $84 in year 0 by borrowing $84 from the rest of the world at a world real interest rate r * of 5%. There is no further borrowing or investment after this.

Use the standard assumptions: Assume initial external wealth W (W in year -1) is 0. Assume G = 0 always; and assume I = 0 except in year 0. Also, assume NUT = KA = 0 and that there is no net labor income so NFIA = r * W

The projects start to pay off in year 1 and continue to pay off all years thereafter. Interest is paid in perpetuity, in year 1 and every year thereafter. In addition, assume that if the projects are not done, then GDP = Q = C = $200 in all years, so that PV(Q) = PV(C) = 200 + 200/0.05 = 4,200.

a. Should Argentina fund the $84 worth of projects? Explain your answer.

b. Why might Argentina be able to borrow only $84 and not $150?

c. From this point forward, assume the projects totaling $84 are funded and completed in year 0. If the MPK is 10%, what is the total payoff from the projects in future years?

d. Assume this is added to the $200 of GDP in all years starting in year 1. In dollars, what is Argentina's Q = GDP in year 0, year 1, and later years?

e. At year 0, what is the new PV(Q) in dollars? Hint: To ease computation, calculate the value of the increment in PV(Q) due to the extra output in later years.

f. At year 0, what is the new PV(I ) in dollars? Therefore, what does the LRBC say is the new PV(C) in dollars?

g. Assume that Argentina is consumption smoothing. What is the percent change in PV(C)? What is the new level of C in all years? Is Argentina better off?

h. For the year the projects go ahead, year 0, explain Argentina's balance of payments as follows: state the levels of CA, TB, NFIA, and FA.

i. What happens in later years? State the levels of CA, TB, NFIA, and FA in year 1 and every later year.

Reference no: EM131479935

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