Question

In: Economics

Purchasing Power Parity and Monetary Models of Exchange Rates Explain the difference between absolute and relative...

Purchasing Power Parity and Monetary Models of Exchange Rates

Explain the difference between absolute and relative PPP. Why might the latter be more realistic?

Solutions

Expert Solution

THE ABSOLUTE PPP

The absolute PPP is similar to the Law of One Price. The concept of the Law of One Price means that the prices of the same products in different countries should be equal when they’re measured in a common currency. Consider the dollar–British pound exchange rate. The absolute PPP indicates the following:

where $/£, PUS, and PUK indicate the dollar-British pound exchange rate, the price level in the U.S., and the price level in the U.K., respectively. Note that the absolute PPP can also be shown as the equality of the price levels in both countries where, using the dollar-British pound exchange rate (E), the U.K. price level is expressed in dollars:

PUS = PUK x E

Therefore, for the absolute PPP to hold, the dollar–British pound exchange rate should reflect the ratio of the price levels in the U.S. (PUS) and the U.K. (PUK).

THE RELATIVE PPP

The relative PPP, on the other hand, indicates that the changes in the dollar–British pound exchange rate reflect the changes in the ratio of the U.S. and U.K. price levels (PUS and PUK):

Note the difference between the absolute and relative PPP. The absolute PPP indicates that the exchange rate has to reflect the ratio of two countries’ price levels. However, this is not easy.

In reality, there are market imperfections such as nontransferable inputs, transportation costs, tariffs, quotas, and so forth. Therefore, the relative PPP takes these market imperfections in consideration and relaxes the relationship between the exchange rate and the price levels of two countries. It does so by considering the relationship between the changes in the exchange rate and the changes in the ratio of the price levels.

All the relative PPP requires is the changes in the exchange rate equal the changes in the ratio of the price level.


Related Solutions

Purchasing Power Parity and Monetary Models of Exchange Rates What is Balassa-Samuelson? Explain how comparative advantage,...
Purchasing Power Parity and Monetary Models of Exchange Rates What is Balassa-Samuelson? Explain how comparative advantage, productivity, and domestic labor markets interact to generate this effect. Explain how this effect would change if all goods were tradable.
Purchasing Power Parity and Monetary Models of Exchange Rates How does the Dornbusch overshooting model indicate...
Purchasing Power Parity and Monetary Models of Exchange Rates How does the Dornbusch overshooting model indicate exchange rate volatility and large exchange rate movements? What problems may this create based on the role of expectations on current exchange rate movements due to monetary policy, and the role of exchange rate movements in asset prices?
explain the difference between the real exchange rate and the purchasing power parity(PPP) exchange rate, and...
explain the difference between the real exchange rate and the purchasing power parity(PPP) exchange rate, and discuss a situation in which you would use each of these different exchange rates.
7.Relative purchasing power parity applications             a.Define relative purchasing power parity b.Show the relationship between relative...
7.Relative purchasing power parity applications             a.Define relative purchasing power parity b.Show the relationship between relative purchasing power parity and the inflation rates in the two countries for which the spot exchange rate is also available. c.What is the difference between absolute and relative purchasing power parity?
What is purchasing power parity? Why might exchange rates deviate from purchasing power parity?
What is purchasing power parity? Why might exchange rates deviate from purchasing power parity?
1. Explain the two concepts of absolute and relative purchasing power parity. Do you believe that...
1. Explain the two concepts of absolute and relative purchasing power parity. Do you believe that either absolute and/or relative PPP hold? 2. Why does the carry trade offer such attractive returns?
Explain the purchasing power parity theory of exchange rates, using the euro-dollar exchange rate as an...
Explain the purchasing power parity theory of exchange rates, using the euro-dollar exchange rate as an example.
Covered and uncovered interest rate parity, Purchasing Power Parity (25) Explain the difference between the covered...
Covered and uncovered interest rate parity, Purchasing Power Parity (25) Explain the difference between the covered and the uncovered interest rate parity. What is the underlying idea behind these concepts? How does it relate to the Purchasing Power Parity and what are the differences? (10) Suppose the one-year interest rate in the US is 5.5% and in Germany is 6.0%. The dollar per Euro exchange rate is 1.20. What is the current forward exchange rate on a 1-year contract? (5)...
What are the theoretical problems with purchasing power parity theory in determining exchange rates?
What are the theoretical problems with purchasing power parity theory in determining exchange rates?
Exchange rates are affected by the law of one price and purchasing power parity (PPP) in...
Exchange rates are affected by the law of one price and purchasing power parity (PPP) in the long-run. Exchange rates are affected by the interest-rate parity condition in the short-run (Interest rate on domestic bond = Interest rate on foreign bond minus Expected appreciation of the domestic currency). What do these mean?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT