CHAPTER 5 What Determines Exchange Rates?
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The Variability of Exchange Rate
Three types of variability after early 1970s. • Long-term trends • Medium-term trends (which can be counter to the long-term trends) • Short-term trends
A country with a relatively low inflation rate will have an appreciating currency (an increasing nominal-exchange-rate value of its currency).
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Figure 5.1, Panel A
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Figure 5.1, Panel B
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In the Long run: Purchasing Power Parity
· Changes over time (relative PPP):
From time 0 to time t: