Category Archives: exchange rates

How Long the Dollar Upswing?

One of the seminal empirical exchange rate papers is Charles Engel‘s and Jim Hamilton‘s “Long swings in the exchange rate: are they in the data and do markets know it?” (AER, 1990). Think about it – while one often can’t reject the null hypothesis of a random walk in the exchange rate (using typically low-powered tests), the typical floating exchange rate sure doesn’t look like a random walk. What does a Markov switching model applied to the US broad trade weighted real value of the US dollar (instead of bilateral against Deutsche mark, French franc, British pound).

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