Fundamentals,regime shifts,and dollar behavior in the 1980s

I provide an economic interpretation of the long swings of the dollar in the 1980s. I use the fully modified estimator method to analyze the long-run behavior of the dollar/sterling exchange rate over the period 1979–1989, detecting a structural shift in February–March 1985. In the 1979–1985 subperiod economic agents have reacted to a reduced set of fundamentals only, a finding that might corroborate the irrational behavior interpretation of the dollar upswing. In the 1985–1989 subperiod economic agents have associated the equilibrium value of the dollar with the behavior of a more balanced set of fundamentals.