<p>1"A New&nbsp;&nbsp; Approach to the Economic Analysis of Nonstationary Time Series&nbsp; and the Business Cycle," Econometrica, March 1989</p><p>2&nbsp;Hamilton,&nbsp;&nbsp; "Rational Expectations Econometric Analysis of Changes in Regime:&nbsp;&nbsp;&nbsp; An Investigation of the Term Structure of Interest Rates," Journal<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; of Economic Dynamics and Control, June 1988</p><p>3"Long&nbsp; Swings in the Exchange Rate: Are They in the Data and Do Markets&nbsp;&nbsp; Know It?" by Charles Engel and James D. Hamilton (AER, Sept. 1990).</p>