Taylor, Alan M.; Taylor, Mark P - C.E.P.R. Discussion Papers - 2004
how much the data deviated from theory, and the fruits of this research have provided a deeper understanding of how well …, in particular, have improved estimation. As deviations narrowed between real exchange rates and PPP, so did the gap … narrow between theory and data, and some degree of confidence in long-run PPP began to emerge again. In this respect, the …