purchasing power parity;
long-memory dynamics;
long swings;
amplified shock response;
non-monotonic mean reversion;
D O I:
10.1016/S0261-5606(00)00037-1
中图分类号:
F8 [财政、金融];
学科分类号:
0202 ;
摘要:
The extraordinary difficulty in uncovering parity reversion in yen-based real exchange rates has often been ascribed to a missing trend variable. This study identifies an alternative explanation and shows that the puzzling behavior of real yen rates may stem from long-memory dynamics, which undermine unit-root tests in their ability to detect mean reversion. The long-memory findings are consistent with the long swings in yen exchange rates during the current float. Further analysis also reveals evidence of non-monotonic reversion toward parity. (C) 2001 Elsevier Science Ltd. All rights reserved. JEL classification: F31; F41.