This paper examines the implications of inflation persistence for the inverted Fisher hypothesis that nominal interest rates do not adjust to inflation because of a high degree of substitutability between money and bonds. It is emphasized that the substitutability between nominal assets and capital renders the hypothesis inconsistent with the data when inflation persistence is high. Using a switching regression model, the analysis allows the reflection of inflation in interest rates to vary according to the degree of inflation persistence or forecastability. The hypothesis is supported by U.S. data only when inflation forecastability is below a certain threshold.
This paper elaborates the introduction of surveillance that gave the IMF broader responsibilities with respect to oversight of its members’ policies than existed under the par value system. The IMF’s purview has been broadened under the new system but, by the same token, its members are no longer obliged to seek its concurrence in changes in exchange rates. The continuing volatility of exchange rates, and their prolonged divergence from levels that appear to be sustainable over time, have been matters of growing concern.