It is argued that government policy could be greatly improved by the e
xistence of a gilts market 'window' on expected inflation. The indexed
gilts method for measuring expected inflation, developed by Levin and
Copeland (1993), is described and extended. This extended method is a
pplied to the 41 market days between 20 August 1992 and 15 October 199
2 in order to observe how the developing crisis associated with Britai
n's departure from the European Exchange Rate Mechanism affected real
interest rates, expected inflation and the inflation uncertainty premi
um. The estimates for this period demonstrate that it is technically p
ossible with the indexed gilts method to 'read' the financial markets'
forecast of the future path of inflation in the UK. In addition, the
estimates show quite clearly that the expected inflation path alters i
n response to external shocks and to subsequent policy reactions.