One measure of a successful monetary policy is its ability to anchor expectations about future inflation rates. Financial crises, such as that of 2008-09, can be considered natural experiments that test this anchoring. The effects of the crisis on inflation expectations were largely temporary in the United States, but longer-lasting in the United Kingdom. That is surprising because the United Kingdom had a formal inflation target during this period. Expectations may have been affected more because inflation stayed above the central bank's target for extended periods following the crisis.
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