Learning Trend Inflation – Can Signal Extraction Explain Survey Forecasts?
Steffen Henzel
No 55, ifo Working Paper Series from ifo Institute - Leibniz Institute for Economic Research at the University of Munich
Abstract:
It can be shown that inflation expectations and associated forecast errors are characterized by a high degree of persistence. One reason may be that forecasters cannot directly observe the inflation target pursued by the central bank and, hence, face a complicated forecasting problem. In particular, they have to infer whether the observed movement of the inflation rate is due to a permanent change of policy parameters or whether it is the result of a transient shock. Consequently, it is assumed that agents behave like econometricians who filter noisy information by estimating an unobserved components model. This constitutes the trend learning algorithm employed by the forecaster. To examine whether this is a valid assumption, I fit a simple learning model to US survey expectations. The second part contains an out-of-sample forecasting experiment which shows that learning by signal extraction matches survey measures closer than other standard models. Moreover, it turns out that a weighted average of different expectation formation processes with a prominent role for signal extraction behaviour is well suited to explain survey measures of inflation expectations.
JEL-codes: C32 C53 E31 E37 (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (4)
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Persistent link: https://EconPapers.repec.org/RePEc:ces:ifowps:_55
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