We construct a noisy information model of central bank communication on future inflation rates and highlight an informational friction that plays a key role in explaining several empirical properties of firms' inflation expectations. Using a survey of Japanese firms' inflation expectations, we document new empirical facts related to the size of firms and their inflation expectations. We observe a persistent deviation of expectations from the central bank's inflation target and find that the deviation is monotonically increasing in firm size, while the degree of the forecasting imprecision, responsiveness to actual inflation, and the heterogeneity in firms' expectations are monotonically decreasing in firm size. To reconcile these empirical regularities, we construct a dynamic model of inflation expectation formation by Bayesian firms where the central bank's inflation forecast serves as a noisy public signal of future inflation rates and propose an informational friction in...
ADACHI Ko, HIRAKI Kazuhiro (Bank of Japan)
Research LAB No.21-E-1, June 25, 2021
Keywords: Inflation expectations; Survey-based inflation expectations; Breakeven inflation rate
JEL Classification: C32, D84, E31, E43, E52, G12
Contact: kazuhiro.hiraki@boj.or.jp (HIRAKI Kazuhiro)
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