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Does demand noise matter? Identification and implications

Kenza Benhima () and Céline Poilly

No 14365, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: We assess the role of demand noise (excessive optimism or pessimism about demand) together with supply noise (excessive optimism or pessimism about supply). To do so, we propose a methodology to decompose business cycles into supply, demand, supply noise and demand noise shocks, using a structural vector autoregression model. Key to our identification of both supply noise and demand noise is the use of sign restrictions on survey expectation errors about output growth and about inflation. We show that demand-related noise shocks have a negative effect on output and contribute substantially to its fluctuations. Monetary policy and private information seem to play a key role in the transmission of demand noise shocks.

Keywords: Business cycle; Information Friction; Noise shock; SVAR with sign restrictions (search for similar items in EconPapers)
JEL-codes: C32 D82 E31 E32 (search for similar items in EconPapers)
Date: 2020-01
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