News versus sunspot shocks in a New Keynesian model
Lilia Karnizova ()
Economics - The Open-Access, Open-Assessment E-Journal, 2010, vol. 4, pages 1-27
Separately, news and sunspot shocks have been shown empirically to be determinants of changes in expectations. This paper considers both of them together in a simple New Keynesian monetary business cycle model. A full set of rational expectations solutions is derived analytically. The analytical characterization allows an explicit comparison of news about future monetary policy and sunspots. The key distinction between the shocks lies in their relation to the realized policy shock. If monetary policy is 'passive', both types of shocks affect model dynamics through forecast errors. The effect of the news on forecast errors is not unique, and the dynamics induced by news and sunspot shocks can be observationally equivalent. If monetary policy is 'active', the sunspots are irrelevant, and the model responses to the news shocks are unique. In both cases, news shocks strengthen the endogenous propagation of the model, since anticipation of future changes prolongs agents' reaction.
Keywords: News shocks; sunspots; expectations; monetary policy; indeterminacy (search for similar items in EconPapers)
JEL-codes: E32 E47 E52 (search for similar items in EconPapers)
References: View references in EconPapers View complete reference list from CitEc
Citations View citations in EconPapers (3) Track citations by RSS feed
Downloads: (external link)
Working Paper: News versus sunspot shocks in a New Keynesian model (2010)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: http://EconPapers.repec.org/RePEc:zbw:ifweej:201019
Access Statistics for this article
Economics - The Open-Access, Open-Assessment E-Journal is currently edited by Dennis J. Snower
More articles in Economics - The Open-Access, Open-Assessment E-Journal from Kiel Institute for the World Economy Contact information at EDIRC.
Series data maintained by ZBW - German National Library of Economics ().