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Understanding HANK: insights from a PRANK

Sushant Acharya () and Keshav Dogra ()

No 835, Staff Reports from Federal Reserve Bank of New York

Abstract: We show analytically that whether incomplete markets resolve New Keynesian “paradoxes” depends primarily on the cyclicality of income risk, rather than marginal propensity to consume (MPC) heterogeneity. Incomplete markets reduce the effectiveness of forward guidance and multipliers in a liquidity trap only with procyclical risk. Countercyclical risk amplifies these “puzzles.” Procyclical risk permits determinacy under a peg; countercyclical risk generates indeterminacy even under the Taylor principle. MPC heterogeneity leaves determinacy and paradoxes qualitatively unaffected, but can change the sensitivity of GDP to interest rates. By affecting the cyclicality of risk, even “passive” fiscal policy influences the effects of monetary policy.

Keywords: New Keynesian; incomplete markets; monetary and fiscal policy; determinacy; forward guidance; fiscal multipliers (search for similar items in EconPapers)
JEL-codes: E21 E30 E52 E62 E63 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-dge, nep-mac and nep-mon
Date: 2018-02-01, Revised 2018-08-01
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4) Track citations by RSS feed

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