Authors: Sushant Acharya and Keshav Dogra
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Staff Reports
Understanding HANK: Insights from a PRANK
Number 835
February 2018 Revised August 2018
February 2018 Revised August 2018
JEL classification: E21, E30, E52, E62, E63
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.
Author Disclosure Statement(s)
Sushant Acharya
The author declares that he has no relevant or material financial interests that relate to the research described in this paper.
Keshav Dogra
The author declares that he has no relevant or material financial interests that relate to the research described in this paper.
The author declares that he has no relevant or material financial interests that relate to the research described in this paper.
Keshav Dogra
The author declares that he has no relevant or material financial interests that relate to the research described in this paper.
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