Micro Jumps, Macro Humps: Monetary Policy and Business Cycles in an Estimated HANK Model

Working Paper: NBER ID: w26647

Authors: Adrien Auclert; Matthew Rognlie; Ludwig Straub

Abstract: We estimate a Heterogeneous-Agent New Keynesian model with sticky household expectations that matches existing microeconomic evidence on marginal propensities to consume and macroeconomic evidence on the impulse response to a monetary policy shock. Our estimated model uncovers a central role for investment in the transmission mechanism of monetary policy, as high MPCs amplify the investment response in the data. This force also generates a procyclical response of consumption to investment shocks, leading our model to infer a central role for these shocks as a source of business cycles.

Keywords: Monetary Policy; Business Cycles; HANK Model

JEL Codes: E21; E22; E32; E43; E52; E70


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Investment responsiveness (G11)Cumulative output response (C69)
Monetary policy shocks (E39)Investment (G31)
Investment shocks (E22)Consumption dynamics (E21)
High MPCs (E49)Procyclical response of consumption to investment shocks (E20)
Investment shocks (E22)Business cycles (E32)
Investment responsiveness (G11)Overall impact of monetary policy (E52)

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