Liquidity When It Matters Most: QE and Tobin's Q

Working Paper: CEPR ID: DP8511

Authors: John Driffill; Marcus Miller

Abstract: How and why do financial conditions matter for real outcomes? The ?workhorse model of money and liquidity? of Kiyotaki and Moore (2008) shows how--with full employment maintained by flexible prices--shifting credit constraints can affect investment and future aggregate supply. We show that, when the flex-price assumption is dropped, an adverse but temporary liquidity shock can rapidly lead to Keynesian-style demand failure. Optimistic expectations may speed recovery, but simulation results suggest that prompt liquidity infusion by the central bank--i.e. Quantitative Easing--is needed to check prolonged recession.

Keywords: Credit constraints; Liquidity shocks; Temporary equilibrium

JEL Codes: B22; E12; E20; E30; E44


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
credit constraints (E51)investment (G31)
credit constraints (E51)future aggregate supply (Q11)
adverse liquidity shock (E44)contraction in output (E23)
liquidity shock (E44)investment (G31)
liquidity shock (E44)consumption (E21)
liquidity infusion by central bank (E52)avert prolonged recession (E65)
liquidity shock (E44)output collapse (E23)

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