Dynamic Adverse Selection: A Theory of Illiquidity, Fire Sales, and Flight to Quality

Working Paper: NBER ID: w17876

Authors: Veronica Guerrieri; Robert Shimer

Abstract: We develop a dynamic equilibrium model of asset markets affected by adverse selection. There exists a unique equilibrium where better assets trade at higher prices but in less liquid markets. Sellers of high-quality assets can separate because they are more willing to accept a lower trading probability. As a result, the emergence of adverse selection generates a drop in liquidity. It may also lead to a decline in the price-dividend ratio--a fire sale--and a flight to quality. Subsidies to purchasing assets may be Pareto improving and can reverse the fire sale and flight to quality.

Keywords: adverse selection; liquidity; fire sales; flight to quality

JEL Codes: D82; E44; G14


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
adverse selection (D82)decline in market liquidity (G10)
decline in market liquidity (G10)higher-quality assets trade at lower prices (G12)
adverse selection (D82)fire sales (G33)
fire sales (G33)decline in asset prices (G19)
adverse selection (D82)decline in expected revenue from sales of higher-quality assets (G19)
subsidies for purchasing assets (H25)improve liquidity (G33)

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