How Do Supply Shocks to Inflation Generalize? Evidence from the Pandemic Era in Europe

Working Paper: CEPR ID: DP18530

Authors: Viral Acharya; Matteo Crosignani; Tim Eisert; Christian Eufinger

Abstract: We document how the interaction of supply-chain pressures, heightened household inflation expectations, and firm pricing power contributed to the pandemic-era surge in consumer price inflation in the euro area. Initially, supply-chain pressures increased inflation through a cost-push channel and raised inflation expectations. Subsequently, the cost-push channel intensified as firms with high pricing power increased product markups in sectors witnessing high demand. Eventually, even though supply-chain pressures eased, these firms were able to further increase markups due to the stickiness of inflation expectations. The resulting persistent impact on inflation suggests supply-side impulses can generalize into broad-based inflation via an interaction of household expectations and firm pricing power.

Keywords: inflation expectations; market power; supply chain; euro area; generalized markup shock

JEL Codes: E31; E58; D84; L11


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
Supply chain pressures (L99)CPI growth (E31)
Supply chain constraints (L91)Higher prices for consumer goods (E31)
Heightened household inflation expectations (D19)Broader inflation (E31)
Supply chain constraints (L91)Heightened household inflation expectations (D19)
Inflation expectations (E31)Firms' pricing strategies (L11)
Firms' pricing power (L11)Increase in markups (D49)
Supply chain pressures (L99)Generalization of inflation (E31)
Household expectations (D19)Generalization of inflation (E31)
Firm behaviors (D21)Generalization of inflation (E31)

Back to index