2024-08-12-欧洲央行-能源价格冲击_货币政策和不平等（英）_51页_1mb

Energy Price Shocks, Monetary Policy, and Inequality

Authors: Alina Bobasu, Michael Dobrew, Amalia Repele
Publication: ECB Working Paper No. 2967

Abstract

Energy price shocks, exacerbated by events like the COVID-19 recovery and the Ukraine invasion, have significant recessionary effects in energy-importing economies. This paper employs a heterogeneous-agent New Keynesian (HANK) model calibrated to Euro Area data to analyze aggregate and distributional impacts. Key findings include: energy shocks reduce consumption through both direct and indirect channels; monetary policy responses shape these outcomes, with active policies (elevating real rates) amplifying recessions but favoring high-wealth households; forecast rules with muted rate responses mitigate negative effects. Low-wealth households, constrained by limited savings and high energy consumption, bear the brunt of the shock.

Methodology

• Model: A small open-economy HANK model with non-homothetic preferences, input complementarities, and a Taylor-rule based monetary policy.
• Calibration: Euro Area data for consumption baskets, wealth distribution, and factor inputs; calibrated to match empirical moments.
• Key Features: Incorporates energy as both a consumption good and production factor; heterogeneous agents exhibit wealth-dependent consumption patterns.

Key Findings

• Aggregate Effects:

  • Energy shocks reduce consumption and output; active monetary policy (e.g., reacting to inflation) worsens aggregate outcomes by contracting demand and delaying recovery.
  • Forecast rules (e.g., muted real rate responses) stabilize the economy by partially ignoring anticipated inflation.

• Distributional Effects:

  • Low-wealth households (e.g., bottom wealth quintile) experience larger consumption declines due to falling labor income and direct price effects.
  • High-wealth households benefit from higher returns on savings under active policies but are less affected by pass-through effects.

• Monetary Policy Role:

  • Active policies amplify inequality; passive policies (fixed real rate) redistribute some burden but are regressive.
  • Forecast rules reduce inequality and stabilize outcomes when sufficiently passive.

Conclusion

Energy price shocks are regressive, disproportionately harming low-wealth households. Monetary policy frameworks must balance inflation control with distributional impacts. HANK models highlight the importance of real rate responses and the need for targeted policy rules to minimize adverse effects on inequality and aggregate stability.