国际清算银行-利润驱动型通货膨胀的货币政策（英）-2024.2-51页_1mb

Monetary Policy with Profit-Driven Inflation: Summary

Key Context

The paper argues that the current inflation surge is driven by unit profits rather than unit labor costs, unlike the 1970s oil shocks. It focuses on energy price shocks and their impact using a New Keynesian model extended with reservation profits.

Main Model Features

• Introduces reservation profits where firms operate only if current profits are sufficient.
• Energy price shocks are inflationary due to direct consumption effects and the retrenchment of sticky-price firms.

Primary Findings

1. Inefficient Supply Response: Energy price shocks lead to excessive firm retrenchment, causing high inflation because sticky-price firms ignore social costs.
2. Optimal Policy: Monetary policy follows a pecking order: tighten to insulate supply, then split shock burden between supply and demand as needed.
3. Fiscal Redistribution: Budget-neutral tax and subsidy schemes can restore monetary policy effectiveness by supporting less profitable firms.

Conclusion

Profit-driven inflation arises from firms' decisions ignoring external costs, and optimal monetary policy must account for price stickiness. Fiscal redistribution tools enhance policy response in severe shocks.