IMF-寻找工资增长：对“新机器时代”的政策回应（英）-2024.1-81页_3mb

Summary of "Searching for Wage Growth: Policy Responses to the 'New Machine Age'"

• Introduction: The paper addresses wage stagnation in advanced economies, linked to automation and advancements in technology like AI. It introduces "robot" capital as a broad factor encompassing robots, AI, and related technologies to model these effects.

• Methodology: A general equilibrium model is used, featuring low-skill, high-skill labor, and capitalists. The model incorporates policies like corporate tax cuts, infrastructure investment, and education spending. Substitution elasticities between "robot" capital and labor are empirically estimated, showing high substitutability, which validates the model's predictions.

• Key Findings:

  • Corporate Tax Cuts (CTC): Boost GDP but exacerbate inequality, with low-skill wages declining in highly substitutable "robot" scenarios.
  • Infrastructure Investment (II): Always outperforms CTC in reducing underinvestment and increasing low-skill wages, with stronger effects when returning infrastructure.
  • Education Investment (IE): Significantly increases low-skill wages and GDP, especially with high substitutability, and often surpasses CTC and II in welfare when policies favor future gains and include distributional weights for low-income groups.

• Implications: Policies must account for technological substitutability. IE is recommended for sustainable growth, while CTC and II are less effective under automation. High substitution elasticities emphasize the need for rethinking traditional policy impacts in a technology-driven economy.