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This summary is machine-generated.

This study introduces risks into a government debt model, preserving Barro's advice for stable tax rates and debt-to-GDP ratios. It also suggests insuring primary surplus risk using Shiller macro securities.

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Area of Science:

  • Economics
  • Financial Markets
  • Public Finance

Background:

  • The normative model of tax rates and debt/GDP dynamics by R. J. Barro (1979) provides a foundational framework.
  • Incorporating risk and market mechanisms is crucial for realistic economic modeling, as suggested by Arrow (1964) and Shiller (1994).

Purpose of the Study:

  • To develop a stochastic version of Barro's normative model.
  • To integrate risk and financial markets for trading these risks into the existing framework.
  • To analyze the implications for government fiscal policy, specifically tax rates and debt dynamics.

Main Methods:

  • Stochastic modeling approach.
  • Extension of Barro's normative model by incorporating financial market principles.
  • Application of concepts from Arrow (1964) and Shiller (1994) regarding risk management.

Main Results:

  • The modified model preserves Barro's prescriptions for constant debt-to-gross domestic product (GDP) ratio and tax rates over time.
  • The study prescribes government insurance against primary surplus risk.
  • This insurance is to be achieved by trading Shiller macro securities each period.

Conclusions:

  • A stochastic framework can enhance traditional fiscal policy models.
  • Governments can manage fiscal risks by actively participating in macro security markets.
  • Maintaining fiscal stability requires both constant policy parameters and active risk management.