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Optimal Government Spending in a Collateral-Constrained Small Open Economy

Author

Listed:
  • Masashige Hamano

    (Waseda University)

  • Yuki Murakami

    (Waseda University)

Abstract

This paper investigates the stabilization role of government spending in a collateral constrained small open economy. The economy is characterized by inefficiencies in borrowing decisions, resulting from pecuniary externalities and the amplification mechanism of the debt-deflation spiral. In this context, government spending serves to maintain financial stability, extending beyond the efficient provision of public goods. When the economy borrows up to its limit, the optimal response is fiscal stimulus, which mitigates the amplification of the debt-deflation mechanism. The optimal time-consistent policy prevents recessionary shocks from leading to a financial crisis accompanied by a drastic reversal of the current account. We show that an implementable government spending policy, which maintains a constant ratio to GDP, approximates the optimal policy and achieves a second-best outcome.

Suggested Citation

  • Masashige Hamano & Yuki Murakami, 2024. "Optimal Government Spending in a Collateral-Constrained Small Open Economy," Working Papers 2401, Waseda University, Faculty of Political Science and Economics.
    • Handle: RePEc:wap:wpaper:2401
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