Fiscal dominance, shocks, and the currency distribution of sovereign debt: the case of a small open economy

Juan Pablo Di Iorio

No 19, Young Researchers Working Papers from Universidad de San Andres, Departamento de Economia

Abstract: This study examines the effects of incorporating fiscal dominance, based on the Fiscal Theory of the Price Level, into a New Keynesian Small Open Economy (NK-SOE) model. This framework enables a comparison between the responses of an economy characterized by fiscal dominance and those of canonical NK-SOE models when faced with monetary or external shocks. Notable differences emerge in nominal variables, such as inflation rates and nominal devaluation, as well as in household consumption and the real exchange rate. I show that introducing fiscal dominance into an otherwise standard NK-SOE model can help explain two important puzzles in the literature:the “price puzzle” and the “exchange rate response puzzle.” Furthermore,the model is expanded to account for government debt issued in foreign currency, introducing a fiscal channel related to the currency composition of the government’s debt.Additionally, the structure of taxes and government expenditures—particularly fiscal revenues tied to the non-tradable sector—plays a significant role in shaping the economic response when the government issues debt in foreign currency.

Keywords: - (search for similar items in EconPapers)
JEL-codes: E31 E43 E62 F31 (search for similar items in EconPapers)
Pages: 32 pages
Date: 2025-07, Revised 2025-12
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Persistent link: https://EconPapers.repec.org/RePEc:sad:ypaper:19

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