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Board of Governors of the Federal Reserve System

06/22/2026 | Press release | Distributed by Public on 06/22/2026 09:23

Fiscal Policy, Portfolio Frictions, and International Transmission

June 2026

Fiscal Policy, Portfolio Frictions, and International Transmission

Marcos Mac Mullen

Abstract:

I study the international transmission of fiscal policy and its impact on the real exchange rate (RER) and net exports. I document that periods of high government debt are strongly associated with a depreciated RER and subsequent increases in net exports. I present causal evidence that debt-financed fiscal expansions transmit primarily through deviations from uncovered interest parity, leading to a depreciated RER and increases in net exports over time. I propose a model in which portfolio rebalancing frictions drive the international transmission of fiscal policy that explains the empirical evidence, and show that this mechanism generates dynamics consistent with the RER disconnect.

Keywords: International Business Cycles, Fiscal Policy, Exchange Rates, Trade Balance

DOI: https://doi.org/10.17016/IFDP.2026.1439

PDF: Full Paper

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