Monetary Policy and the Current Account in Latin America: Revisiting the Mundellian Paradigm

How does the current account respond to a monetary policy shock? The answer to this perennial question is theoretically ambiguous and empirical evidence is particularly scarce in emerging markets due to challenges in identifying exogenous policy variation. I construct a novel dataset of monetary policy shocks using analysts’ forecasts of policy rate decisions for an unbalanced panel of five emerging market economies in Latin America during 1999-2024. I estimate impulse response functions using local projections and find that a monetary tightening shock leads to a “J curve” pattern in the current account: a short-run contraction followed by a medium-run expansion. The response is heterogeneous in the cross-section and depends on the strength of the exchange rate appreciation resulting from the monetary contraction and the country’s export-import structure. The panel estimation results show that exports and imports exhibit a hump-shaped pattern and decline by 4.5 and 5.9 per cent, respectively, as a result of a one-percentage-point policy tightening shock. The results are robust to using alternative measures of high-frequency monetary shocks.