This paper examines the role of foreign exchange (FX) reserves and other fundamental factors in explaining cross-country differences in foreign currency depreciation observed over the 2021-22 Federal Reserve monetary policy tightening cycle that led to a sharp appreciation of the US dollar....

We develop a simple quantitative New Keynesian model aimed at accounting for the recent sudden and persistent rise in inflation, with emphasis on the role of oil shocks and accommodative monetary policy. The model features oil as a complementary good for households and as a complementary input...