This paper addresses a key puzzle in international finance: whether exchange rates follow a random walk or exhibit predictable patterns. We demonstrate that exchange rates can possess a unit root while maintaining substantial predictability over certain horizons. Our model combines a stochastic...

This paper develops G3MOD, a semi-structural gap-trend model designed for frequent external sector forecasts crucial in macroeconomic forecasting. Focused on the G3 economies (US, Euro Area, and China) and the rest of the world, G3MOD leverages insights from central banks' policy models, to...

This paper examines the impact of Dollar exchange rate volatility on firm productivity in Emerging Markets economies (EMs). Using firm level data covering 16 EMs over the period 1998 -2019, the paper shows that dollar exchange rate volatility reduces firm productivity growth. Exploring channels,...

In this paper we extend the BEER (Behavioral Equilibrium Exchange Rate) approach which identifies an estimated equilibrium relationship between the real exchange rate and economic fundamentals. Here the economic fundamentals are decomposed using Johansen cointegration methods into transitory and...

We develop a theory-based model of equilibrium exchange rates incorporating factors that have been found to matter empirically. The model provides insights into how variables should be measured and what are appropriate cross-country restrictions. We estimate this model using a panel of 12...

We show the importance of a dynamic aggregation bias in accounting for the PPP puzzle. We prove that established time-series and panel methods substantially exaggerate the persistence of real exchange rates because of heterogeneity in the dynamics of disaggregated relative prices. When...