Concept

Deriving Expected Depreciation from Inflation Target Differentials

In a long-run equilibrium between two FlexIT economies, the expected rate of currency depreciation (δE\delta^E) can be inferred from their inflation targets. This reasoning involves two steps: first, the actual long-run depreciation rate (δ\delta) is equated to the difference between the home and foreign inflation targets (δ=πTπT\delta = \pi^T - \pi^{T*}). Second, based on the principle that market expectations align with actual outcomes over time, the expected depreciation is assumed to be approximately equal to this calculated rate (δEδ\delta^E \approx \delta). For instance, if the inflation differential implies a 2.5% depreciation, then δE\delta^E is also taken to be approximately 2.5%.

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Updated 2026-05-02

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