Exchange-Rate Misalignment and Realignment

Exchange-rate valuation gaps, short-run overshooting, official parity changes, and currency redenomination.

Exchange-rate misalignment and realignment describe different ways a currency can diverge from, or be moved toward, a reference value. The distinction matters: an estimated valuation gap is not the same as a temporary market overshoot, and neither is the same as an official change to a fixed central rate.

Start with Exchange Rate Misalignment for the measurement problem. Its companion pages explain overvaluation and undervaluation without treating either estimate as an observable fact.

Use Exchange Rate Overshooting for a short-run market response that moves beyond its eventual level. Use Exchange Rate Realignment for a change to an official parity or central rate. Currency Redenomination is different again: it rescales the unit of account rather than changing purchasing power by itself.

Questions These Pages Answer

  • Which exchange-rate measure and quotation convention is being used?
  • Is the reference value estimated from prices, trade, external sustainability, or a broader model?
  • Is the observed movement a market price change or an official policy action?
  • How would the change affect cash flows, foreign-currency debt, hedges, and reported results?
  • How sensitive is the conclusion to the model, base period, weights, and assumptions?

Exchange-rate assessments are uncertain and jurisdiction-specific. These pages provide financial education, not a currency forecast or a recommendation to trade, hedge, borrow, or invest.

In this section

Choose a subsection first. Deeper term pages live inside each subsection, which keeps large topic hubs readable.

Currency Redenomination

A currency unit is rescaled at a fixed conversion factor without changing real purchasing power solely because of the conversion.

Exchange Rate Misalignment

The observed real exchange rate differs from a model-based level consistent with selected fundamentals, policies, or external balance.

Exchange Rate Overshooting

A currency's immediate response exceeds its eventual long-run adjustment, creating a temporary reversal path after a shock.

Exchange Rate Realignment

An official change to one or more central rates, parities, or exchange-rate bands in a fixed or managed currency arrangement.

Overvalued Currency

A currency is estimated to be stronger than a model-based level consistent with selected fundamentals or external balance.

Undervalued Currency

A currency is estimated to be weaker than a model-based level consistent with selected fundamentals or external balance.

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