Why purchasing power parity matters
PPP offers a valuation anchor, but currencies can remain far from it for years.
How it is applied
Analysts compare price indices or standardized baskets and adjust for inflation differentials.
Portfolio example
If a basket costs $100 and 12,000 units elsewhere, implied PPP is 120 units per dollar.
How to interpret it
A currency below PPP may appear undervalued, not guaranteed to appreciate.
Limitations and common misconceptions
Transport, taxes, services, productivity, capital flows, and index differences prevent exact parity.
Sources and further reading
- Triennial Central Bank Survey of Foreign Exchange and OTC Derivatives MarketsBank for International Settlements
- Exchange RatesInternational Monetary Fund
- Currency Exchange RatesCFA Institute