Why currency appreciation matters
It changes foreign-asset returns, import prices, exporter competitiveness, inflation, and debt service.
How it is applied
Investors state pair and direction and combine currency with local-asset return.
Portfolio example
USD/JPY falls from 150 to 140, meaning yen appreciates against the dollar despite the lower quote.
How to interpret it
Appreciation is always relative and simultaneous with depreciation of the other currency.
Limitations and common misconceptions
Quotation direction, intervention, controls, and illiquidity can confuse measurement.
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