Depreciation
What is Depreciation?
Depreciation is a decrease in an asset's value, or a fall in one currency's value relative to another under a stated quote convention.
A weaker currency can raise local inflation and foreign-debt burden while improving some exporter revenues, so portfolio effects require balance-sheet and cash-flow analysis. Dashboards should not treat a negative spot contribution as the full economic result when company earnings or hedges respond in the opposite direction.
Policy intervention and capital controls can affect both quoted value and practical convertibility.
Risk systems should test both gradual weakening and discontinuous repricing with impaired convertibility.
Asset depreciation
Market depreciation means price declined over the selected period. It differs from accounting depreciation, which allocates asset cost over useful life. Investment loss depends on income, fees, currency, tax, and cash flows as well as price. Nominal decline can differ from real decline after inflation and from permanent impairment of underlying cash flow.
Currency depreciation
A currency depreciates relative to another when it buys less of that currency. If GBP/USD falls, pound depreciates against dollar. The dollar simultaneously appreciates against pound. Under fixed regimes, an official downward change is often called devaluation. Quote direction must be explicit to avoid reversing the interpretation.
Portfolio effect
Foreign-currency depreciation reduces the base-currency return of unhedged foreign holdings, all else equal, while hedge gains may offset it. Exporters can benefit through competitiveness or translated revenue, while importers and foreign-currency borrowers can suffer. Pass-through to inflation and profits depends on contracts, competition, policy, and economic slack.
Causes and risk
Interest expectations, inflation, growth, deficits, political events, intervention, flows, and global risk can drive weakness. Gradual depreciation can become a gap if confidence or convertibility changes. Carry strategies are vulnerable when a high-yielding currency depreciates sharply. Historical volatility and reserves alone cannot identify a safe loss limit.
Practical reporting
State the pair, direction, period, source, and nominal or real measure. Attribute local asset, currency, hedge, and cost. Stress foreign debt, collateral, inflation, and liquidity. Avoid describing depreciation as universally beneficial or harmful, and do not confuse an accounting charge, a lower portfolio balance from withdrawals, and a market-price decline.
Sources and further reading
- Currency Exchange Rates: Understanding Equilibrium Value, CFA Institute
- Currency Management: An Introduction, CFA Institute