Does a Weaker Won Always Increase Exporters’ Profits?
Assess a rise in the won–dollar exchange rate through export revenue, import costs, foreign-currency debt, and settlement timing. Calculate net dollar exposure to avoid overstating the benefits.
A rise in the won–dollar exchange rate increases the won value of the same dollar revenue, but it can also raise import costs and the burden of dollar debt. To judge the direction of earnings, look beyond the export share of sales to the difference between dollar inflows and outflows, actual settlement dates, and hedging contracts.
Separate revenue and cost currencies first
The Korean search term for the US dollar exchange rate usually refers to the won–dollar rate, but analysis should begin by confirming that the quote is in won per US dollar. A large share of overseas sales alone does not establish exchange rate sensitivity. An overseas plant that sells in local currency and pays local labor and raw-material costs has a different structure from a company that manufactures in Korea and exports in dollars. Record production locations, invoicing currencies, raw-material payment currencies, and wage currencies separately in your analysis. Dollar revenue minus dollar costs provides an initial approximation. However, even suppliers of raw materials contracted in won may pass exchange rate increases through to prices, so distinguish contractual currency from economic exposure.
Keep average and closing exchange rates separate
The exchange rates during the period in which transactions occur matter when explaining a quarter’s revenue, while conditions at the reporting date matter when examining the carrying amounts of foreign-currency receivables and payables. IAS 21 covers foreign-currency transactions and the translation of foreign operations, making it a starting point for separating operating performance from translation effects in the income statement. If the exchange rate jumps on the last day of the quarter, applying that level to the entire quarter’s revenue overstates the effect. In industries where orders, revenue recognition, and cash collection are several months apart, distinguish the exchange rates at each stage and the maturities of any hedges.
Do not turn sensitivity disclosures into operating profit forecasts
Exchange rate sensitivities in financial risk notes are based on financial assets and liabilities held and assumptions chosen by the company. They are not the same as a business forecast covering all future revenue and competitors’ pricing responses. First check the scope of the analysis, whether the figures are before or after tax, and whether they include other comprehensive income. Actual earnings estimates also require consideration of pressure to lower selling prices and changes in demand. If exchange rates lift won revenue while sales volumes fall, won-denominated growth alone is insufficient evidence of improved competitiveness.
Worked example
Hypothetical example: Assume dollar revenue of $10 million and dollar raw-material costs of $6 million are fixed for the same period. If the exchange rate rises from KRW 1,300 to KRW 1,400 per dollar, the simple conversion difference on the $4 million net dollar inflow is KRW 400 million. Treating the entire KRW 1 billion increase in translated revenue as additional profit omits the KRW 600 million increase in raw-material costs. This calculation excludes hedging, taxes, changes in sales volume, and foreign-currency debt.
What to check
- Have you distinguished overseas sales from sales actually invoiced in dollars?
- Have you separated the currencies of raw materials, labor costs, and borrowings?
- Have you checked which items use average rates and which use closing rates?
- Have you separately reviewed future transactions excluded from the sensitivity note?
Sources and primary materials
This is educational material about research methods. For an actual company decision, verify the filings and primary sources for the relevant period.