International Finance: FX Market, Parity Conditions, and Derivatives

Complete set of vocabulary flashcards covering key foreign exchange terminology, international parity theories, derivative structures, options mechanics, and interest rate and currency swaps.

Foreign Exchange (FX) Market

The global, $24\text{-hour}$ market where one country's currency is traded for another, operating continuously across major financial centers like London, New York, and Tokyo, with approximately $70\%$ of all trading conducted electronically.

Transfer purchasing power

A primary operational function of the FX market that facilitates the movement of monetary value across national borders (e.g., a U.S. firm purchasing euros to pay an overseas supplier).

Provide credit

A core function of the FX market that finances international merchandise trade through trade instruments such as letters of credit and bankers' acceptances.

Reduce FX risk

A primary function of the FX market focused on hedging against adverse currency fluctuations using financial derivative contracts.

Interbank market

The wholesale tier of the foreign exchange market where large financial institutions trade currency blocks typically valued at $1\text{ million}$ or more with one another.

Client market

The retail tier of the foreign exchange market where smaller-scale transactions take place between commercial banks and retail clients such as tourists, importers, and exporters.

Market makers

Large commercial banks and foreign exchange dealers that stand ready to buy and sell currencies at all times, earning revenue from the bid-ask spread.

Brokers

Intermediaries in the foreign exchange market that match currency buyers with sellers for a commission without trading for their own accounts or taking inventory risk.

Bid price

The exchange rate at which a foreign exchange dealer is willing to purchase currency from a market participant (the lower price in a quotation).

Ask price

The exchange rate at which a foreign exchange dealer is willing to sell currency to a market participant (the higher price in a quotation).

Bid-ask spread

The difference between the dealer's selling price and buying price ($\text{Spread} = \text{Ask} - \text{Bid}$), representing the transaction cost to the customer and the dealer's profit margin.

Spot transaction

An agreement to exchange currencies immediately, which standardly settles on the second business day following the trade date (known as the "value date").

Forward transaction

A customized agreement contracted today to exchange currencies at a specified exchange rate on a designated future date (e.g., $1$, $2$, $3$, $6$, or $12\text{ months}$ forward).

Swap transaction

A simultaneous agreement to buy and sell the same notional amount of a currency for two distinct settlement dates.

Non-Deliverable Forward (NDF)

A forward-like contract that settles in cash (typically in $\text{USD}$) based on the difference between the contracted rate and the prevailing spot rate, used primarily for non-convertible or restricted currencies (such as the Chinese yuan or Russian ruble) without physical currency delivery.

European terms

A foreign exchange quotation style expressing the number of units of foreign currency needed to purchase one U.S. dollar (e.g., \text{SF } 1.6000/\text{$}).

American terms

A foreign exchange quotation style expressing the U.S. dollar price of one single unit of foreign currency (e.g., \text{$}0.6250/\text{SF}).

Direct quote

An exchange rate quotation indicating the amount of domestic (home) currency required to purchase one unit of foreign currency (e.g., in the U.S., \text{$}1.2174/\text{€}).

Indirect quote

An exchange rate quotation indicating the amount of foreign currency required to purchase one unit of domestic (home) currency (e.g., in the U.S., \text{€}0.8214/\text{$}).

Cross rate

An exchange rate between two currencies that is calculated indirectly by referencing each currency's relationship with a common third currency (usually the U.S. dollar).

Triangular arbitrage

A riskless trading strategy undertaken when cross exchange rates among three currencies do not align, allowing a trader to cycle funds across the three markets and end with more money than originally started.

Forward premium

A condition where the forward exchange rate of a currency is higher than its spot rate, indicating that the market values the currency higher for future delivery than for immediate delivery.

Forward discount

A condition where the forward exchange rate of a currency is lower than its spot rate, indicating that the currency is valued lower for future delivery than for immediate delivery.

Law of One Price

The economic premise that in identical, competitive, frictionless markets, identical tradeable goods must sell for the same price everywhere once converted into a common currency.

Absolute Purchasing Power Parity (Absolute PPP)

The theory stating that standard composite market baskets of goods and services should cost the identical amount across different nations when converted at the prevailing spot rate (e.g., The Economist's Big Mac Index).

Relative Purchasing Power Parity (RPPP)

The parity theory stating that the expected percentage change in an exchange rate over time is determined by the inflation rate differential between the two nations: $S_1 = S_0 \times \frac{1 + \pi_{\text{top}}}{1 + \pi_{\text{bottom}}}$.

Nominal Effective Exchange Rate (NEER)

An index representing the trade-weighted average exchange rate of a domestic currency against a group of major trading partners' currencies, without adjusting for relative price level or inflation changes.

Real Effective Exchange Rate (REER)

A trade-weighted exchange rate index adjusted for relative inflation differentials, used as a measure of a country's international export competitiveness where $100$ represents parity, above $100$ indicates currency overvaluation, and below $100$ indicates undervaluation.

Exchange rate pass-through

The percentage proportion of an exchange rate movement that is passed along to the local currency price charged to foreign consumers: $\text{Pass-through \%} = \frac{\text{Actual price change}}{\text{Full price change}} \times 100$.

Fisher Effect

An economic relationship stating that a country's nominal interest rate equals its real interest rate plus anticipated inflation, expressed exactly as $(1 + i) = (1 + r)(1 + \pi)$ or approximately as $i \approx r + \pi$.

International Fisher Effect (IFE)

The parity relationship postulating that the expected change in the spot exchange rate between two currencies will be approximately equal to the difference in their nominal interest rates, meaning high-interest currencies are expected to depreciate.

Interest Rate Parity (IRP)

A no-arbitrage condition stating that the forward exchange premium or discount must equal the nominal interest rate differential between two currencies over that maturity: $F = S \times \frac{1 + i_{\text{top}} \times \frac{n}{360}}{1 + i_{\text{bottom}} \times \frac{n}{360}}$.

Covered Interest Arbitrage (CIA)

A risk-free investment strategy that exploits deviations from Interest Rate Parity by borrowing one currency, converting it at the spot rate, investing in another currency, and locking in the future conversion back via a forward contract.

Uncovered Interest Arbitrage (UIA)

A speculative investment strategy (carry trade) in which an investor borrows in a low-rate currency and invests in a high-rate currency without using a forward hedge, realizing profits only if the high-rate currency does not depreciate by more than the interest differential.

Unbiased predictor hypothesis

The proposition that the forward exchange rate is on average an accurate forecaster of the future spot exchange rate, meaning that forecasting errors average to zero over time.

Derivative

A financial instrument whose value is derived directly from the price, level, or performance of an underlying asset, benchmark, or index.

Currency futures contract

A standardized exchange-traded contract (traded on exchanges such as the IMM of CME) obligating the counterparties to buy or sell a specified volume of foreign currency at a predetermined price on a specified maturity date.

Initial margin

The mandatory initial deposit balance that a market participant must place into an exchange margin account when opening a futures position.

Maintenance margin

The mandatory minimum threshold balance that must remain in a futures margin account (typically approximately $75\%$ of initial margin) to keep the position open.

Marking to market

The daily settlement process in futures markets where account balances are credited or debited based on the daily gain or loss calculated from closing settlement prices.

Margin call

A notification issued by a broker requiring a futures trader to deposit additional funds sufficient to bring the margin account balance back up to the initial margin level after equity drops below the maintenance threshold.

Call option

A derivative contract granting the buyer (holder) the right, but not the obligation, to buy an underlying currency at a specified strike price within a stated time period.

Put option

A derivative contract granting the buyer (holder) the right, but not the obligation, to sell an underlying currency at a specified strike price within a stated time period.

Option strike price ($K$)

The set exchange rate at which the buyer of a call or put option possesses the contractual right to execute the purchase or sale of the underlying currency.

Option premium

The upfront market price paid by the option buyer to the option writer, composed of the option's intrinsic value and its time value.

American option

An option style granting the holder the right to exercise the contract at any time up to and including the expiration date.

European option

An option style granting the holder the right to exercise the contract only on the final expiration date.

In-the-money (ITM)

A status where an option has positive intrinsic value and exercising it immediately at prevailing spot rates would generate a positive cash payoff.

At-the-money (ATM)

A status where an option's strike price equals the current prevailing spot exchange rate of the underlying currency.

Out-of-the-money (OTM)

A status where an option has zero intrinsic value because immediate exercise would yield an unfavorable exchange rate relative to the market spot rate.

Repricing risk

The risk that interest rates change at contract renewal or rate reset dates on floating-rate debt instruments, causing debt servicing costs to rise.

Credit (roll-over) risk

The risk that a lender refuses to refinance or renew an existing loan at maturity, or does so only on significantly less favorable credit terms.

Forward Rate Agreement (FRA)

A cash-settled, over-the-counter contract locking in an agreed interest rate on a specified notional principal for a designated future interval, where principal is not exchanged.

Interest rate swap

A contractual agreement between two counterparties to exchange interest payment streams (typically fixed-rate for floating-rate) denominated in the same currency over a agreed horizon based on a non-exchanged notional principal.

Currency swap

A contract between two parties involving the exchange of interest rate cash flows and principal payments across two distinct currencies, where principal amounts are standardly exchanged both at initiation and at maturity.