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Consider the spot exchange rate at date denoted , defined by:
Let be the risk-free rate in USD and the risk-free rate in EUR over the period . Assume no arbitrage opportunities exist.
An FX forward is a contract that fixes at date a rate at which two counterparties commit to exchange, at a future date , one currency against the other. Here, the contract stipulates: at time , exchange 1 USD against EUR. No cash flows occur at inception.
Question: Using a replication strategy, derive the forward rate .