Answer:
1 dollar = 1,166.35 wons
Explanation:
In order to answer this question, we must make use of the Interest
Rate Parity condition, which states that the expected return on
investment in dollar securities should equal the expected return on
investment in foreign currency-denominated securities.
Let's see what happens if we invest the same $1 in Korean securities.
In order to buy Korean government securities, we must first convert the $1
into wons. So we get W1,200. We invest the W1,200 in Korean government
securities. Since the interest rate is 4%, we'll have
1200*(1.04)=W1,248.
Therefore, investing $1 today in Korean securities gives W1,248 in one
year. The interest rate parity, then, implies that this 1,248 wons
should be equal to the 1.07 dollars, so that the return is the same
irrespective of where we make the investment.