The Mexican peso is quoted in direct terms at ‘‘¥28.74/MXN BID and ¥28.77/MXN ASK'' in Tokyo. The yen is quoted in direct terms in Mexico City at ‘‘MXN0.0341600/¥ BID and MXN0.03420/¥ ASK.''
a. Calculate the bid-ask spread as a percentage of the bid price from the Japanese and from the Mexican perspective.
b. Is there an opportunity for profitable arbitrage? If so, describe the necessary transactions using a ¥1 million starting amount. Take your profit in yen.