Akira Numata-UIA Japan. Akira Numata, Credit Suisse (Tokyo), observes that the Y/$ spot rate has been holding steady, and both dollar and yen interest rates have remained relatively fixed over the past week. Akira wonders if he should try an uncovered interest arbitrage (UIA) transaction and thereby save the cost of forward cover. Many of Akira's research associates-and their computer models- are predict- ing the spot rate to remain close to V118.00/$ for the coming 180 days, Using the same data as in the previ- ous problem, analyze the UIA potential. a. Calculate how much profit Akira could make if his expectations prove correct. b. What is the risk he is taking? What if the spot rate in 180 days is V106.00/$