Australia and the United States produce white and red wines. Current domestic prices for each wine are given in the following table: AUSTRALIA UNITED STATES White wine 5 AU$ 10 US$ Red wine 10 AU$ 15 US$. Domestic prices are given in the following table: Suppose the exchange rate is 1 AU$ = 1 US$. a. If the price ratios within each country reflect resource use, which country has a comparative advantage in the production of red wine? white wine? b. Assume that there are no other trading partners and that the only motive for holding foreign currency is to buy foreign goods. Will the current exchange rate lead to trade flows in both directions between the two countries? Explain. c. What adjustments might you expect in the exchange rate? Be specific. d. What would you predict about trade flows between Australia and the United States after the exchange rate has adjusted?