Assume a Keynesian IS-LM model with flexible exchange rates.Also assume that Australia's main trading partner is the U.S. Suppose the U.S embarks on expansionary monetary policy. i. What is the effect of U.S expansionary monetary policy on Australia's real exchange rate in the short run, assuming no change in Australia's policies?[1 mark] ii. What is the effect of U.S expansionary monetary policy on Australia's nominal exchange rate in the short run and in the long run?[1 mark]