Choose two theoretical models (e.g. Interest Rate Parity, Purchasing Power Parity, Balance of Payments, etc) that affect exchange rates, review the models for the determination of the AUD/USD exchange rate. Later develop a multifactor model based on your chosen variables and estimate the model based on historical data. Use your model to generate the AUD/USD forecast for the next quarter. Explain your data (include time period/frequency employed), methods, and results for your exchange rate forecasts?