Could you please clarify the current relationship between the Australian Dollar (AUD) and the United States Dollar (USD)? Is there a fixed exchange rate mechanism in place that pegs the AUD directly to the USD? If so, what are the specific details surrounding this peg? Alternatively, if the AUD is not pegged to the USD, how does its value fluctuate relative to the USD and what factors influence these movements? Understanding the relationship between these two currencies is crucial for investors and businesses operating in both economies.