This case study discusses the Reserve Bank of Australia's cash rate decision, objectives of monetary policy, functions of money and RBA, and how an increase or decrease in cash rate affects household consumption, business investment, GDP, inflation, and housing market. It also explains why RBA compares domestic and global macroeconomic indicators and justifies RBA's decision to maintain the cash rate at 1.50 percent. The study uses the money market equilibrium model and monetary transmission mechanism to illustrate how an increase or decrease in cash rate affects the economy.