Given the slowdown in Australia's economy in recent years, comment on how the valuations in dividend-discount model (DDM) and discounted free-cash flow method (DCF)change if: (1) risk-free rate decreases by 1%; (2) growth rate decreases by 1%; (3) WACC decreases by 1%. Provide a general assessment on the sensitivity of the estimates. In other words, does the valuation estimates being more or less sensitive to the changes in risk-free rate, growth rate, and WACC.