Differentiate between operating leverage and financial leverage. Discuss how leverage ought to differ across companies

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Differentiate between operating leverage and financial
leverage. Discuss how leverage ought to differ across
companies depending on their

Industry
Life cycle stage (age or maturity)
Stability of free cash flows


What are (and what is the relevance of) unlevered and levered
betas? Consider the following while using Hamada’s equation.

If AMZN has a beta of 1.2 and no financial leverage, what is
its estimated beta if it changes its Debt to Equity ratio (D/S) to
1.
If AAPL has a beta of 1.2 and a D/S ratio of 1, what is its
estimated beta if it changes its D/S ratio to 0.7.