It can be observed that higher financial leverage increases equity beta. However, the relationship between the unleveraged asset or enterprise beta (the beta of the underlying operating business), and leveraged equity beta that is commonly applied in practice, is incomplete. We explain the relevance of asset betas in equity valuation and why it is important to analyse the beta of debt finance and the value, and riskiness, of the debt interest tax shield when delevering and relevering equity b...
