What is the difference between business risk and financial risk?

Business risk refers to the improbability a company has with regard to its operating income also known as earnings before interest and taxes or EBIT.  Business risk is carried on by sales volatility and intensified by the presence of fixed operating costs.

Financial risk is the further volatility of net income origin by the presence of interest expense.  Firms that have merely equity financing have no financial risk for the reason that they have no debt on which to make fixed interest payments. On the other hand, firms that operate primarily on borrowed money are bare to a high degree of financial risk.