This document discusses operating leverage and financial leverage. It defines operating leverage as the use of fixed operating costs by a firm and financial leverage as the use of fixed financing costs. It discusses how operating leverage can increase the variability of a firm's operating profits through the degree of operating leverage (DOL). The DOL measures the percentage change in operating profits from a 1% change in sales. Firms with higher DOL are more sensitive to sales fluctuations. The document also introduces the concepts of break-even analysis and EBIT-EPS analysis to evaluate the impacts of operating and financial leverage.