Leverage allows an investor to make an investment larger than what they could with just their own money by borrowing funds and taking on debt. This can increase potential returns but also increases potential losses if the investment declines in value, as the debt still needs to be repaid. There are different types of leverage including operating leverage, which measures fixed vs variable costs, and financial leverage, which measures how net income varies with operating profit due to financing with debt. When analyzing leverage, metrics like degree of financial leverage, degree of operating leverage, and degree of combined leverage are used to understand risk. A case study example compares how different capital structures using equity, debt, or preference shares would impact earnings per share for a firm.