The firm's return on equity has over time and the primary reason for that trend is a corresponding change in a. Decreased; profitability b. Decreased; leverage c. Decreased; efficiency d. Increased; profitability e. Increased; leverage f. Increased; efficiency 9. Ignore the financials above. Suppose a firm's leverage ratio increases significantly over a 3-year period. All else equal, what effect would you expect this change to have on the firm's credit rating and its yield to maturity? a. Improve; decrease b. Improve; increase c. Decline; decrease d. Decline; increase e. Not enough information to answer The firm's return on equity has over time and the primary reason for that trend is a corresponding change in a. Decreased; profitability b. Decreased; leverage c. Decreased; efficiency d. Increased; profitability e. Increased; leverage f. Increased; efficiency 9. Ignore the financials above. Suppose a firm's leverage ratio increases significantly over a 3-year period. All else equal, what effect would you expect this change to have on the firm's credit rating and its yield to maturity? a. Improve; decrease b. Improve; increase c. Decline; decrease d. Decline; increase e. Not enough information to