Suburban Lifestyles, Inc. has manufactured prefabricated houses for over 20 years. The houses are constructed in sections to be assembled on customers' lots. Suburban Lifestyles expanded into the precut housing market when it acquired Fairmont Company, one of its suppliers. In this market, various types of lumber are precut into the appropriate lengths, banded into packages, and shipped to customers' lots for assembly. Suburban Lifestyles' management designated the Fairmont Division as an investment center. Suburban uses return on investment (ROI) as a performance measure with invest part on ROI. All investments are expected to earn a minimum return of 15 percent before income taxes. Fairmont's ROI has ranged from 19.3 to 22.1 percent since it was acquired. Fairmont had an investment opportunity in 20x1 that had an estimated ROI of 18 percent. Fairmont's management decided against the investment because it believed the investment would decrease the division's overall ROI. The 20x1 income statement for Fairmont Division follows. The division's productive assets were $25,200,000 at the end of 20x1, a 5 percent increase over the balance at the beginning of the year.

FAIRMONT DIVISION
Income Statement
For the Year Ended December 31, 20x1
(in thousands)
Sales revenue ................................................................................................................................................. $48,000
Cost of goods sold ........................................................................................................................................... 31,600
Gross margin .............................................................................................................................................. $16,400
Operating expenses:
Administrative ............................................................................................................................ $4,280
Selling ...................................................................................................................................... 7,200 11,480
Income from operations before income taxes ..................................................................................................... $ 4,920

1. Calculate the following performance measures for 20x1 for the Fairmont Division.

a. Return on investment (ROI).

b. Residual income.

2. Would the management of Fairmont Division have been more likely to accept the investment opportunity it had in 20x1 if residual income were used as a performance measure instead of ROI?