Howard Company provided the following selected information about its consumer products division for the current year: Desired ROI 6% Operating income$267,800 Residual income$37,800 Based on this information, the division's investment amount was:

Which of the following is an example of a positive externality? a. promoting generic drugs would benefit people. b. a lower inflation rate would benefit most consumers. c. compulsory flu shots for all students prevents the spread of illness in the general public. d. singapore has adopted a comprehensive savings plan for all workers known as the central provident fund.