Return on investment IROI) = net income / capital invested.
For a company like Wendys, this is not a viable measure of
performance for its restaurant managers.
This is because of the following reasons :
- The investment in each restaurant is determined by middle
management in the corporate office, and not by the restaurant
managers. As the investment in the restaurant is not decided by the
managers, it is not fair to assess them based on ROI
- The investment in each restaurant depends on many different
factors such as location, distance from other Wendy's outlets,
population density etc. Some restaurants with high investments may
be expected to have low ROI at initiation, but the company would
still proceed to invest because it wants to reach a higher volume
of customers or it wants to have a restaurant in a strategic
location. Restaurants in some high density locations (for example,
in malls) may naturally have higher ROI. Thus, it is not fair to
compare restaurant managers based on ROI because of these biases in
ROI
- The costs allocated to some restaurants may be higher due to
factors such as distance. This is beyond the control of managers,
and hence ROI is not an appropriate measure