Answer: an increase in the effectiveness of a cost management system and an increase in the quality of performance information.
Explanation:
Controllable costs this are the cost over which a company can control. Examples of this cost include marketing budgets, and labor costs.
Why non-controllable costs are those cost that a company cannot change or control, examples of this cost are rent , and insurance. This are usually noticeable by an increase in the effectiveness of a cost management system, and an increase in the quality of performance information.