ABSTRACT: Accounting information is often produced in an aggregate format and is delayed in its arrival. This teaching note examines the effects of aggregation and de-layed arrival in the context of management control. One might expect that a reduction of information about managerial performance would reduce the efficiency of incentive schemes designed to increase goal congruence within the firm. Contrary to this intui-tion, aggregation, which reduces information, in some circumstances increases the efficiency of incentive schemes. This potential improvement in efficiency results be-cause under aggregation the superior can exploit the subordinate’s uncertainty about his future compensation. However, the resultant information loss from aggre...