But in many situations , agents can actually exert unobservable efforts on several different activities .
Previously , most theoretical papers in agency theory assumed that the main problem was to provide an incentive for an agent to exert more effort on just one activity .
In many situations , agents can actually exert unobservable efforts on several different activities .
Previously , most theoretical papers in agency theory assumed that the main problem was to provide an incentive for an agent to exert more effort on just one activity .