We develop a general principal–agent framework in which to study optimal incentive schemes where agents are hired to work on multiple heterogeneous and interdependent projects. The incentive schemes can be based on output measures, interpreted as the principal’s payoffs, as well as input...

Many human tasks are multidimensional. Hence Holmstrom and Milgrom (1991) concluded that a ghigh-poweredh incentive cannot work unless all dimensions of the task are observable in the firm. However, as this study shows, if the firm can observe the price vector of its product in the market,...