ABSTRACT

According to the definition given in Chapter 1, control is an impact exerted on a controlled system to ensure the desired behavior of the latter. The staff and structure being fixed, the controlled system represents a set of rational agents making independent decisions on how to act depending on the situation. Within the game-theoretic framework a controlled system is defined by the set N of the agents, the tuples of their goal functions ( fi(⋅))i ∈ N, and their feasible sets (Xi)i ∈ N, as well as by the awareness structure I (also known as an informational structure or a hierarchy of beliefs). Hence, controlling a fixed set of agents may include exerting an impact on the following components: goal functions (motivational control), feasible sets (institutional control), and the awareness structure (informational control). This chapter discusses informational control in detail. Let us start with the following example.