We explore when it is optimal for senders to commit to signal structures which induce the receiver to take higher actions when the underlying state is higher and the preferences of the receiver satisfy strategic complementarity conditions. Building on the literature on monotone comparative...

Many important economic situations can be modelled as dynamic games of incomplete information with strategic complementarities of actions and types. Of special interest is the question of the existence of a perfect Bayesian equilibrium in which actions are monotonic in types. In this paper, we...