Before revision:  We say an evolutionary dynamic is economically reasonable , if an agent' s choice of a new strategy can be justified as an optimal choice possibly by introducing additional costs and constraints ; for example, inertia can be justified by switching costs, and switches to suboptimal strategies can be by restriction to available strategies .
After revision:  We say an evolutionary dynamic is economically reasonable , if an agent' s choice of a new strategy can be justified as an optimal choice possibly by introducing additional costs and constraints .