An instrument that could turn crowding-out into crowding-in

Using a simple decision-theoretic approach, we formalize how agents with different kinds of intrinsic motivations react to the introduction of monetary incentives. We contend that empirical results supporting the existence of a crowding-out effect in various contexts hide a more complex reality. We also propose a new policy instrument which taps into agents' heterogeneity regarding intrinsic motivations in order to turn a situation subject to crowding-out into a crowding-in outcome. This instrument uses a self-selection mechanism to match adequate monetary incentives with individuals' types regarding intrinsic motivations.