Several experiments show that feedback transmission mechanisms mitigate opportunistic behavior in social dilemmas. The source of this effect, especially in a repeated interaction, nonetheless remains obscure. This study provides a novel empirical testbed for channels by which feedback may affect...

Recent experiments show that feedback transmission can mitigate opportunistic behavior in repeated social dilemmas. Two nonexcludable explanations have been investigated: strategic signaling and nonmonetary sanctioning. This literature builds on the intuition that under both partner matching...