Intervention (Hidden)
Our treatments vary the payoffs in two dimensions. First, we vary the payoff for re-porting “No” from 5ct to 15ct to 25ct per round. Second, we vary the absolute difference of the payoff from “Yes” to the payoff from “No” from 5ct to 15ct to 25ct. We obtain nine treatments. In T1, the payoff from “No” is 5ct and the payoff from “Yes” is 10ct, i.e., a 100% increase. In T2, the payoff from “No” is 5ct and the payoff from “Yes” is 20ct, i.e., a 300% increase. In T3, the payoff from “No” is 5ct and the payoff from “Yes” is 30ct, i.e., a 500% increase. In T4, the payoff from “No” is 15ct and the payoff from “Yes” is 20ct, i.e., a 33% increase. In T5, the payoff from “No” is 15ct and the payoff from “Yes” is 30ct, i.e., a 100% increase. In T6, the payoff from “No” is 15ct and the payoff from “Yes” is 40ct, i.e., a 167% increase. In T7, the payoff from “No” is 25ct and the payoff from “Yes” is 30ct, i.e., a 20% increase. In T8, the payoff from “No” is 25ct and the payoff from “Yes” is 40ct, i.e., a 60% increase. In T9, the payoff from “No” is 25ct and the payoff from “Yes” is 50ct, i.e., a 100% increase.