Exploring the Role of Deliberation Time in Non-Selfish Behavior: the Double Response Method

In this paper, we explore the Double Response research method, in which, in each decision task, subjects supply one quick choice and one additional choice after a longer deliberation time. Assuming a simple dual-process framework, with the two modes of judgment running parallel to each other providing the decision-maker with their final estimates of the utility difference between the options, this method incentivizes the decision-maker to indicate which option they prefer in System 1 and which option is preferred in System 2. We apply the method to a series of simple decision tasks aimed at eliciting subjects’ social preferences (as in Charness and Rabin, 2002). We observe that time pressure leads to a negative attitude towards the earnings of other participants when they are higher than those of the decision-maker. In other words, deliberation decisions are typically updated towards those corresponding with lower aversion to disadvantageous inequality (“envy”).