Abstract
In the present paper, we (1) study whether people differ in the equity models they use, and (2) test whether individual differences in equity models relate to individual differences in equity sensitivity. To achieve this goal, an Information Integration experiment was performed in which participants were given information on the performance of two employees and were asked to distribute a fixed amount of money. The results reveal that people indeed use different comparison structures. In the first one, first compare their relative share of the outputs and incomes, and then compare these interpersonal ratios. The second equity model is in essence a non-integrative model in that individuals who adopt it do not use the performance information to decide on the distribution of the money. Interestingly, individual differences in equity models relate to individual differences in equity sensitivity, as people who do not use the performance information appear to be more sensitive to equity.