In three studies, participants made choices between hypothetical financial, environmental, and health gains and losses that took effect either immediately or with a delay of 1 or 10 years. In all three domains, choices indicated that gains were discounted more than losses. There were no...

Time preferences for financial and air quality gains and losses at delays of up to 50 years were elicited using three different methods: matching, fixed-sequence choice titration, and a dynamic "multiple staircase" choice method. Results indicate that the choice-based methods are prone to...