Cross-Period Impatience : Subjective Financial Periods Explain Time-Inconsistent Choices

Inconsistency in consumer time preferences has been well-established and used to explain seemingly short-sighted behaviors (e.g., failures of self-control). However, prior research has conflated time-inconsistent preferences (discount rates that vary over time) with present bias (greater discounting when outcomes are delayed specifically from the present, as opposed to from a future time). This research shows that time-inconsistent preferences are reliably observed only when choices are substantially delayed (e.g., months into the future), which cannot be explained by present bias. This seeming puzzle is explained by a novel cross-period discounting framework: Consumers are more impatient when choosing between options occurring in different subjective financial periods. As a result, they display inconsistent time preferences and are less willing to wait for an equally delayed outcome specifically when a common delay to both options moves the larger-later option into a subsequent financial period. Six studies and supplementary studies demonstrate the insufficiency of current models of time discounting, and that sensitivity to subjective financial periods both predicts and causes specific inconsistency in intertemporal preferences