Positive temporal dependence of the biological clock implies hyperbolic discounting

Area of Science:

• Behavioral Economics
• Neuroscience
• Decision Science

Background:

• Temporal preferences often show inconsistencies, favoring immediate rewards over delayed ones, a phenomenon known as hyperbolic discounting.
• This contrasts with exponential discounting, which implies temporal consistency.
• Existing research suggests internal time representations may differ from objective calendar time.

Purpose of the Study:

• To theoretically explain temporal choice inconsistencies.
• To demonstrate how internal time perception influences decision-making.
• To propose a unified framework for understanding intertemporal choice inconsistencies.

Main Methods:

• Mathematical modeling of temporal perception and decision-making.
• Analysis of how subjective time experiences relate to objective durations.
• Simulating the effects of biological clock variability and speed on choices.

Main Results:

• Temporal inconsistencies emerge when fixed durations are experienced as positively related (positive quadrant dependent).
• Subjective time perception, not just discounting, can explain apparent time-inconsistent choices.
• Increased biological clock variability improves the fit of hyperbolic discounting models.

Conclusions:

• A theoretical framework linking biological clock properties (autocorrelation, variability, speed) to intertemporal choice inconsistencies is presented.
• This framework predicts context-dependent variations in decision-making.
• Findings suggest novel experimental directions for studying time perception's role in impulsivity, aging, addiction, and gambling.