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The Incentives Lab
HBT-TIM-0008 · Dimension TIM · Time

Quasi-Hyperbolic (β-δ) Discounting

A present-bias kink (β) on top of exponential discounting (δ): immediate rewards get a bonus, all future rewards trade normally.

Decision·Mental Model·Grade B·draft· enriching…

Scientific Definition

A present-bias kink (β) on top of exponential discounting (δ): immediate rewards get a bonus, all future rewards trade normally.

Plain-English Definition

A present-bias kink (β) on top of exponential discounting (δ): immediate rewards get a bonus, all future rewards trade normally.

Feynman Explanation

Future-you is patient and disciplined. Present-you is the one with the credit card.

Core Principle

A present-bias kink (β) on top of exponential discounting (δ): immediate rewards get a bonus, all future rewards trade normally.

Mechanisms

Psychological

Pending editorial review.

Behavioral Economic

A present-bias kink (β) on top of exponential discounting (δ): immediate rewards get a bonus, all future rewards trade normally.

Neurological

Pending editorial review.

Evolutionary

Pending editorial review.

Sociological

Pending editorial review.

Computational

Pending editorial review.

Systems

Savings defaults, subscription pricing, and retention timing.

Inputs (Triggers)

Pending editorial review.

Outputs (Behaviors)

Pending editorial review.

Behavioral Signature

Future-you is patient and disciplined. Present-you is the one with the credit card.

Examples

Everyday
  • Laibson's model of self-control failures in saving and consumption.
Modern (Organizational)
  • Savings defaults, subscription pricing, and retention timing.
Historical

Pending editorial review.

Famous Experiments

Pending editorial review.

Design Principles

  • Move the decision earlier; commit future-you before present-you arrives.

Measurement Approaches

Pending editorial review.

Evidence

Evidence Grade
B (A strongest → E speculative)
Replication
★★★☆☆
Intervention Confidence
3 / 5
Consensus
Pending editorial review (HBT v1.0 auto-seed).
Limitations
Pending editorial review (HBT v1.0 auto-seed).
Open Research Questions

Pending editorial review.

Primary References

Pending editorial review.

Signature Section

The Perverse Incentive Lens™

How this behavior is exploited — and how to redesign around it.

Exploitation
Savings defaults, subscription pricing, and retention timing.
Amplifying Incentives
Savings defaults, subscription pricing, and retention timing.
Org Failure Modes
Savings defaults, subscription pricing, and retention timing.
Societal Failure Modes
Pending editorial review (HBT v1.0 auto-seed).
Ethical Considerations
Pending editorial review (HBT v1.0 auto-seed).
Redesign Strategies
Move the decision earlier; commit future-you before present-you arrives.
Diagnostic Questions
  • Move the decision earlier; commit future-you before present-you arrives.
Warning Signs

Pending editorial review.

Red Flags

Pending editorial review.

Intervention Playbook
Individual
Move the decision earlier; commit future-you before present-you arrives.
Team
Pending editorial review (HBT v1.0 auto-seed).
Organization
Pending editorial review (HBT v1.0 auto-seed).
Policy
Pending editorial review (HBT v1.0 auto-seed).
AI Implications
Detection
Pending editorial review (HBT v1.0 auto-seed).
Measurement
Pending editorial review (HBT v1.0 auto-seed).
Mitigation
Pending editorial review (HBT v1.0 auto-seed).
Responsible Use
Pending editorial review (HBT v1.0 auto-seed).

Interactive Mini Network

Click any neighbor to re-center the graph and follow the threads of connection.

HBT-TIM-0008 · TIM
Quasi-Hyperbolic (β-δ) Discounting
QDHaHabitTBTime BiasCoCompoundingDRDiscount RateFSFuture Self ContinuityKHKeystone HabitMVMaker vs. Manager TimePDPath DependenceRSRepresentational Sys…RHRepresentativeness H…

Knowledge Graph Neighbors

Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.

Version History

v1.1.0 · 2026-06-28Initial auto-seed from corpus.