Listen "Why We’re Irrationally Loyal to Amazon Prime"
Episode Synopsis
2 out of 3 internet users in the USA pay for Prime.
Yet, most of them are irrationally loyal.
They feel like the subscription provides more cost savings than reality.
Today, on Nudge, Richard Shotton and I explore the behavioural science behind Amazon Prime.
We look at the sunk-cost fallacy and pennies-a-day effect to explain why so many are irrationally loyal to Amazon Prime.
---
Subscribe to the Nudge Vaults: https://www.nudgepodcast.com/vaults
Read Richard’s book: https://a.co/d/fEW7amQ
Sign up for my newsletter: https://www.nudgepodcast.com/mailing-list
Connect on LinkedIn: https://www.linkedin.com/in/phill-agnew-22213187/
Watch Nudge on YouTube: https://www.youtube.com/@nudgepodcast/
---
Today’s sources:
Arkes, H. R., & Blumer, C. (1985). The psychology of sunk cost. Organizational Behavior and Human Decision Processes, 35(1), 124–140.
Gourville, J. T. (1998). Pennies-a-day: The effect of temporal reframing on transaction evaluation. Journal of Consumer Research, 24(4), 395–403.
Gourville, J. T., & Soman, D. (1998). Payment depreciation: The behavioral effects of temporally separating payments from consumption. Journal of Consumer Research, 25(2), 160–174.
Roth, S., Robbert, T., & Straus, L. (2015). On the sunk-cost effect in economic decision-making: A meta-analytic review. Business Research, 8(1), 99–138.
Yet, most of them are irrationally loyal.
They feel like the subscription provides more cost savings than reality.
Today, on Nudge, Richard Shotton and I explore the behavioural science behind Amazon Prime.
We look at the sunk-cost fallacy and pennies-a-day effect to explain why so many are irrationally loyal to Amazon Prime.
---
Subscribe to the Nudge Vaults: https://www.nudgepodcast.com/vaults
Read Richard’s book: https://a.co/d/fEW7amQ
Sign up for my newsletter: https://www.nudgepodcast.com/mailing-list
Connect on LinkedIn: https://www.linkedin.com/in/phill-agnew-22213187/
Watch Nudge on YouTube: https://www.youtube.com/@nudgepodcast/
---
Today’s sources:
Arkes, H. R., & Blumer, C. (1985). The psychology of sunk cost. Organizational Behavior and Human Decision Processes, 35(1), 124–140.
Gourville, J. T. (1998). Pennies-a-day: The effect of temporal reframing on transaction evaluation. Journal of Consumer Research, 24(4), 395–403.
Gourville, J. T., & Soman, D. (1998). Payment depreciation: The behavioral effects of temporally separating payments from consumption. Journal of Consumer Research, 25(2), 160–174.
Roth, S., Robbert, T., & Straus, L. (2015). On the sunk-cost effect in economic decision-making: A meta-analytic review. Business Research, 8(1), 99–138.
More episodes of the podcast Nudge
Don’t listen to this podcast
15/12/2025
Are leaders born or are they made?
03/11/2025
Why did Partygate Make Voters so Angry?
13/10/2025
How HubSpot’s CMO Uses AI: 4 Important Tips
06/10/2025
ZARZA We are Zarza, the prestigious firm behind major projects in information technology.