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Why does a $5 Uber voucher turn angry customers into loyal fans? In this episode, Eva van den Broek and Tim den Heijer share actionable insights from their book The Housefly Effect, revealing seven marketing psychology tips you can use to grow your business. 

You’ll learn:

How scarcity drives demand, from pineapple rentals to volume-limited products.

Why a $5 apology voucher boosted Uber’s revenue (feat. reciprocity principle).

How Tropicana’s rebrand taught marketers a costly lesson about habits.

Why "95% fat-free" yoghurt sells better than "5% fat" (feat. framing effect).

The clever way airlines manage flight-time expectations to keep customers happy.

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Get the book: https://bedfordsquarepublishers.co.uk/book/the-housefly-effect

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Watch Nudge on YouTube: https://www.youtube.com/@nudgepodcast/

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Sources:

van den Broek, E., & den Heijer, T. (2024). The Housefly Effect. Bedford Square Publishers.

Bundesliga study | Brandes, L., & Franck, E. (2012). Social preferences or personal career concerns? Field evidence on positive and negative reciprocity in the workplace. Journal of Economic Psychology, 33(5), 925–939

McFlurry sales boosted by 55% | Walsh, N. (2024). Tune in: How to make smarter decisions in a noisy world. Bedford Square Publishers.

Uber $5 apology | Halperin, B., Ho, B., List, J. A., & Muir, I. (2019). Toward an understanding of the economics of apologies: Evidence from a large-scale natural field experiment (No. w25676). National Bureau of Economic Research. https://doi.org/10.3386/w25676

Berger, J. (2013). Contagious: Why things catch on. Simon & Schuster.

Gu, Y., Botti, S., & Faro, D. (2013). Turning the page: The impact of choice closure on satisfaction. Journal of Consumer Research, 40(2), 268–283. 

Martin, S. J. (2024). Influence at work: Capture attention, connect with others, convince people to act. [Paperback]. Economist Edge.

Yuan, Y., Liu, T. X., Tan, C., Chen, Q., Pentland, A., & Tang, J. (2020). Gift contagion in online groups: Evidence from WeChat red packets.