How do tiny changes in our surroundings create big impacts on our daily lives? And what does that have to do with house flies?

Episode Summary
In this episode, I’m thrilled to welcome Dr. Eva Van Den Broek and Tim Den Heijer to discuss their new book, The Housefly Effect, which explores the hidden ways behavioral science influences our daily decisions.

We dive into fascinating examples of nudges, from a simple housefly sticker in a urinal to placebo buttons at pedestrian crossings. They reveal how clever behavioural tricks are everywhere, steering our actions without us even realizing it.

Eva and Tim share insights from their diverse backgrounds — Eva, a behavioural economist working on policy and research, and Tim, an advertising strategist who brings these ideas to life through real-world campaigns.

Together, they’ve written a book that not only explains these influences but invites readers to recognize and leverage them in their own lives. Our conversation also touches on the ethical aspects of behavioural science and why it’s so important to think critically about when and how these techniques are used.

From funny to thought-provoking, Tim and Eva bring a fresh perspective on behavioural science that’s both entertaining and deeply insightful.

Guest Biographies
Dr. Eva Van Den Broek is a behavioural economist and the founder of Behavioral Insights Netherlands. She specializes in using behavioural science to improve public policy and has extensive experience working with government agencies and ministries. Eva’s work spans a variety of real-world applications, from interventions in education to campaigns promoting library use among low-literacy adults. She is also a lecturer and public speaker, known for making complex behavioral insights accessible and practical.

Tim Den Heijer is a creative strategist, copywriter, and founder of Brain Creatives, an agency that combines advertising and behavioural science. With over 20 years in advertising, Tim has helped shape campaigns for some of the world’s biggest brands.

His work focuses on finding creative ways to connect behavioural insights with marketing goals. Tim’s approach blends curiosity with pragmatism, drawing on his love-hate relationship with advertising to question conventional wisdom and explore new ideas in behavioural influence.

AI Generated Timestamped Summary of Key Points
[00:00:00] Introduction to the concept of behavioural influences in daily decisions.

[00:00:40] Examples of nudges used by advertisers and governments.

[00:01:01] Introduction of guests Dr. Eva Van Den Broek and Tim Den Heijer.

[00:01:20] Eva and Tim's professional backgrounds and collaboration on The Housefly Effect.

[00:02:00] Overview of their book’s approach to behavioural science through engaging stories.

[00:02:23] Discussion on cognitive diversity and collaboration dynamics.

[00:03:05] Eva’s early career shift from AI to practical behavioural science.

[00:04:00] Tim’s journey from linguistics to advertising and the influence of behavioural science.

[00:05:00] Origins of the collaboration between Eva and Tim, emphasizing cognitive diversity.

[00:06:00] Key insights from their book on using simple nudges effectively.

[00:09:10] The story behind the “housefly effect” in urinals as a behavioural nudge.

[00:13:00] How nudges can be effective even without precise measurements.

[00:17:00] Discussing the organization of topics in The Housefly Effect and their selection process.

[00:20:00] Examples of “dumb” ideas that actually work in behavioural science.

[00:22:00] Placebo buttons and how they influence behaviour.

[00:25:00] Differences between public policy and advertising approaches to behaviour change.

[00:30:00] Insights on behavioural science’s application across different cultures.

[00:34:00] Dutch cultural openness to experimentation in public policy.

[00:39:00] Discussion of translating The Housefly Effect for an international audience.

[00:42:00] The “Washboard” example illustrates people’s willingness to pay for convenience.

[00:45:20] The “behavioral safari” concept and the challenges of switching off the behavioural lens.

[00:48:32] Ethical considerations in behavioural influence and the limits of persuasive tactics.

Relevant Links
Eva (https://www.linkedin.com/in/evdbroek/) and Behavioural Insights Netherlands (https://www.behaviouralinsights.nl/)

Tim (https://www.linkedin.com/in/timdenheijer/) and B.R.A.I.N. Creatives (https://braincreatives.nl/

The HouseFly Effect: https://bedfordsquarepublishers.co.uk/book/the-housefly-effect/

The Dutch original: https://bromvliegeffect.nl/

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