Tom de Bruyne – behavioural design expert and co-founder of SUE Behavioural Design

Tom de Bruyne

Co-founder & Author of Gamechangers

Tom de Bruyne is co-founder of SUE Behavioural Design and author of the book Gamechangers. He trains professionals in applying behavioural science and developed the SUE Influence Framework.

Author of Gamechangers

47 articles

Cognitive Biases at Work

Cognitive biases at work

An overview of the most important thinking errors that distort our daily decisions in the workplace.

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Confirmation bias at work

Why we only seek information that confirms what we already believe, and how that causes teams to get stuck.

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Anchoring bias at work

How the first number you hear skews all your subsequent estimates, from salary negotiations to budget rounds.

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Bandwagon effect at work

Why teams follow the majority and how groupthink kills innovation.

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Availability heuristic at work

How recent or vivid experiences distort our judgement, even when the data tells a completely different story.

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Decision fatigue at work

After hundreds of micro-decisions per day, the quality of your choices drops dramatically. Here is how to prevent it.

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Cognitive dissonance at work

Why employees keep defending bad decisions instead of revising them.

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Decoy effect at work

How a third option that nobody chooses determines which of the other two options people do choose.

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Dunning-Kruger effect at work

Why the least competent colleague radiates the most confidence, while the expert doubts.

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Endowment effect at work

Why we cling to what we have simply because it is ours, even when better options are available.

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Framing effect at work

The same facts lead to completely different decisions, depending on how you present them.

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Halo effect at work

How a good first impression blinds us to someone's weaknesses, from job interviews to performance reviews.

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Hindsight bias at work

Why we always think we saw it coming in hindsight, and how that undermines evaluations.

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Optimism bias at work

How structural optimism leads to overly ambitious deadlines, underestimated budgets and risky decisions.

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Present bias at work

Why we choose urgent but unimportant tasks over projects that matter in the long run.

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Loss aversion at work

Loss feels twice as heavy as gain. How that causes risk-averse behaviour in teams and organisations.

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Status quo bias at work

Why people prefer to keep things as they are, even when change is demonstrably better.

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Sunk cost fallacy at work

Why organisations keep investing in failing projects, simply because they have already invested so much.

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Concepts & Frameworks

The SUE Influence Framework explained

The framework for systematically analysing behaviour and designing interventions that actually work.

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System 1 and System 2 explained

How our brain uses two thinking systems and why that changes everything you thought you knew about decision-making.

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Thinking Fast and Slow: what Kahneman discovered

The scientific foundation of Behavioural Design, from prospect theory to cognitive biases.

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Behavioural economics explained

The science that proves people do not decide rationally and what that means for your strategy.

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Decision science explained

How people actually decide and why that rarely matches how we think they decide.

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Choice architecture explained

How the way you present choices determines what people choose, often without them noticing.

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Defaults explained

The most powerful nudge there is: people almost always choose the default option. How to use defaults strategically.

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Commitment devices explained

How to help people follow through on their good intentions by building in barriers against relapse.

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Implementation intentions explained

Why "I will eat healthier" does not work, but "when it is Monday at noon, I will eat a salad" does.

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Friction in behavioural design explained

Sometimes you want to lower barriers, sometimes raise them. How to use friction strategically in behavioural design.

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Social norms explained

How unwritten rules determine what people do, from energy consumption to tax returns.

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Sludge explained

The dark side of friction: how unnecessary barriers prevent people from making choices in their own interest.

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Dark patterns explained

When behavioural design is misused: the manipulative techniques you need to recognise and avoid.

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Libertarian paternalism explained

How to nudge people towards better choices without restricting their freedom of choice.

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Nudging explained

How to give people a gentle push in the right direction without restricting their freedom of choice.

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Also read articles by Astrid Groenewegen

Astrid Groenewegen – behavioural design expert and trainer at SUE Behavioural Design

Astrid Groenewegen

Co-founder of SUE Behavioural Design and author of The Happiness Code. Expert in employee happiness, communication and behavioural change.

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