The Lottery That Runs on Regret: How the Postcode Lottery Uses Your Neighbours
Almost every lottery in the world sells the same thing: a few days of imagining a different life. One family of lotteries sells something sharper and far more uncomfortable - the fear of standing at your window while the entire street celebrates without you. The Dutch Postcode Lottery made your address the ticket number, which means winners arrive in clusters and the neighbour who didn't play watches it happen. That is not an accident of the format. It is the format, and in 2004 two behavioural scientists published a study showing exactly how well it works.
Selling Hope Is Easy. Selling Regret Works Better.
An ordinary lottery asks: what if you win? The Nationale Postcode Loterij, launched in the Netherlands in 1989, asks a different question - and one that is much harder to shake off: what if your street wins and you're not in it?
The difference is psychologically enormous. In a normal lottery the loss is abstract: someone somewhere wins, and you never meet them. Here the loss has a name, lives two doors down, and has a new car in the driveway. That is not an unfortunate side effect of the postcode format - it is the reason the format exists.
How the Thing Actually Works
Your address is the number
You don't choose six numbers. You subscribe, and your postcode becomes the entry. That single design decision removes every strategy question this blog usually deals with - there is nothing to pick, nothing to optimise, and no way to be cleverer than the person next door.
Winners arrive in clusters
When a postcode comes up, every subscriber in it wins at once. Prizes don't land on one anonymous stranger in another city - they land on a street, all at the same moment, in front of everyone. The celebration is public by construction.
And so does the one who didn't play
Here is the part no other lottery has. If your postcode wins and you never subscribed, you don't simply fail to win - you get a specific, personal, permanent demonstration of what you could have had, delivered by people you'll keep seeing every morning.
It shows up most starkly in the Straatprijs, the street prize: an entire postcode is drawn and the winnings spread across the whole neighbourhood - house by house, with conspicuous gaps wherever nobody subscribed.
The Rare Case: Behavioural Science in the Wild
Behavioural scientists normally have to rebuild their effects in a laboratory. Here the experiment was already running in real life, with real money and real neighbours. The Dutch researchers Marcel Zeelenberg and Rik Pieters took advantage of that and published a 2004 paper in Organizational Behavior and Human Decision Processes with a remarkably direct title: 'Consequences of regret aversion in real life: The case of the Dutch postcode lottery'.
Their finding confirmed what the design implies: people steer their decisions not only by expected winnings but by expected feelings. Someone who can vividly picture standing there while the neighbourhood wins is more likely to take part - and that holds regardless of whether it is mathematically sensible.
That is the real point. The appeal of this lottery is not better odds or bigger jackpots. It is that it makes an uncomfortable feeling concrete, and then sells you a subscription against it.
The Part That Made the Model Exportable
It would be unfair to describe all this as merely a psychological trick. Postcode lotteries were built as donation machines from the outset: a substantial share of revenue goes to charitable organisations, and the group behind them is routinely counted among the largest private funders of good causes anywhere. That combination - local wins plus visible charitable impact - is precisely what made the model exportable.
From the Netherlands it travelled to Sweden, Britain (as the People's Postcode Lottery), Norway, and in 2016 to Germany, where the Deutsche Postcode Lotterie runs on the same principle. The mechanism travels remarkably well because it assumes nothing about numbers - only that people have neighbours.
How lotteries funded landmarksFive Points If the Thought Won't Leave You Alone
- 1Notice what you're actually reacting to. If the pull is 'I couldn't stand it if they won and I didn't', that's anticipated regret doing its job - not a judgement about value.
- 2Regret changes nothing about the odds. It changes how a loss feels, never how likely it is. Those are separate quantities and it pays to keep them apart.
- 3It's a subscription, not a ticket. The cost is monthly and automatic, so total spend accumulates quietly in a way a one-off purchase never does. Add it up once a year.
- 4Shared prizes mean smaller shares. Because a whole postcode wins together, headline street sums divide into per-household amounts that are usually far more modest.
- 5If the charity share is your reason, treat it as a donation. Giving directly sends more of your money to the cause - which is a perfectly good argument for either choice, once it's stated honestly.
The sober core is the same as for any lottery: expected value per euro staked is negative, and no feeling alters that. Expected value in lotteries
With Number Lotteries You Can At Least Do the Maths
You can't back-test a postcode - but you can back-test a set of numbers. Run yours through years of real draws, across every major lottery we cover, and see what would actually have come back.
Disclaimer: This article summarizes publicly available information about postcode lotteries and published research on regret aversion. Game rules, prize structures and charitable shares differ by country and change over time - always check the current details of the operator in question. Lottery remains a game of chance. Play responsibly. LottoROI is not affiliated with any lottery operator.