Economics
by Tim Harford
Who really pays for your coffee?
Tim Harford starts at a coffee bar beside a busy commuter station, where the cappuccino is dear and the queue is long. Where does your money end up, and why is the price so high? He treats everyday prices as clues and follows them like a detective.
Hear a sample · read by Laura
Commuters won't walk far for a cheaper cup, so a bar by the station can charge more. The owner doesn't keep much of the extra, though. The landlord of that spot takes it in rent. Harford, following David Ricardo, says the money flows to whoever owns the scarce thing.
Every shop would love to charge each customer the most they'd pay. It can't read minds, so it gets you to reveal yourself. Premium blends, bigger sizes and a plain value range exist partly to sort the careful shoppers from the rest. Harford calls this price targeting.
Each car that joins a rush-hour road slows everyone else a little, and the driver pays nothing for it. Harford calls that an externality. His fix is to put a price on it, and he backs London's congestion charge, which made driving into the centre cost money.
Why does a nearly new car sell for so much less than a new one? George Akerlof's answer, which Harford retells, is that the seller knows whether it's a lemon (a dud) and the buyer can't tell. Buyers assume the worst, so good cars stay off the market.
Scarcity power
A coffee stall by the station can charge more, but the landlord pockets most of it through the rent.
Price targeting
Shops charge different people different prices, using fancy versions and value ranges to sort the rich from the careful.
True prices
Free markets put prices on things, so everyone faces the true cost of what they use.
Traffic
Traffic jams happen because drivers don't pay for the delay they cause others. London's congestion charge makes them pay it.
Lemons
When sellers know much more than buyers, as with used cars, the good cars stop being offered.
A story from the book
Harford visits Cameroon to ask why some countries stay poor. He finds corruption running from the top of government down. When officials can help themselves to whatever anyone builds, few people bother to build. He blames the way the country is run far more than any shortage of resources.
Hot take · true or myth?
Every driver in a traffic jam pays the full cost of their trip.
Myth. Each extra car slows everyone else, a cost its driver never pays. Harford calls that an externality, and backs charges like London's congestion charge that put a price on it.
One thing to try
On your next supermarket trip, find one product sold in both a premium and a value version. Compare the ingredients, then the price gap. Harford would say the gap often tells you more about which shopper is being targeted than about the product itself.
Knotd has the key ideas from 250+ non-fiction books, each in a few minutes, in plain words. The Undercover Economist comes with a Hot Take round to make it stick.
Get the whole book on KnotdOpen in the appWho really pays for your coffee? Tim Harford starts at a coffee bar beside a busy commuter station, where the cappuccino is dear and the queue is long. Where does your money end up, and why is the price so high? He treats everyday prices as clues and follows them like a detective.
Scarcity power; Price targeting; The driver who slows you down; The market for lemons.
On your next supermarket trip, find one product sold in both a premium and a value version. Compare the ingredients, then the price gap. Harford would say the gap often tells you more about which shopper is being targeted than about the product itself.
Yes. Knotd has the key ideas from The Undercover Economist in a few minutes, in plain words, plus a Hot Take round to test them. It's one of 250+ non-fiction books in the app.
