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Numbers of 2021
The most significant numbers of the year
The psychological economics of gift giving
How to buy gifts people actually want.
Does catching Covid give you more immunity than being vaccinated?
Infection vs injection: Could Covid infection provide 27 times more protection?
Does wearing a mask halve your chances of getting Covid-19?
Is it true wearing a mask reduces Covid-19 incidence by 53%?
Simpson鈥檚 Paradox: How to make vaccinated death figures misleading
A tricky statistical phenomenon at play.
A TikTok tale
How a well-meaning TikTok disrupted 4,600 studies.
The carbon cost of breakfast at COP26
Can a vegan croissant really be worse for the environment than a bacon roll?
Same data, opposite results. Can we trust research?
Why the same data can produce different conclusions.
The art of counting
Tim Harford talks to author Deborah Stone about her book which explores counting
The numbers behind Squid Game
Could you survive a round in Squid Game, and how many have watched it?
