TCP Shorts: Revealed Preferences

Cute kids eating chocolate

Imagine you're trying to impress your friend Olive with how healthy you are. "Oh, yeah, spinach, I love that stuff," you say. "And chocolate? Pfft, don't like it at all."

The next day you're at a store (in the strictest versions of the theory it needs to be a store that only sells spinach and chocolate - you know, just your average Spinach 'n' Chocolate Emporium). When you get home with your bag of groceries, Olive notices that it's chock-full of chocolate. "A-HA!" she shouts excitedly. "No matter what you claim to like, you have a revealed preference for chocolate over spinach." You hang your head in shame... but at least you have some comfort chocolate to nibble on!

Further reading: Wikipedia


TCP Shorts are an experimental feature where we try to explain an important concept in under 140 words. What did you think? Let us know in the comments!

Uri Bram writes popular non-fiction books with a conceptual approach to mathematical, scientific and analytical thinking. He is the author of Thinking Statistically and Write Harder.


Cover image: Christmess, by makelessnoise

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