The Undercover Economist

Why does a cappuccino cost several times what it takes to make? Why does the supermarket practically hide its cheap staples? Why can you never buy a decent used car — and why, on a vastly larger canvas, do some countries stay poor while China lifted hundreds of millions out of poverty in a generation? Harford's answer is that all of these are the same kind of question. Everyday life is governed by economic forces — scarcity power, price discrimination, externalities, asymmetric information — that operate in plain sight but go unnoticed, and the book's project is to hand you the detective's lens. His touchstone is the idea of markets as a "world of truth": genuinely competitive prices are compressed information about what things really cost and what people really want. But real markets deviate from that ideal in specific, analyzable ways, and the deviations — not vague forces like greed — are where both injustice and policy failure live.

Published the same year as Freakonomics, this became the other founding text of pop economics — over a million copies sold, and the launchpad for Harford's entire career as the FT's undercover economist. It has aged into something like the standard first economics book: the one that teaches the way of thinking rather than the headlines.