Timothy Douglas Harford OBE (born 1973) is an English economist, broadcaster and journalist who lives in Oxford.

He is the author of four economics books and writes his long-running Financial Times column, “The Undercover Economist”, syndicated in Slate magazine, which reveals the economic ideas behind everyday experiences. His column in the Financial Times, “Since You Asked”, ran between 2011 and 2014 and offered a skeptical look at the news of the week.

Harford joined the Financial Times in 2003 on a fellowship in commemoration of the business columnist Peter Martin. He continued to write his column after joining the International Finance Corporation in 2004, and he rejoined the Financial Times, as economics leader writer, in April 2006. He is also a member of the newspaper’s editorial board.

Tim has spoken at TED, PopTech and the Sydney Opera House. He is a visiting fellow of Nuffield College, Oxford and an honorary fellow of the Royal Statistical Society.

In August 2007, he presented a television series on the BBC, Trust Me, I’m an Economist. In October 2007, Harford replaced Andrew Dilnot on the BBC Radio 4 series More or Less. From November 2016, he presented an economic history documentary radio and podcast series 50 Things That Made the Modern Economy. Since November 2019, he has been presenting the podcast series Cautionary Tales.

He is a visiting fellow at Nuffield College, Oxford.

Books in order of publication:

 The Market for Aid (2005) with Michael Klein,

The Undercover Economist (2005)

The Logic of Life (2008)

Dear Undercover Economist: Priceless Advice on Money, Work, Sex, Kids, and Life’s Other Challenges (2009). New York, Random House. 2009.

 Adapt: Why Success Always Starts with Failure (2011). New York, Farrar, Straus and Giroux.

The Undercover Economist Strikes Back: How to Run—or Ruin—an Economy (2014). Penguin Riverhead Books (USA).

Messy: The Power of Disorder to Transform Our Lives (2016). Riverhead Books.

 Fifty Things That Made the Modern Economy (2017). Little, Brown.

The Next Fifty Things that Made the Modern Economy (2020). The Bridge Street Press.
How to Make the World Add Up (2020). Little, Brown.