Are children's carseats necessary? Steven Levitt on TED.com

Economist Steven Levitt shares provocative data that shows carseats are no more effective than seatbelts in protecting kids from dying in cars. However, during the Q&A, he makes one crucial caveat. (Recorded July 2005 in Oxford, UK. Duration: 19:04.)

Watch Steven Levitt’s talk on TED.com, where you can download it, rate it, comment on it and find other talks and performances — including Steven Levitt’s 2004 TEDTalk on the economics of the crack trade.

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