Better Schools, or Better Teachers?
How much does school choice matter? Probably less than you think, as Levitt has previously argued. Now, in an analysis of seven years of test-score data from 6,000 Los Angeles teachers, the L.A. Times and the Rand Corp. have found teacher effectiveness to be three times more influential than school attendance on student performance. Read More »
iPhone Users Have More Sex
As widely reported in the press recently, analysis done by the online dating site OKCupid finds that iPhone users are more sexually active than those who have Blackberrys or Androids. Read More »
SuperFreakonomics Book Club: Can a Banker's Algorithm Help Catch Would-Be Terrorists?
This week we’re offering up “Ian Horsley.” By day, he is employed in the anti-fraud department of a large British bank; but in his every spare moment for the past few years he has been working hard in collaboration with Steve Levitt to build an algorithm that can identify potential terrorists by their retail banking data. Read More »
The Communist Approach to Obesity
Here’s one way to fight obesity: mandatory exercise, as Beijing has commanded again, after a three-year break. Read More »
and 
. You can also watch it on 