There is a new book called More Sex is Safer Sex and it is written by a male economist called Landsburg. Clever plan, Mr. Landsburg. Here is a New York Times review of the book that questions the value of the recent spate of “popular” economics books that purport to unlock the mysteries of the world using cold, hard numbers. And on a unrelated note, here is James Surowiecki (whose book we loved!) on The Pirates’ Code.