In a follow-up to "Freakonomics," the authors offer a new analysis of how the economy really works.

How is a street prostitute like a department-store Santa? -- Why should suicide bombers buy life insurance? -- Unbelievable stories about apathy and altruism -- The fix is in : and it's cheap and simple -- What do Al Gore and Mount Pinatubo have in common? -- Epilogue : monkeys are people too.