The Almighty DollarAre preachers motivated by the desire to save souls or to make cold, hard cash?
The Right Kind of Peer PressureWant girls to do better in school? Surround them with smart classmates.
We're Blowing ItA new paper suggests U.S. military aid does nothing to reduce drug production in Colombia.
You Shouldn't HaveThe economic argument for never giving another gift.
Are Men More Competitive Than Women?Don't bet on it.
400 Percent APR: Is That Good?Do people take out payday loans because they're desperate, or because they don't understand the terms?
A Formula for SuccessWant more women to study science? Hire more female professors.
Testing TestingEmployment tests may be racially biased—but what if they're less biased than human beings?
The Invisible Hand of GodAdam Smith thought competition among religions was a good thing. Does Hanukkah prove him wrong?
They Made a KillingDid people who knew about secret, CIA-led coups use that information to game the stock market?
You've Just Been Offered a Great New Job in Charlotte!Too bad you can't sell your house in Tampa.
Hot for the Wrong TeachersWhy are public schools so bad at hiring good instructors?
The Pilgrim's ProgressivenessDoes going to Mecca make Muslims more moderate?
SkinflintDid Eliot Spitzer get caught because he didn't spend enough on prostitutes?
Cos and EffectBill Cosby may be right about African-Americans spending a lot on expensive sneakers—but he's wrong about why.
Industrial EspionageHow the CIA got the world to buy American during the Cold War.
Nudges Gone WrongA program designed to reduce energy consumption persuaded some Republicans to consume more.
How to Make America More InnovativeGive scientists more incentives to innovate.
Illegal ContactDoes watching football lead to domestic violence?
Errors in JudgmentWere hundreds of criminals given the wrong sentences because lawyers messed up a basic work sheet?
It's Like eBay Meets Match.comDoes peer-to-peer lending work?
Comparison ShoppingThe real reason CEO compensation got out of hand.
You Can't Put a Price on FriendshipOr can you?
What's In It for Me?How congressmen decided whether to vote for the bailout.
Will There Be Blood?Will falling oil prices cause civil wars?
But What Does It Mean for the Prostitutes?How the financial crisis affects the oldest profession.
The $100 Distraction DeviceWhy giving poor kids laptops doesn't improve their scholastic performance.
Going Down SwingingWhat if three-strikes laws make criminals less likely to repeat offend—but more violent when they do?
The Tiger Woods EffectWhen he's in the field, everyone else plays worse. How Tiger throws off golf's incentive structure.
It Takes a Village … to fail to thank its female leader, no matter how good she is.