Summary: If you’ve played Candy Crush, flown on United Airlines, or taken an Uber or Lyft, you’ve been in one of Prof. John List’s experiments without even knowing it. List’s studies have changed the world by equipping policymakers with real-world data to address issues like climate change, the gender pay gap, and why inner-city schools fail. But now, he’s warning of a crisis that’s threatening the impact of scientific research. It’s something he calls ‘the scale-up problem.’
