Kelsey Piper
Contributing editor
Latest articles by Kelsey Piper
Why humanely raising animals is more complicated than just a good living environment.
USAID compared a job training program to handing out cash. Cash looks better.
With cellphones in widespread use, getting everyone access to banking is within reach.
People getting a UBI were less likely to go hungry as Kenya shut down.
But the overall fight against polio looks as tough as ever — and Covid-19 is making it worse.
The formula predicted rich kids would do better than poor kids who’d earned the same grades in class.
To save the world, plant-based meat needs to be cheaper.
Computers are getting closer to passing the Turing Test.
Kids who were treated for intestinal worms in 1999 earn far more now than kids who weren’t.
In the past year, she’s given away $1.7 billion.