A series of strange and violent deaths rocked Osage County, Oklahoma a century ago.

Sisters Rita, Mini, Anna and their mother Lizzie all left behind lucrative rights to the oil beneath Osage land,

while lawman Tom White was horrified by the chilling plot he uncovered.

Join me, Tim Harford, host of the Corscht Retails Podcast, for my new two-part on the Osage Killings,

the story behind the book and film Killers of the Flower Moon.

Both episodes are available now, wherever you get your podcasts.

Pushkin.

We're in a first-grade classroom in Beijing, China.

It's about 20 years ago, ahead of the annual holidays.

To mark the occasion, a teacher has brought and wrapped presents for her students.

The gifts are stacked up in a corner, ready to be handed out.

And if she's just stopped right there, it would be a great story.

Jia-jian was one of those excited kids.

But she had all of us come to the front of a classroom and said,

Hey, what did you guys say nice things about each other?

If someone calls your name and says something nice about you,

you can go get a gift and sit down.

One by one, the kids started sharing kind words about their classmates.

It was great when he started.

Someone seemed really well, someone was helpful to other teachers,

and I applaud as if we had my turn.

But the flow of compliments soon slowed down,

...