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We often associate high income with older people, but young people can also earn higher incomes. Let’s see what those people studied and what they do for a living.

Researchers asked 10,000 participants to list ten things that recently made them happy. I counted and connected the dots.

I wanted to see how daily patterns emerge at the individual level and how a person’s entire day plays out. So I simulated 1,000 of them.

But not every group’s median income increased by the same amount.