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So you want to help people? That’s great — but beware the law of unintended consequences. Three stories from the modern workplace.

The psychologist Daniel Kahneman — a Nobel laureate and the author of “Thinking, Fast and Slow” — recently died at age 90. Along with his collaborator Amos Tversky, he changed how we all think about decision-making. The journalist Michael Lewis told the Kahneman-Tversky story in a 2016 book called "The Undoing Project." In this episode, Lewis explains why they had such a profound influence.

The psychologist Daniel Kahneman — a Nobel laureate and the author of “Thinking, Fast and Slow” — recently died at age 90. Along with his collaborator Amos Tversky, he changed how we all think about decision-making. The journalist Michael Lewis told the Kahneman-Tversky story in a 2016 book called "The Undoing Project." In this episode, Lewis explains why they had such a profound influence.

People who are good at their jobs routinely get promoted into bigger jobs they’re bad at. We explain why firms keep producing incompetent managers — and why that’s unlikely to change.

Fareed Zakaria says yes. But it’s not just political revolution — it’s economic, technological, even emotional. He doesn’t offer easy solutions but he does offer some hope.

The political debates over immigration can generate a lot of fuzzy facts. We wanted to test Americans’ knowledge — so, to wrap up our special series on immigration, we called some Freakonomics Radio listeners and quizzed them.