We explore the science, scalability, and (of course) economics surrounding the global vaccine race. Guests include the chief medical officer of the first U.S. firm to go to Phase 3 trials with a vaccine candidate; a former F.D.A. commissioner who’s been warning of a pandemic for years; and an economist who thinks Covid-19 may finally change how diseases are cured.

A new interview show with host Steve Levitt. Today he speaks with the Harvard psychologist and linguist Steven Pinker. By cataloging the steady march of human progress, the self-declared “polite Canadian” has managed to enrage people on opposite ends of the political spectrum. Levitt tries to understand why.

What happens when tens of millions of fantasy-sports players are suddenly able to bet real money on real games? We’re about to find out. A recent Supreme Court decision has cleared the way to bring an estimated $300 billion in black-market sports betting into the light. We sort out the winners and losers.

The endless pursuit of G.D.P., argues the economist Kate Raworth, shortchanges too many people and also trashes the planet. Economic theory, she says, “needs to be rewritten” — and Raworth has tried, in a book called Doughnut Economics. It has found an audience among reformers, and now the city of Amsterdam is going whole doughnut.

Aisle upon aisle of fresh produce, cheap meat, and sugary cereal — a delicious embodiment of free-market capitalism, right? Not quite. The supermarket was in fact the endpoint of the U.S. government’s battle for agricultural abundance against the U.S.S.R. Our farm policies were built to dominate, not necessarily to nourish — and we are still living with the consequences.

Everyone agrees that massive deforestation is an environmental disaster. But most of the standard solutions — scolding the Brazilians, invoking universal morality — ignore the one solution that might actually work

Most Americans agree that racial discrimination has been, and remains, a big problem. But that is where the agreement ends.

The racial wealth gap in the U.S. is massive. We explore the causes, consequences, and potential solutions. Also: another story of discrimination and economic disparity, this one perpetrated by an international sporting authority. The first of a two-part series.

Christina Romer was a top White House economist during the Great Recession. As a researcher, she specializes in the Great Depression. She tells us what those disasters can (and can’t) teach us about the Covid crash.

Before she decided to become a poker pro, Maria Konnikova didn’t know how many cards are in a deck. But she did have a Ph.D. in psychology, a brilliant coach, and a burning desire to know whether life is driven more by skill or chance. She found some answers in poker — and in her new book The Biggest Bluff, she’s willing to tell us everything she learned.