Adam Davidson

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One jobs number gets all the attention: The number of jobs lost or gained in the previous month.

That number is important. But focusing too much on the net change in jobs can be misleading. It gives the impression that a job is like a widget — it's something that gets made in a factory somewhere, and that we hope exists forever.

That's not how it works. Even in good economic times ,new jobs are constantly being created and old jobs are constantly being destroyed. (Of course, you do want the number of jobs created to exceed the number of jobs destroyed.)

Peter Frew is one of a tiny number of people left in the United States who can — entirely on his own, using almost no machinery — make a classic bespoke suit. He can measure you, draw a pattern, cut the fabric and then hand-stitch a suit designed to fit your body perfectly.

Frew spent more than a decade as an apprentice for a remarkable tailor in his native Jamaica. He now sells his suits for about $4,000. Since New York is filled with very rich people who see their suits as an essential uniform, Frew has all the orders he can handle.

Every day at 11 a.m., a few big banks tell the British Bankers' Association what it costs them to borrow. Out of that comes LIBOR — the London Interbank Offered Rate, a dull but vital interest rate that underpins trillions of dollars of transactions globally, from home mortgages and personal credit cards to major corporate lending.

For more, see our video, Inside The Matzo Factory, and see Adam Davdson's latest NYT Magazine column

The matzo business may be the most heavily regulated business in the world.

Why are some nations rich and others poor? In a new book called Why Nations Fail, a pair of economists argue that a lot comes down to politics.

To research the book, the authors scoured the world for populations and geographic areas that are identical in all respects save one: they're on different sides of a border.

Turn on the news on any given day, and you're likely to hear about the Dow Jones industrial average. It is the most frequently checked, and cited, proxy of U.S. economic health. But a lot of people — maybe most — don't even know what it is. It's just the stock prices of 30 big companies, summed up and roughly averaged. That's it.

And what does the daily movement of this number have to do with the lives of most Americans? Not much.