Economics 101 with Jack White

What's that, Jack? Price is a function of supply and demand?

Eighteen months ago, Jack White's record company Third Man Records was having problems with "flippers" – people who buy the company's ultra-limited-edition releases (the tri-colour vinyl reissue of the White Stripes' first album, for instance, was an edition of five) purely to sell them on for a profit. His solution? Skip the middleman:

This week, Third Man Records decided to beat the flippers at their own game, listing their own limited-edition White Stripes reissues on eBay. Vault subscribers [a paid members' service] were directed to these auctions, where bids have soared to more than $300 (£193).

The winning bid ended up being $510, but White had to face down angry fans, writing:

make no mistake, we could make twenty thousand split color whatevers for you, and they’ll be worth 20 bucks, and you’ll pay 20 bucks for them, and you’ll never talk about them, desire them, hunt to find them, etc. why should ebay flippers, who are not real fans, dictate the price, make all the profit (taken from the artist and the label) and take the records out of the hands of real fans. there’s a guy who waits in a black suv down the block from third man who hires homeless people to go buy him tri colors when they are on sale. doesn’t even get out of his car. should he be charged ten bucks or two hundred? don’t be spoiled, don’t insult people who are trying to give you what you want.

Writing at the Guardian, , a staff member at Third Man, even brought some economic theory into the discussion:

Third Man customers take these limited-edition releases very seriously. Hardcore fans are incredibly dedicated and vote with their money. The more hard to find an item is, the more they want it. It's something of a Veblen good, and that's not a bad thing. But I understand fans' frustration when there is something they cannot get, and by us selling items on eBay it appears we are dangling something in front of their noses and demanding they pay more. We are not. These items will end up on eBay regardless. On an auction site, the customers set the price.

So, economics 101 with Jack White: price is a function of supply and demand. If supply is low and demand is high, the equilibrium price will be high indeed. If the merchant keeps the price artifically low, then there is an opportunity for arbitrage – or "flipping". Either way, the price will end up at its natural level; so you may as well capture that yourself.

Hat-tip to Modeled Behaviour

Jack White sings with his band the Dead Weather. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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A swimming pool and a bleeding toe put my medical competency in doubt

Doctors are used to contending with Google. Sometimes the search engine wins. 

The brutal heatwave affecting southern Europe this summer has become known among locals as “Lucifer”. Having just returned from Italy, I fully understand the nickname. An early excursion caused the beginnings of sunstroke, so we abandoned plans to explore the cultural heritage of the Amalfi region and strayed no further than five metres from the hotel pool for the rest of the week.

The children were delighted, particularly my 12-year-old stepdaughter, Gracie, who proceeded to spend hours at a time playing in the water. Towelling herself after one long session, she noticed something odd.

“What’s happened there?” she asked, holding her foot aloft in front of my face.

I inspected the proffered appendage: on the underside of her big toe was an oblong area of glistening red flesh that looked like a chunk of raw steak.

“Did you injure it?”

She shook her head. “It doesn’t hurt at all.”

I shrugged and said she must have grazed it. She wasn’t convinced, pointing out that she would remember if she had done that. She has great faith in plasters, though, and once it was dressed she forgot all about it. I dismissed it, too, assuming it was one of those things.

By the end of the next day, the pulp on the underside of all of her toes looked the same. As the doctor in the family, I felt under some pressure to come up with an explanation. I made up something about burns from the hot paving slabs around the pool. Gracie didn’t say as much, but her look suggested a dawning scepticism over my claims to hold a medical degree.

The next day, Gracie and her new-found holiday playmate, Eve, abruptly terminated a marathon piggy-in-the-middle session in the pool with Eve’s dad. “Our feet are bleeding,” they announced, somewhat incredulously. Sure enough, bright-red blood was flowing, apparently painlessly, from the bottoms of their big toes.

Doctors are used to contending with Google. Often, what patients discover on the internet causes them undue alarm, and our role is to provide context and reassurance. But not infrequently, people come across information that outstrips our knowledge. On my return from our room with fresh supplies of plasters, my wife looked up from her sun lounger with an air of quiet amusement.

“It’s called ‘pool toe’,” she said, handing me her iPhone. The page she had tracked down described the girls’ situation exactly: friction burns, most commonly seen in children, caused by repetitive hopping about on the abrasive floors of swimming pools. Doctors practising in hot countries must see it all the time. I doubt it presents often to British GPs.

I remained puzzled about the lack of pain. The injuries looked bad, but neither Gracie nor Eve was particularly bothered. Here the internet drew a blank, but I suspect it has to do with the “pruning” of our skin that we’re all familiar with after a soak in the bath. This only occurs over the pulps of our fingers and toes. It was once thought to be caused by water diffusing into skin cells, making them swell, but the truth is far more fascinating.

The wrinkling is an active process, triggered by immersion, in which the blood supply to the pulp regions is switched off, causing the skin there to shrink and pucker. This creates the biological equivalent of tyre treads on our fingers and toes and markedly improves our grip – of great evolutionary advantage when grasping slippery fish in a river, or if trying to maintain balance on slick wet rocks.

The flip side of this is much greater friction, leading to abrasion of the skin through repeated micro-trauma. And the lack of blood flow causes nerves to shut down, depriving us of the pain that would otherwise alert us to the ongoing tissue damage. An adaptation that helped our ancestors hunt in rivers proves considerably less use on a modern summer holiday.

I may not have seen much of the local heritage, but the trip to Italy taught me something new all the same. 

This article first appeared in the 17 August 2017 issue of the New Statesman, Trump goes nuclear