Legonomics: there's money in them bricks

Your childhood was more expensive than you remember.

Tyler Cowen links to an interesting post looking at the economics of Lego. The bulk of the post is a hefty, data-filled look at how Lego is actually much the same price as it always has been:

The general trend seems to be that at least in the last couple decades, LEGO has not gotten any more expensive. Let’s next look a little closer into the price of a brick since 1990.

Figure 5 The price per piece of LEGO since 1990 – Adjusted for inflation

Average Real Price Per Piece 1990-2012

From what our data shows, it seems that the notion that LEGO is increasing in price is false at least in regards to the last couple decades. Since around 2006, the average price of a piece of LEGO has remained relatively stable between 10 and 13 cents apiece.

But the best part is the short discussion at the bottom of the post about the secondary market for Lego:

On the website BrickLink you can find almost any set that LEGO has ever produced. In addition, the site keeps records of trends in the market and value of individual pieces. This site is invaluable to a LEGO collector and has given many the ability to grow their collections. Before the advent of this site and sites like eBay, collecting LEGO required going to garage sales. There are now whole sites dedicated to buying LEGO as an investment, but that is a topic for another article.

If someone is going to do a data analysis of the lego market, this is the one I'd like to see. I'd be particularly interested to find out if there are any arbitrage opportunities left in the Lego world. While the prices of individual second-hand bricks vary wildly, the prices of complete sets are relatively stable, being set by Lego rather than the aggregation of thousands of Lego collectors. That means that it may be possible to buy up sets of Lego, break them up, and sell them for a profit on BrickLink. But, of course, the minute anyone realises that, the value of the pieces will plummet due to oversupply…

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