From the Freakonomics Blog:
You might have learned about the hidden elves of Iceland if you read the Michael Lewis article we blogged about recently. (Note: for Icelandic pushback to Lewis’s colorful tales, see here.) The Icelandic government apparently takes these elves very seriously, and often requires that new construction sites be certified as clear of elves before building begins. So how do you find an elf? Slate’s Explainer has the answer. Among the interesting factoids: 3 percent of Icelanders swear they have seen an elf in their lifetime. Not long ago, we ran Nathan Myhrvold’s compelling photos of Iceland. Sadly, there are no elves in the frames … or so you think.
The Icelandic rebuttal contains this excellent line:
But if you’re going to introduce the notion that some kind of Ministry of Elf Inspection exists within the ranks of the Icelandic government, you might as well also note that we take the Hogwart’s Express to the office every day.