Remember when Valve said it was looking to hire all sorts of people from every walk of life – from lowly programmers to the giant-bow-tie-wearingest of fungineers? Well, one bit in there stood out: “And if you’re a first-class economist,” Michael Abrash wrote, ”please check us out. You’ll have a sandbox with 40 million users, and I promise you’ll never be bored.” Well, apologies to RPS’ substantial audience of budding TF2 hat economists. That position, you see, has officially been filled.

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