June 10th, 2009

Vanitas desk


Today, after fruitlessly searching the house for half an hour, I gave up and went to W.H. Smith to buy more plain HB pencils. There, I found a well-stocked selection of three different HB pencil multipacks: they came in packs of nine, ten, or twelve.

How dramatically different is the market for nine pencil packs versus the market for ten pencil packs?