Elasticity of Demand.

It is something that shows something or other, and it should make sense. Somehow. I am indeed making a dent in my Economic Techniques book. I find slamming my head against it very therapeutic.

Otherwise, why is it that a large section of the Naruto fandom seem to think Kakashi is a horrible sensei to Naruto? The reason that Kakashi went off to teach Sasuke during the Chuunin exam was because Jiriya specifically told to him to take care of the Uchiha while Jiriya himself will personally teach Naruto. So yeah, a bit confused on the whole 'Kakashi plays favourite' thing.