I tutored that little skater boy again today. It's funny to look at economics from the perspective of someone who is just starting to learn it, because such a person's ideas about how economics works are based so much more on the real world (as opposed to actual economists, who love our nice little models and could give a shit how the real world works...just kidding...sort of). The problem isn't extrapolating from the real world, it's extrapolating incorrectly from the real world. I was trying to explain to him why as price goes up, the quantity demanded of a good goes down. This seems patently obvious to me, and I would think it would be so to anyone: the more expensive something is, the fewer people are going to want to buy it. But skater boy was thinking about things like iPods and designer shirts, which are both expensive and highly demanded (well, I don't know about designer shirts, but iPods have a pretty high demand). He's thinking that more people want the designer shirt than want the WalMart shirt, so demand goes up as price goes up. So I tried to explain that the designer shirt has its own demand function, totally separate from that of the WalMart shirt. And that the 20 gig iPod and the 60 gig iPod each have a separate demand function. On top of that, I was trying to explain that since the supply curve and the demand curve are on the same graph, the horizontal axis, which measures quantitiy, is measuring both quantity supplied and quantity demanded, and even though you're moving up the demand curve, quantity demanded is going down, because the curve has a negative slope. I guess it really is all very confusing the first time you're exposed to it. I think I got a B in principles of econ when I took it at Willamette.
I'm feeling mentally much better today, and going to see my psychiatrist was productive. But alas, it appears that I'm getting a cold, so that kind of blows. I'm sucking down the zinc to try to make it go away as quickly as possible. I feel bad because I've cancelled on McDreamy twice now in less than a week, and I may have to cancel again tomorrow because I'm all germy.
Well, its time to go to bed, because I have to get up at the butt-crack of dawn (also known as 7:15 a.m.) so that I can proctor Dr. J's micro exams for him.