[ExI] supply and demand

[Rafal Smigrodzki]

I noticed that some posters, when writing about the "law of supply and
demand", were referring to notions and issues that really have little
to do with the law of supply and demand as discussed by economists,
and then concluded that the law doesn't work in real life, because
whatever they were writing about wasn't making sense. In the interest
of avoiding discussions involving non-shared meanings of words, I
suggest that anybody who wants to take on supply and demand would
first read an introduction to the matter (e.g.
http://en.wikipedia.org/wiki/Supply_and_demand). A grasp of the notion
of a supply curve, elasticity, curve shift, is truly indispensable in
any reasonable treatment of this subject.

Rafal