Markets exist when buyers and sellers interact.
This interaction determines market prices and thereby allocates scarce goods and services. When supply or demand changes, market prices adjust, affecting incentives. The purpose of today's lesson is to release some of your tension and break set from our regular classroom activity. We will then commence into a cool-down activity that will not only bring down your heart rate, but will stimulate your motor neurons. I don't tell them in advance what the ultimate goal is because they seem to be more interested in the fact that we're doing something different than the typical classroom routine.