Gasoline prices and how they affect many markets. Nice practice!

Here is a terrific article from the WSJ (I think it is ungated) that illustrates a bunch of introductory microeconomic concepts within the Supply and Demand unit.

This paragraph speaks mostly to the Demand-side:

“Households had the potential to save $630 at the pump, of which they spent the majority—58%. This spending provided more than a $200 boost to spending on non-gas goods and services, primarily restaurants and retailers. The lower gas prices also caused significant changes in household transportation choices, leading people to spend $150 more at gas stations and spend less on transit.”---WSJ Real Time Economics

Substitutes, Complements, movement along and a shifting of various Demand curve(s).

Happy graph drawing!