What’s on the Supply & Demand poster
The rule, 3 worked examples, and the mistake everyone makes.
- Equilibrium is where the quantity demanded equals the quantity supplied.
- Qd = Qs at the equilibrium price
- Price above equilibrium = Surplus, price falls
- Price below = Shortage, price rises
- Demand rises = Price and quantity both rise
- Common mistake: Confusing a shift with a movement → Price changes move along a curve
Demand shifters: income, tastes, substitutes, complements, expectations, population. Price is never among them.
Questions about the Supply & Demand poster
- What’s on the Supply & Demand poster?
- The rule, 3 worked examples, and the mistake everyone makes. Equilibrium is where the quantity demanded equals the quantity supplied.; Qd = Qs at the equilibrium price; Price above equilibrium = Surplus, price falls; Price below = Shortage, price rises; Demand rises = Price and quantity both rise; Common mistake: Confusing a shift with a movement → Price changes move along a curve. Demand shifters: income, tastes, substitutes, complements, expectations, population. Price is never among them.
- Who is the Supply & Demand poster for?
- Supply & Demand belongs to the Economics section rather than to a school year, because business is not something one grade owns. Anyone learning microeconomics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Supply & Demand poster?
- Price moves until the quantity buyers want equals the quantity sellers offer. A wall chart earns its place by being glanceable from where the work is happening, so Supply & Demand belongs on the wall where that business work actually happens, within glancing distance, rather than filed away.
- What other posters go with Supply & Demand?
- Firm Objectives, Consumer Choice and Efficiency & Welfare sit alongside Supply & Demand in the Economics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Firm ObjectivesConsumer ChoiceEfficiency & Welfare
- Is the Supply & Demand poster free to download and print?
- Yes. Supply & Demand downloads as a free PDF with no account, no email and no watermark, like everything else in the Economics section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Supply & Demand poster print at?
- Supply & Demand is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Supply & Demand loses nothing.Printing guide
Related posters
Charts that sit alongside Supply & Demand on the same wall.
Browse every Economics poster, or start from the full catalogue.