Portrait on the left, the reference was Pepper&Carrot. Random robotic flower humanoids scatted around the page.
Explaining consumer behaviour. Two products and choosing what to have.
Coupons. For those that are time rich.
Price discounts. Two part pricing. An example is the cinema - discount price for students.
Efficiency of the market. Producer/Consumer surplus.
pricing strategy. Elastic vs inelastic.
income elasticity of demands.
Cobweb model. Production lag/delay.
Pricing with market power
supply, demand. price, quantity.
I painting a portrait of the Boston bomber when after it happened. Here's a quick sketch of Salman Ramedan Abedi.
areas and value
when market fail.