The benchmark bed
Perfect competition
Build the benchmark for price-taking firms, revenue curves, short-run and long-run outcomes, shutdown and the firm's supply curve.
- Price taker
- AR = MR
- Efficiency
CAIE 9708 · A Level Economics
Follow five connected paths through the market garden. Learn each structure on its own, then compare how firms behave and perform.
Your route through 7.6
Every path will use the same Study Room rhythm, so students always know what to do next.
Use short interactive notes and diagrams to build the model.
Download the worksheet and complete it away from the screen.
Watch worked explanations, then use the suggested-answer guide.
The market garden
Perfect competition and monopoly are now available. Each path uses the same notes, interaction, worksheet and answer-support structure.
The benchmark bed
Build the benchmark for price-taking firms, revenue curves, short-run and long-run outcomes, shutdown and the firm's supply curve.
The first deep-dive
Examine market power, barriers, revenue and profit, efficiency, X-inefficiency, contestability and comparisons with competing structures.
The differentiated border
Connect product differentiation and freedom of entry to a downward-sloping demand curve, non-price competition and long-run normal profit.
The interdependent grove
Explore interdependence, price and non-price competition, collusion, the Prisoner's Dilemma and concentration ratios.
One network, one path
Understand why substantial economies of scale may make one supplier the lowest-cost way to serve an entire market.
Strictly within the syllabus
This map keeps the learning pages, worksheets and answer support aligned to the Cambridge syllabus.
Perfect competition and imperfect competition: monopoly, monopolistic competition, oligopoly and natural monopoly.
Number of buyers and sellers, product differentiation, freedom of entry and availability of information.
Legal, market, cost and physical barriers—and how each one limits competition.
Revenue, output, profit, shutdown, supply, efficiency, contestability, competition, collusion and the Prisoner's Dilemma.
Define, calculate and interpret concentration ratios as evidence about market structure.
Already ready to use
Students can use the existing Unit 7.6 Paper 4 question bank or open the Study Room without waiting for every notes page to be completed.
A note from Orion
Start with the assumptions behind each structure. Then use those assumptions to explain the revenue curves, profit, output and efficiency outcomes.