A Level Economics · Edexcel A level Economics A (9EC0), Theme 3
Garrowsay Fuel: oligopoly and contestability
An island with five petrol forecourts. Concentration, kinked demand, price leadership, a pricing game and whether a new seller could enter.
- 3 lessons of about 55 minutes
- 26-page student workbook
- 15-page teacher guide
- PDF and editable Word
- Teacher guide with full worked answers
- Checked page by page and recalculated before release
Digital download. By buying you ask for immediate access to the files and acknowledge that you then lose the 14-day right to cancel. Refunds: see our refund page.
Free sample (PDF): cover, contents and the first two pages of Lesson 1. No answers, no email needed.
Read the video text
Garrowsay Fuel: oligopoly and contestability. Edexcel A level Economics (9EC0), Theme 3. Calculate concentration ratios. Lesson 1: Why do the forecourts leave their price alone?. Draw the kinked demand curve. Elasticity above and below the kink. Read the price log. Lesson 2: Do the forecourts act together?. When does cheating pay?. The prisoner’s dilemma on Harbour Road. Work out an entrant’s profit. Lesson 3: Should the council let a new seller in?. Write a recommendation. Grant the licence, or not? Use the figures. What you get: Student workbook + teacher guide, Full worked answers, PDF and editable Word. The Business School. Free sample on the pack page.
What is inside
One original, fictional island with five petrol forecourts, for three lessons of about 55 minutes with Year 12 or 13. Students work from a three-page data pack.
Lesson 1: concentration ratios, a kinked demand table and diagram, elasticity above and below the kink, and the gap in marginal revenue. Lesson 2: a price log that shows price leadership, a two-firm prisoner's dilemma with its Nash equilibrium, when cheating on an understanding pays, and price wars, predatory pricing and limit pricing. Lesson 3: an entrant's profit, sunk costs and how contestable the market is, a limit pricing test and a written recommendation of about 180 words to the island council.
Each lesson plan counts the written work against the minutes, and the questions that do not fit are named as homework.
- Lesson1
Why do the forecourts leave their price alone?
Concentration ratios, a kinked demand table and diagram, elasticity above and below the kink, the gap in marginal revenue.
- Lesson2
Do the forecourts act together?
A price log that shows price leadership, a two-firm game and its Nash equilibrium, when cheating pays, price wars, predatory pricing and limit pricing.
- Lesson3
Should the council let a new seller in?
An entrant's profit, sunk costs and contestability, a limit pricing test, a 180-word recommendation to the island council.
| File | Pages | What it holds |
|---|---|---|
| Student workbook PDF Word | 26 (A4) | A three-page data pack, then every lesson's tasks with ruled answer space, a kinked demand figure to complete, a game table, an entrant's profit line, exit tickets and the final recommendation. |
| Teacher guide PDF Word | 15 (A4) | Curriculum fit with page references, three 55-minute plans with homework rows, full worked answers, completed diagrams (kinked demand with the cost-rise case, and the entrant's profit line), indicative guidance, support and stretch. |
Mapped to Pearson specification (Issue 2) sections 3.4.4 and 3.4.7, with 3.3.1 and 3.3.2 used lightly.
Preview pages
Real pages from the files, at reading size. Click a page to open it full size.
About this pack
- New pack, no reviews yet. It is offered with the refund terms below.
- An original, fictional case. Every business, person, figure and quote is invented; nothing is real data.
- Timings are estimates. The lessons are not yet classroom-trialled.
- Written tasks come with indicative guidance and an example answer, not a mark scheme.
- The Word files were laid out and checked in LibreOffice, not Microsoft Word. Small layout differences are possible when you open them in Word.
- A classroom resource for teaching and practice. It does not replace a textbook or a scheme of work.
- The kinked demand curve is not named in the specification's content list; the teacher guide says so.
- Assumes students have already met price elasticity of demand, marginal revenue and cost, and profit maximisation.
- Written for Edexcel A level Economics A (9EC0), Theme 3, Business behaviour and the labour market, against the Pearson specification (Issue 2). Please check it against the specification you are teaching.
- Classroom teaching and practice only. It is not a Pearson set task and does not reproduce Pearson assessment materials.
- Not endorsed by Pearson. Contains no mark schemes.
Licence and refunds
One purchase licenses you and your school to use the pack with the students you teach: print it, project it, adapt the Word files for your own lessons and share it with colleagues in your department. Please do not post it publicly, upload it to resource-sharing sites or resell it.
If you are charged twice, cannot open the files, or the pack is not as described, email support@thebusiness.school and we put it right. Because the files are an immediate digital download and you lose the 14-day right to cancel when you buy, change-of-mind refunds are not offered once you have access. Your statutory rights are unaffected. The seller is TBS Education Ltd Oy; see the full terms and refund policy.
Who makes this
Writes the teaching material, runs the company and answers the support email himself.
Ten years teaching in Finnish vocational education.
Sold by TBS Education Ltd Oy, company number 3614159-3. About us
Questions
What exactly do I get?
A student workbook and a teacher guide for one original, fictional case. Both come as PDF and as editable Word files. The teacher guide has the lesson plans, full worked answers, completed diagrams and indicative guidance for the written tasks.
Can I edit the files?
Yes. The Word files are editable, so you can change the business name, the figures or the questions before you set it. They were laid out and checked in LibreOffice, not Microsoft Word, so you may see small layout differences in Word; the PDF is the reference layout. The download is a ZIP that opens on Windows and Mac without extra software.
Is it a mark scheme, and is it endorsed?
No to both. The teacher guide gives full answers for calculations and tables, and indicative guidance plus an example answer for each written task. It is not an exam board mark scheme, and the pack awards no marks or grades. It is mapped to the specification by section but is not endorsed by Pearson, and contains no exam board questions.
How does delivery work?
After payment you are sent straight to your download page and get a Stripe receipt by email. The download page is personal to your purchase; bookmark it.
What if something is wrong with my order?
Email support@thebusiness.school. The refund policy covers duplicate charges, files you cannot open and products that do not match their description.
Digital download. By buying you ask for immediate access to the files and acknowledge that you then lose the 14-day right to cancel. Refunds: see our refund page.