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12 Diagrams You Must Draw From Memory

The 12 A Level Economics diagrams you should be able to draw from memory, drawn correctly and free on this page.

12 diagrams·JC1 and JC2·Price controls · Externalities · AD and AS·Print ready

Every diagram here is drawn by the ETG diagram engine, where each equilibrium is a true intersection of the lines and every shift is parallel. Each one carries the labels the engine draws on it: the curves, the equilibrium points, and the price and quantity ticks.

Price controls

3 diagrams · JC1 microeconomics
01

Price ceiling

Price ceiling Price Quantity 0 SS0 DD0 Pmax A F Q0 P0 Qs Qd E0 B C shortage
02

Price floor, generic

Price floor, generic Price Quantity 0 SS0 DD0 Pmin A F Q0 P0 Qd Qs E0 B C
03

Minimum wage, full welfare

Minimum wage, full welfare Price/Wages ($/hr) Qty of workers 0 CS PS DWL SS0 Dd0 Qe $10 = Pe $15 = Pmin Qd Qs surplus

Externalities and welfare

4 diagrams · JC1 microeconomics
04

Negative externality

Negative externality Price / Cost / Benefit Quantity 0 MSC MPC MPB = MSB MEC Qs Qm A B C
05

Positive externality

Positive externality Price / Cost / Benefits Quantity 0 MPC = MSC MPB MSB = MPB + MEB MEB Qm Qs
06

Positive externality with a subsidy

Positive externality with a subsidy Price / Cost / Benefits Quantity 0 MPC = MSC = SS0 MPB MSB = MPB + MEB SS1 = SS0 + subsidy MEB Qm Qₛ = Q*
07

Free university education

Free university education Price / Costs / Benefits Qty of university education 0 MPC = MSC = SS0 MPB MSB = MPB + MEB SSfree = SS0 + subsidy Qm Qs Q*

Aggregate demand and aggregate supply

5 diagrams · JC2 macroeconomics
08

AD increase, intermediate range

AD increase, intermediate range GPL (General Price Level) Real National Income AS0 AD0 AD1 Y0 P0 Y1 P1 Yf
09

AD increase at full employment

AD increase at full employment GPL (General Price Level) Real National Income AS0 AD0 AD1 P1 P0 Yf
10

AD decrease at full employment

AD decrease at full employment GPL (General Price Level) Real National Income AS0 AD0 AD1 P0 P1 Yf
11

Fall in SRAS

Fall in SRAS GPL (General Price Level) Real National Income AS0 AS1 AD0 Y0 P0 Y1 P1 YF Fall in SRAS
12

Increase in LRAS

Increase in LRAS GPL (General Price Level) Real National Income AS0 AS1 AD0 P0 P1 Y0 Y1 YF0 YF1 Increase in LRAS
Where these get taught and marked

ETG Last Lap, the JC2 revision programme

Last Lap is the mid-year entry programme for JC2 students who are new to ETG, running weekly until the A Levels in November. It opens all 61 JC2 recorded lessons from January onwards, ongoing weekly Core and Supplement classes onsite at Coronation Plaza, Upper Thomson, Kovan and Pasir Ris or on Zoom Live, 11 bundled crashcourses, and the printed, bound materials for the Starter Pack and all four terms.

See ETG Last Lap
JC2

September is the final entry month. From 1 October, registration closes.

  • 61 JC2 recorded video lessons, open from day one
  • Weekly graded homework from June: an essay or case study, marked with a PDF solution and a video tutorial
  • Double lessons through September and October, plus two mock exams set and reviewed by Mr Toh
  • Unlimited Zoom and face to face consults, and direct WhatsApp access to Mr Toh
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