Ib Economics Hl Formula Booklet Repack 【PREMIUM ◎】
Multiplier = 1 / (MPS + MPT + MPM). MPS = 1 – MPC = 0.25. k = 1 / (0.25 + 0.1 + 0.05) = 1 / 0.4 = 2.5. ΔGDP = 40M × 2.5 = $100 million. Question 3 (International) Export price index rises from 100 to 120. Import price index rises from 100 to 110. Calculate Terms of Trade.
An IB Economics HL Formula Booklet Repack is not about changing the official data; it is about reorganizing, color-coding, and annotating the booklet so you can find the right elasticity, the correct welfare loss, or the precise multiplier formula in under 10 seconds.
In this article, we will deconstruct the official booklet, repack it logically by syllabus unit, add memory triggers, and show you exactly how to turn a confusing reference sheet into a high-scoring cheat sheet for your final exams. The official Economics formula booklet (provided for the May and November exam sessions) is sterile. It lists formulas but rarely tells you why you use them or when . ib economics hl formula booklet repack
That is where the concept of a comes in.
Change in GDP = Initial spending × Multiplier. Example: Government spends $10M, MPC = 0.8 → k = 5 → Total GDP change = $50M. 2.2 Monetary Policy Equations (HL Only) The booklet lists: [ \textReal Interest Rate = \textNominal Interest Rate - \textInflation Rate ] [ \textMoney Supply \times \textVelocity = \textPrice Level \times \textReal Output (MV=PY) ] Multiplier = 1 / (MPS + MPT + MPM)
[ \textYED = \frac%\Delta QD%\Delta Y ] Repack Annotation: YED > 1 = luxury (income elastic). 0 < YED < 1 = necessity.
An turns the exam into a game of recognition rather than recall. By reorganizing the information by topic, adding memory triggers, and color-coding applications, you effectively double the utility of the official document. ΔGDP = 40M × 2
Let’s break down the repack by topic. In the official booklet, micro formulas are scattered. In our repack, we group them into three clusters: Elasticities, Tax Burdens, and Cost Curves. 1.1 Elasticities (SL & HL) Original Booklet: [ \textPED = \frac%\Delta QD%\Delta P ] Repack Annotation: Use the midpoint formula for arc elasticity: (Q2-Q1)/((Q1+Q2)/2) ÷ (P2-P1)/((P1+P2)/2)
