Ib Economics Hl Formula Booklet Repack May 2026

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). 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. ib economics hl formula booklet repack

%ΔP = (2/10) × 100 = 20%. PED = (%ΔQd) / 20 → –0.4 = %ΔQd / 20 → %ΔQd = –8%. New Qd = 1000 × (1 – 0.08) = 920 units. Question 2 (Macro) MPC = 0.75, MPT = 0.1, MPM = 0.05. Government increases spending by $40 million. Calculate total increase in GDP. Change in GDP = Initial spending × Multiplier

Furthermore, for (the quantitative paper), you need advanced HL-specific calculations that the booklet presents in a very dry manner. The repack makes them visual and actionable. MPS = 1 – MPC = 0

[ \textSacrifice Ratio = \frac\textCumulative GDP loss\textReduction in inflation ] Section 3: International Economics – The "Trade & Balance of Payments" Repack International formulas are often the most ignored because students assume they are just definitions. Wrong. HL Paper 3 loves a terms of trade calculation. 3.1 Comparative Advantage (Opportunity Cost) The booklet often just provides output/input tables. The repack provides the decision rule : "Calculate opportunity cost = what you give up / what you gain. The country with the lower opportunity cost has the comparative advantage."