The IB Economics HL Formula Booklet (often referred to as a "repack" when edited or condensed by third-party creators) is a supplemental resource used by students to master the quantitative requirements of the IB Diploma Programme (IBDP) Economics course, particularly for Paper 3.
Original Booklet:
[
\textYED = \frac%\Delta QD%\Delta Y
]
Repack Annotation:
YED > 1 = luxury (income elastic). 0 < YED < 1 = necessity. ib economics hl formula booklet repack
The official booklet is organized by broad syllabus sections (Microeconomics, Macroeconomics, etc.). A "Repack" reorganizes this data based on exam utility, pairing formulas with their definitions, units of measurement, and specific "trigger words" found in exam questions. The IB Economics HL Formula Booklet (often referred
| Country | Cars (hrs) | Wheat (hrs) | |---------|------------|--------------| | USA | 10 | 5 | | UK | 20 | 10 | Repack : If PED < 1 (inelastic), raise
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YED=%ΔQD%ΔYcap Y cap E cap D equals the fraction with numerator % cap delta cap Q cap D and denominator % cap delta cap Y end-fraction Price Elasticity of Supply (PES):