Ib Economics Hl Formula Booklet Repack

[ \textXED = \frac%\Delta QD \text of Good A%\Delta P \text of Good B ] Repack Annotation: XED positive → substitutes (Coke/Pepsi). XED negative → complements (Printers/Ink).

Development formulas are rare but appear in HL Paper 3 as data response questions. ib economics hl formula booklet repack

Terms of Trade (ToT) index and the Marshall-Lerner Condition. [ \textXED = \frac%\Delta QD \text of Good