Ib Economics Hl Formula Booklet ~upd~ Review

The booklet provides the basic formulas, but it won't tell you the rules of interpretation

: Devaluation/depreciation will improve the trade balance if Taxation : Average Tax Rate : Marginal Tax Rate : Exam Performance Tips ib economics hl formula booklet

PED is always negative (law of demand). The booklet doesn't force you to write the negative sign, but examiners want it. If you forget the minus, you get a "method" mark but lose the "accuracy" mark. Write $-2.5$, not $2.5$. The booklet provides the basic formulas, but it