If you're hunting for a "formula booklet" for IB Economics HL
GNI (Gross National Income): GDP + Net Property Income from Abroad Real GDP: (Nominal GDP / GDP Deflator) × 100 Inflation and Unemployment ib economics hl formula booklet
The Moral of the Story:
The IB Economics HL Formula Booklet is not a shortcut to understanding. It is a reliability tool. Use it to: If you're hunting for a "formula booklet" for
XED = (% Change in Quantity Demanded of Good A) / (% Change in Price of Good B)Formulas:
Inflation & Unemployment: Percentage change in CPI; Unemployment rate calculations. The Global Economy Terms of Trade: (Index of average export prices ÷divided by Index of average import prices) ×100cross 100 Gini Coefficient: Measuring income inequality. Where to Find Unofficial Booklets Formula: XED = (% Change in Quantity Demanded
HL Specific Twist: HL students must calculate PED using the midpoint (arc) formula to avoid directional bias. While the booklet gives you the standard formula, you must remember the expanded version: $$ PED = \frac(Q2 - Q1) / (Q2 + Q1)(P2 - P1) / (P2 + P1) \times 100 $$ Pro tip: The booklet provides the "change over average" method. Use it for perfect scores on calculation questions.
Don't wait for the exam to open it: Use the formula booklet during every unit test and practice session. Familiarity breeds speed.