Ib Economics Hl Formula Booklet Repack |verified|

This write-up covers the essential formulas and quantitative concepts found in a standard "repack" of the IB Economics HL Formula Booklet

, specifically tailored for the Paper 3 policy-focused exam and the quantitative requirements of Papers 1 and 2.  1. Microeconomics: Markets and Elasticities 

These formulas are fundamental for calculating consumer and producer behavior.  Price Elasticity of Demand (PED):

PED=%ΔQD%ΔPcap P cap E cap D equals the fraction with numerator % cap delta cap Q cap D and denominator % cap delta cap P end-fraction Income Elasticity of Demand (YED):

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):

PES=%ΔQS%ΔPcap P cap E cap S equals the fraction with numerator % cap delta cap Q cap S and denominator % cap delta cap P end-fraction Cross Price Elasticity of Demand (XED):

XED=%ΔQDA%ΔPBcap X cap E cap D equals the fraction with numerator % cap delta cap Q cap D cap A and denominator % cap delta cap P cap B end-fraction Total Revenue (TR): TR=P×Qcap T cap R equals cap P cross cap Q   2. Microeconomics: Theory of the Firm (HL Only) 

Essential for profit maximization and cost-benefit analysis.  Marginal Product (MP):

MP=ΔTPΔLcap M cap P equals the fraction with numerator cap delta cap T cap P and denominator cap delta cap L end-fraction Average Product (AP):

AP=TPLcap A cap P equals the fraction with numerator cap T cap P and denominator cap L end-fraction Marginal Cost (MC):

MC=ΔTCΔQcap M cap C equals the fraction with numerator cap delta cap T cap C and denominator cap delta cap Q end-fraction Profit ( ): Profit=TR−TCProfit equals cap T cap R minus cap T cap C Profit Maximization Rule: MC=MRcap M cap C equals cap M cap R   3. Macroeconomics: National Income and Growth  Calculations used to assess the health of the economy.  GDP (Expenditure Approach):

GDP=C+I+G+(X−M)cap G cap D cap P equals cap C plus cap I plus cap G plus open paren cap X minus cap M close paren GNI (Gross National Income): ib economics hl formula booklet repack

GNI=GDP+Net Income from Abroadcap G cap N cap I equals cap G cap D cap P plus Net Income from Abroad Real GDP:

Real GDP=Nominal GDPGDP Deflator×100Real GDP equals the fraction with numerator Nominal GDP and denominator GDP Deflator end-fraction cross 100 Consumer Price Index (CPI):

CPI=Cost of Basket in Current YearCost of Basket in Base Year×100cap C cap P cap I equals the fraction with numerator Cost of Basket in Current Year and denominator Cost of Basket in Base Year end-fraction cross 100 Inflation Rate:

Inflation Rate=CPI2−CPI1CPI1×100Inflation Rate equals the fraction with numerator cap C cap P cap I sub 2 minus cap C cap P cap I sub 1 and denominator cap C cap P cap I sub 1 end-fraction cross 100 Keynesian Multiplier:

k=11−MPC or 1MPW (where MPW=MPS+MPT+MPM)k equals the fraction with numerator 1 and denominator 1 minus cap M cap P cap C end-fraction or the fraction with numerator 1 and denominator cap M cap P cap W end-fraction (where cap M cap P cap W equals cap M cap P cap S plus cap M cap P cap T plus cap M cap P cap M close paren   4. International Economics  Calculations for trade and exchange rates.  Terms of Trade (TOT):

TOT=Index of Export PricesIndex of Import Prices×100cap T cap O cap T equals the fraction with numerator Index of Export Prices and denominator Index of Import Prices end-fraction cross 100 Balance of Payments:

Current Account+Capital Account+Financial Account=0Current Account plus Capital Account plus Financial Account equals 0   Exam Technique for HL Paper 3 

Show Your Working: Always include intermediate steps to secure method marks, even if the final answer is incorrect.

Units and Rounding: Pay close attention to currency units and the number of decimal places requested (usually two).

Policy Analysis: Use the results of your calculations to support your 10-mark evaluation in the final section.

Diagram Integration: Ensure your quantitative analysis matches your sketches of demand and supply shifts.  IB Economics HL Formula Booklet | PDF - Scribd This write-up covers the essential formulas and quantitative

Part 1: Why the Official IB Formula Booklet Fails (And Why You Need a Repack)

The official Economics formula booklet (often labeled as the "Economics data response and formula sheet") serves two purposes: definitions and calculations. However, it suffers from three fatal flaws:

1. Spatial Disorganization: Elasticity formulas are on page one; tax revenue is buried three pages later. You waste 30 seconds flipping pages.
2. Missing Context: It shows you the formula for PED = %ΔQd / %ΔP, but it doesn't remind you that you need to drop the negative sign.
3. No Mnemonics: The booklet is sterile. A repack adds visual cues, color-coding, and acronyms.

The solution: Print the official booklet, grab three highlighters, and physically repack it. Or, build your own condensed reference card (a "repack") that fits on one A4 sheet.

Terms of Trade (HL)

[ \textTOT = \frac\textExport price index\textImport price index \times 100 ]

• Repack: TOT > 100 → each export buys more imports (favorable).

Part 4: Three "Trap" Questions Your Repack Will Solve

Let’s apply the repack to real IB exam questions.

Trap 1: The Negative PED

• Original booklet: PED = %ΔQd / %ΔP
• Repack solution: Next to this formula, write in red: "IGNORE THE NEGATIVE. Take absolute value for revenue decisions."

Trap 2: The Government Spending vs. Tax Multiplier

• Original booklet: Shows k = 1/(1-MPC) and k = -MPC/(1-MPC)
• Repack solution: Draw a giant arrow: "Gov spending increases GDP by k. Tax cuts increase GDP by 0.8k (because people save 20%)."

Trap 3: Terms of Trade & Currency Devaluation

• Original booklet: Shows ToT = (Px/Pm) x 100
• Repack solution: Write: "ToT improves (↑) if export prices rise OR import prices fall. A weak currency worsens ToT in short run (J-curve)."

Step 4: Create a "Paper 3 Flowchart" on the Inside Cover

Use the blank space to draw a decision tree:

1. Read question – is it micro, macro, or international?
2. Micro: Elasticity? Tax burden? Profit?
3. Macro: Multiplier? Real interest? Unemployment?
4. International: TOT? Current account?

Summary Checklist

• [ ] Can you calculate PED using the midpoint method?
• [ ] Can you distinguish between Normal and Inferior goods using YED?
• [ ] Can you calculate MC and MR from a data table?
• [ ] Can you convert Nominal GDP to Real GDP?
• [ ] Do you understand the relationship between Exchange Rates and Export Prices?

By organizing the IB Economics HL Formula Booklet into this "Repack" format, you transform a list of numbers into a toolkit for analysis. Good luck on your exams

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.

While the International Baccalaureate (IB) provides an official data booklet for some subjects, for Economics, students typically rely on comprehensive "repacks" created by educators or student communities to centralize essential formulas. Key Formulas Found in HL Repacks The solution: Print the official booklet, grab three

These booklets typically categorize formulas into the main branches of the syllabus: Microeconomics

Elasticities: Formulas for Price Elasticity of Demand (PED), Income Elasticity (YED), and Cross-Price Elasticity (XED).

Costs & Revenues: Total, Average, and Marginal Cost/Revenue; Profit Maximization ( Market Structures: Shut-down price ( ) and Efficiency points (Allocative: ; Productive: Macroeconomics GDP & Growth: Expenditure approach ( ); Real vs. Nominal GDP using the GDP Deflator.

Inflation: Calculating Consumer Price Index (CPI) and Inflation Rate. The Multiplier: Simple Keynesian multiplier ( International & Development Economics

Exchange Rates: Currency conversions and percentage changes. Terms of Trade: Equity: Gini Coefficient and tax rate calculations. Where to Find Popular Repacks

You can access or download various versions of these booklets on major educational resource platforms:

Studocu: Features recent versions like the "Econ HL Formula Booklet 2024".

Scribd: Hosts several versions, including the widely used 2016 and 2019 versions that remain relevant for core concepts.

Tutopiya: Provides a structured online guide for the 2026 syllabus indicators.

Important Note: These booklets are intended for study and assistance during the course; they are NOT permitted for use during official IB examinations. IB Economics HL Formula Booklet | PDF - Scribd

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) ]

Repack Clarification:

• MV=PY is the Quantity Theory of Money. In the repack, write: "If V and Y are constant, an increase in M causes proportional increase in P (inflation)." This is a common HL essay link.