Economics for the CFA: Micro, Macro & Global Markets
Supply and demand through exchange rates and business cycles — microeconomics, macroeconomics, monetary policy, and international trade for CFA Level I.
Definition first
This guide is designed for first-pass understanding. Start with core terms, then apply the framework in your own account workflow.
Economics is the lens through which investment professionals understand the forces that move markets. From the microeconomic dynamics of individual firms and industries to the macroeconomic forces that drive interest rates, inflation, and currency values, the CFA economics curriculum gives you the frameworks to analyze the economic environment in which all investments exist. Whether you're valuing a company, constructing a portfolio, or assessing global risks, economics provides the context that makes every other CFA topic area more meaningful.
Microeconomics: The Building Blocks
Microeconomics studies the behavior of individual consumers, firms, and markets. For investment professionals, microeconomic analysis is essential for understanding how companies operate within their industries, how pricing decisions are made, and how competitive dynamics affect profitability.
Demand, Supply, and Market Equilibrium
The most fundamental concept in economics is the interaction of demand and supply. These forces determine prices and quantities in every market, from commodities to labor to financial assets:
Demand: The quantity of a good or service that consumers are willing and able to purchase at various prices. The law of demand states that, all else equal, as price increases, quantity demanded decreases. The demand curve slopes downward. Demand shifts when non-price factors change — income, preferences, prices of related goods, expectations, and the number of buyers.
Supply: The quantity of a good or service that producers are willing and able to offer at various prices. The law of supply states that, all else equal, as price increases, quantity supplied increases. The supply curve slopes upward. Supply shifts when production costs change, technology improves, input prices change, government policies change, or the number of sellers changes.
Market equilibrium: The price at which quantity demanded equals quantity supplied. At this price, there is no surplus or shortage. Any disturbance to equilibrium (a demand or supply shift) creates a new equilibrium price and quantity. Understanding how equilibrium shifts is the basis for predicting price changes in any market.
Elasticity
Elasticity measures the responsiveness of one variable to changes in another. It's one of the most practically useful concepts in microeconomics:
Price elasticity of demand: Measures how much quantity demanded changes when price changes. Demand is elastic (elasticity > 1) when consumers are highly responsive to price changes — luxury goods, products with many substitutes. Demand is inelastic (elasticity < 1) when consumers are not very responsive — necessities, addictive products, goods with few substitutes. A company with inelastic demand for its products has significant pricing power, which is valuable information for equity analysis.
Income elasticity of demand: Measures how quantity demanded changes as income changes. Normal goods have positive income elasticity (demand rises with income). Inferior goods have negative income elasticity (demand falls as income rises). Luxury goods have income elasticity greater than 1. This concept helps analysts understand how different sectors perform during economic expansions and contractions.
Cross-price elasticity: Measures how the demand for one good changes when the price of another good changes. Positive cross-price elasticity indicates substitutes (Coke and Pepsi). Negative cross-price elasticity indicates complements (cars and gasoline). This is essential for competitive analysis and understanding industry dynamics.
Consumer and Producer Surplus
Surplus measures the benefit that market participants receive from trade:
Consumer surplus: The difference between what consumers are willing to pay and what they actually pay. Graphically, it's the area between the demand curve and the market price. Higher consumer surplus generally indicates a market that is delivering significant value to buyers.
Producer surplus: The difference between the market price and the minimum price at which producers are willing to sell. It represents the benefit to producers from selling at the market price. Producer surplus is closely related to profit, though not identical (it includes fixed costs recovery).
Total surplus and efficiency: The sum of consumer and producer surplus represents the total welfare from trade. Competitive markets maximize total surplus. Government interventions (price controls, taxes, subsidies) can create deadweight losses — reductions in total surplus that represent economic inefficiency.
Market Structures
The CFA curriculum covers four market structure models, each with distinct implications for pricing, profitability, and investment analysis:
Feature
Perfect Competition
Monopolistic Competition
Oligopoly
Monopoly
Number of firms
Very many
Many
Few
One
Product differentiation
None (identical)
Some
Some to significant
Unique (no substitutes)
Barriers to entry
None
Low
High
Very high
Pricing power
None (price taker)
Some
Significant
Considerable
Long-run economic profit
Zero
Zero
Positive possible
Positive possible
Real-world examples
Agricultural commodities
Restaurants, retail
Airlines, telecom, auto
Utilities, patents
For investment analysts, market structure analysis is crucial. Companies in oligopolistic or monopolistic markets tend to earn higher returns on invested capital because barriers to entry protect their profits. Companies in highly competitive markets tend to earn returns that barely exceed their cost of capital. Warren Buffett's concept of an "economic moat" is essentially a market structure argument — companies with wide moats operate in market structures that protect above-normal profits.
Oligopoly deserves special attention because many of the world's largest publicly traded companies operate in oligopolistic markets. Game theory concepts — particularly the Nash equilibrium, the prisoner's dilemma, and models of collusion and competition — help explain how firms in oligopolistic markets interact. The kinked demand curve model, the Cournot model (quantity competition), and the Bertrand model (price competition) each describe different oligopolistic behaviors.
Macroeconomics: The Big Picture
Macroeconomics studies the economy as a whole — total output, employment, price levels, interest rates, and economic growth. For investment professionals, macroeconomic analysis is essential for asset allocation, interest rate forecasting, and understanding the environment in which individual companies operate.
Gross Domestic Product (GDP)
GDP is the total market value of all final goods and services produced within a country during a specific period. It's the broadest measure of economic activity and the most important single number in macroeconomics:
Expenditure approach: GDP = C + I + G + (X - M), where C is consumer spending, I is business investment, G is government spending, and (X - M) is net exports. In the US, consumer spending accounts for roughly 68% of GDP, making it the dominant driver of economic activity.
Nominal vs. real GDP: Nominal GDP is measured in current prices. Real GDP adjusts for inflation, giving a more accurate picture of actual output growth. The GDP deflator (nominal GDP / real GDP) measures the overall price level change.
GDP growth rate: The percentage change in real GDP from one period to the next. This is the headline number that financial markets react to. A recession is commonly defined as two consecutive quarters of negative real GDP growth.
Aggregate Demand and Aggregate Supply
The AD/AS model is the macroeconomic equivalent of demand and supply:
Aggregate demand (AD): The total demand for all goods and services in an economy at various price levels. The AD curve slopes downward because higher price levels reduce real wealth (wealth effect), raise interest rates (interest rate effect), and make exports more expensive (exchange rate effect). AD shifts when government spending changes, tax policy changes, monetary policy changes, or consumer/business confidence shifts.
Short-run aggregate supply (SRAS): The total output firms are willing to produce at various price levels in the short run, when some input prices (especially wages) are sticky. The SRAS curve slopes upward. It shifts when input costs change, productivity changes, or supply shocks occur (e.g., oil price spikes).
Long-run aggregate supply (LRAS): The economy's potential output when all prices and wages are fully flexible. LRAS is vertical at the full-employment level of output, meaning that in the long run, changes in aggregate demand only affect the price level, not real output. LRAS shifts when the labor force grows, capital stock increases, or technology improves.
The interaction of AD, SRAS, and LRAS determines the economy's short-run equilibrium (current output and price level) and explains how the economy adjusts over time. When AD exceeds LRAS, the economy is "overheating" — output is above potential, unemployment is below natural rate, and inflationary pressures build. When AD falls below LRAS, the economy is in recession — output is below potential, unemployment rises, and deflationary pressures emerge.
Fiscal and Monetary Policy
Governments and central banks use two main sets of tools to manage the economy:
Fiscal policy: Government decisions about taxation and spending. Expansionary fiscal policy (lower taxes, higher spending) shifts AD rightward, stimulating growth but potentially increasing deficits and inflation. Contractionary fiscal policy (higher taxes, lower spending) shifts AD leftward, slowing growth but reducing deficits and inflationary pressure. Fiscal policy faces implementation lags (legislative process) and can be limited by political constraints.
Monetary policy: Central bank decisions about money supply and interest rates. Expansionary monetary policy (lower interest rates, quantitative easing) stimulates borrowing, investment, and spending. Contractionary monetary policy (higher interest rates, quantitative tightening) slows the economy by making borrowing more expensive. Monetary policy operates through several channels: interest rate channel, credit channel, asset price channel, exchange rate channel, and expectations channel.
Understanding how fiscal and monetary policy interact is essential for investment analysis. When both are expansionary (as in 2020-2021), asset prices tend to rise broadly. When monetary policy tightens while fiscal remains loose (as in 2022-2023), the result is often higher interest rates and mixed equity performance. The policy mix affects interest rates, currency values, corporate earnings, and risk premiums — all of which drive investment returns.
Business Cycles
Economies move through recurring cycles of expansion and contraction. The CFA curriculum covers the four phases of the business cycle and their implications for investment strategy:
Expansion: Rising GDP, falling unemployment, rising corporate profits, and increasing consumer confidence. Interest rates typically rise as the central bank tries to prevent overheating. Equities tend to perform well, particularly cyclical sectors (consumer discretionary, industrials, technology).
Peak: The economy is operating at or above potential. Inflationary pressures are building. The central bank may be tightening aggressively. Late-cycle investments (commodities, inflation-protected bonds) tend to perform relatively well.
Contraction (recession): Falling GDP, rising unemployment, declining corporate profits, and decreasing consumer confidence. The central bank typically cuts rates. Defensive sectors (utilities, healthcare, consumer staples) tend to outperform. Government bonds rally as interest rates fall.
Trough: The economy hits bottom. Leading indicators start to turn positive. This is often the best time to invest in equities, though sentiment is typically the worst. Early-cycle investments (small-cap stocks, high-yield bonds, cyclical sectors) tend to lead the recovery.
Business cycle analysis is directly relevant to asset allocation. The classic "investment clock" framework maps asset class preferences to cycle phases, helping portfolio managers make tactical allocation decisions. However, accurately identifying where we are in the cycle in real time is notoriously difficult — cycles vary in length and intensity, and economic data is published with lags.
Inflation, Unemployment, and the Phillips Curve
The relationship between inflation and unemployment is one of the most studied and debated topics in macroeconomics:
Inflation: A sustained increase in the general price level. The CFA curriculum covers cost-push inflation (rising input costs), demand-pull inflation (excess demand), and monetary inflation (excessive money supply growth). Moderate inflation (around 2%) is considered healthy; deflation and hyperinflation are both destructive.
Unemployment: The percentage of the labor force that is actively seeking but unable to find work. The natural rate of unemployment (also called the non-accelerating inflation rate of unemployment, or NAIRU) is the unemployment rate consistent with stable inflation. It includes frictional unemployment (people between jobs) and structural unemployment (skills mismatch) but not cyclical unemployment (caused by recessions).
The Phillips Curve: Originally proposed as a stable inverse relationship between inflation and unemployment — lower unemployment leads to higher inflation, and vice versa. The short-run Phillips Curve does show this trade-off. But the long-run Phillips Curve is vertical at the natural rate of unemployment, meaning there is no long-run trade-off between inflation and unemployment. Attempts to permanently reduce unemployment below the natural rate through expansionary policy will only result in accelerating inflation.
The breakdown of the stable Phillips Curve relationship in the 1970s (stagflation — simultaneous high inflation and high unemployment) led to important advances in macroeconomic theory, including the expectations-augmented Phillips Curve and rational expectations theory. For investment analysts, the key takeaway is that the inflation-unemployment trade-off depends critically on inflation expectations. When expectations are anchored (as they were from the 1990s to 2020), the central bank has more room to support employment without triggering inflation spirals.
International Trade and Capital Flows
The CFA economics curriculum covers international trade theory and its implications for investment:
Comparative advantage: Countries benefit from trade by specializing in goods where they have the lowest opportunity cost. This principle explains why international trade increases total welfare, even when one country is more efficient at producing everything. In practice, comparative advantage determines trade patterns, industry specialization, and the economic structure of different countries.
Trade barriers: Tariffs, quotas, voluntary export restraints, and non-tariff barriers all restrict trade. While they may protect domestic industries in the short run, they generally reduce economic efficiency and welfare. Trade policy is increasingly important for investment analysis as geopolitical tensions reshape global supply chains.
Balance of payments: The current account (trade in goods and services, income, transfers) and the capital/financial account (investment flows) must sum to zero. A country with a current account deficit must have a capital account surplus (foreign capital inflows) to finance it. The US has run persistent current account deficits for decades, financed by foreign purchases of US assets (particularly Treasury bonds).
Capital flows: Foreign direct investment (FDI), portfolio investment, and bank lending flow across borders in response to differences in return expectations, risk perceptions, and institutional quality. Understanding capital flows is essential for currency analysis and for evaluating emerging market investments.
Exchange Rates
Exchange rate analysis is one of the most important applications of economics in the CFA curriculum, particularly at Level II where it receives significant coverage:
Spot and forward rates: The spot rate is the current exchange rate for immediate delivery. The forward rate is the rate agreed today for delivery at a future date. The forward rate is determined by the interest rate differential between two currencies (covered interest rate parity).
Purchasing power parity (PPP): In the long run, exchange rates should adjust so that identical goods cost the same in different countries when expressed in a common currency. Absolute PPP is rarely observed in practice, but relative PPP (currencies with higher inflation tend to depreciate) holds reasonably well over long periods. PPP is useful for identifying undervalued and overvalued currencies.
Interest rate parity: The relationship between spot rates, forward rates, and interest rate differentials. Covered interest rate parity is an arbitrage relationship that holds precisely. Uncovered interest rate parity (the idea that currencies with higher interest rates will depreciate to offset the yield advantage) is a theoretical proposition that often fails in practice — the "carry trade" exploits this failure.
Exchange rate determination models: The monetary approach, the asset market approach, and the balance of payments approach each provide different frameworks for understanding exchange rate movements. In practice, short-term exchange rate movements are notoriously difficult to predict, driven by capital flows, central bank policy, risk sentiment, and geopolitical events.
Central Banks and Monetary Policy Tools
Central banks are the most important institutional actors in financial markets. Their decisions on interest rates and money supply directly affect bond yields, equity valuations, currency values, and credit availability:
Policy rate: The short-term interest rate that the central bank targets. In the US, this is the federal funds rate. Changes in the policy rate ripple through the entire yield curve and affect all financial asset prices.
Open market operations: Buying and selling government securities to influence money supply and short-term interest rates. When the central bank buys bonds, it injects money into the banking system (expanding the money supply). When it sells bonds, it drains money.
Reserve requirements: The minimum fraction of deposits that banks must hold in reserve. Lowering reserve requirements allows banks to lend more, expanding the money supply. Raising them restricts lending.
Quantitative easing (QE): Large-scale purchases of longer-term securities (government bonds, mortgage-backed securities) to lower long-term interest rates when the policy rate is already near zero. QE became a major tool after the 2008 crisis and was used again massively during COVID-19.
Forward guidance: Communication about the likely future path of monetary policy. By shaping expectations, central banks can influence financial conditions even before changing actual policy rates. Forward guidance has become increasingly important as a monetary policy tool.
Economic Growth Models
Long-term economic growth determines the sustainable increase in living standards and is a key input to long-run capital market expectations:
Solow (neoclassical) growth model: Growth comes from three sources: labor force growth, capital accumulation, and technological progress (total factor productivity, or TFP). The model predicts that capital accumulation alone faces diminishing returns — each additional unit of capital produces less additional output. In the long run, sustained growth requires technological progress. The Solow model also predicts convergence — poorer countries should grow faster than rich ones as they accumulate capital, eventually converging to similar income levels (conditional on institutions and policies).
Endogenous growth theory: Unlike the Solow model, endogenous growth models treat technological progress as the result of deliberate investment in research, education, and knowledge creation. These models suggest that government policies (R&D subsidies, education funding, intellectual property protection) can permanently affect long-run growth rates. There may not be diminishing returns to knowledge accumulation, meaning sustained growth is possible without exogenous technological change.
For investment analysts, growth models inform long-term capital market assumptions. Countries with favorable demographics (growing labor force), strong institutions, and high investment in education and technology are expected to grow faster. These growth expectations drive equity return forecasts, currency valuations, and long-term portfolio allocations.
Economics Across the CFA Levels
The economics curriculum evolves across the three CFA levels:
Level I (6–9%): Covers the full breadth of micro and macroeconomics. Demand and supply, market structures, GDP, AD/AS, fiscal and monetary policy, international trade, and exchange rate basics. The emphasis is on understanding core concepts and frameworks.
Level II (5–10%): Deepens into exchange rate determination models (the carry trade, PPP, covered and uncovered interest rate parity), economic growth models, and the relationship between economics and asset valuation. The emphasis shifts to application — using economic analysis to inform investment decisions.
Level III (5–10%): Economics appears primarily in the context of capital market expectations for portfolio construction. You use economic analysis to develop forecasts for asset class returns, volatilities, and correlations. The emphasis is on synthesis — combining economic analysis with portfolio theory to make allocation decisions.
Connecting Economics to Other CFA Topics
Economics is deeply intertwined with virtually every other topic in the CFA curriculum:
Fixed Income: Interest rates are determined by central bank policy, inflation expectations, and economic growth. The yield curve reflects the market's expectations for future economic conditions.
Equity Investments: Corporate earnings are driven by economic conditions. Industry analysis uses market structure concepts. Discount rates incorporate risk premiums that reflect economic uncertainty.
Portfolio Management: Asset allocation depends on capital market expectations, which are derived from economic analysis. Tactical allocation is essentially an economic call — overweighting asset classes expected to benefit from current economic conditions. See our Quantitative Methods guide for the mathematical tools used to implement these portfolio decisions.
Alternative Investments: Real estate values depend on economic growth and interest rates. Commodity prices are driven by supply and demand dynamics. Infrastructure investments are affected by government fiscal policy.
Ethics: Understanding economics helps analysts provide suitable recommendations that account for macroeconomic conditions and their impact on client portfolios.
Study Tips for CFA Economics
Economics can feel overwhelming because of its breadth, but a structured approach makes it manageable:
Focus on frameworks, not memorization. Economics is about understanding how systems work, not memorizing facts. If you understand how AD/AS works, you can reason through any scenario the exam throws at you.
Draw diagrams. Supply and demand curves, AD/AS models, the Phillips Curve, and market structure diagrams all become much clearer when you draw them. Practice shifting curves and identifying new equilibria.
Connect theory to current events. Read financial news with your economics knowledge in mind. When the Fed raises rates, trace through the channels: how does this affect AD, the yield curve, the dollar, and equity valuations? Real-world application makes the material stick.
Don't skip exchange rates. Exchange rate material is heavily tested at Level II and is one of the more challenging areas. Start building your understanding at Level I so you're prepared for the deeper treatment later.
Economics provides the context that makes all other financial analysis meaningful. A valuation model is only as good as the assumptions that feed it, and those assumptions — growth rates, interest rates, inflation, currency movements — are fundamentally economic variables.
Clarity helps you see how economic forces affect your own portfolio. When interest rates rise, you can track the impact on your bond holdings in real time. When the dollar strengthens, you can see how your international investments respond. Connecting economic theory to your actual financial outcomes is one of the most powerful ways to deepen your understanding of the material.