MGU Social Science Series — Economics

Library Textbook Edition

Appendices A through N

Full Back Matter

MGU Social Science Series · Economics: Principles of Microeconomics and Macroeconomics · Library Textbook Edition

Full Back Matter:
Appendices &
Reference

Mathematics and graph skills, economic reasoning, formula reference, market structure, policy analysis, macroeconomic measurement, money and banking, international economics, vocabulary, glossary, selected answers, and index

■ 14 Appendices ■

■ Reference Section • Companion to All 30 Chapters ■

Completes the Economics Library Textbook Edition · For use alongside Chapters 1 through 30

Back Matter — Front Matter

Purpose and Overview

The appendices that follow function as a reference work as well as a course companion. Economics is a cumulative subject — a term introduced in Chapter 2 reappears in Chapter 22, a formula learned in Chapter 9 resurfaces in Chapter 29. Rather than forcing students to search backward through chapters, this back matter collects the mathematics, vocabulary, formulas, graphs, and reasoning tools of the entire course into one place.

Use these appendices in three ways: as a pre-reading refresher before a difficult chapter, as a study guide before an exam, and as a lifelong reference after the course ends. Economic reasoning is a transferable skill, and the tools collected here — opportunity cost, elasticity, GDP accounting, policy analysis steps — apply far beyond any single classroom.

14Appendices

100+Glossary Terms

16Formula Sets

30Chapters Supported

Economics uses arithmetic, percentages, ratios, averages, simple equations, tables, and graphs. This appendix reviews the mathematical tools used throughout the course. None require calculus or advanced statistics. Mastering them makes every chapter easier.

A.1 Percentages

A percentage expresses a part as a fraction of a whole, multiplied by 100.

Formula

Percentage = (Part ÷ Whole) × 100

Percentage Change = ((New Value − Old Value) ÷ Old Value) × 100

Example A.1.1

Calculating a percentage and a percentage change

Situation30 out of 200 workers are unemployed. GDP rises from $800 billion to $840 billion.
Percentage(30 ÷ 200) × 100 = 15%
Percentage change((840 − 800) ÷ 800) × 100 = 5%

Key takeaway: Percentages appear throughout this textbook in inflation rates, growth rates, unemployment rates, elasticity, and policy analysis.

A.2 Ratios

A ratio compares two quantities. The debt-to-GDP ratio compares public debt to the size of the economy: Public Debt ÷ GDP. A ratio of 0.90 means debt equals 90 percent of GDP.

A.3 Averages

An average (arithmetic mean) is the sum of values divided by the number of values: Sum of Values ÷ Number of Values. Averages appear in GDP per capita, average wages, average costs, and price indexes.

A.4 Growth Rates

A growth rate is a percentage change over time, typically one year. Small differences in growth rates compound dramatically over decades — this is the Rule of 70:

Rule of 70

Doubling Time (years) ≈ 70 ÷ Annual Growth Rate (%)

A country growing at 1% doubles output roughly every 70 years; at 3%, roughly every 24 years.

A.5 Index Numbers

An index number expresses a value relative to a base period, set equal to 100: Index Value = (Current Value ÷ Base Value) × 100. Used for the Consumer Price Index, real GDP calculations, and price level comparisons. To convert nominal to real using an index: Real Value = (Nominal Value ÷ Price Index) × 100.

A.6 Slope (Introductory Level)

Slope measures the rate at which one variable changes when another changes: Slope = ΔY ÷ ΔX. A negative slope (demand curves) means variables move in opposite directions; a positive slope (supply curves) means they move together. Slope does not equal elasticity — elasticity adjusts slope for scale.

A.7 Reading Tables

Read the title, identify headings and units, note the direction of change across rows or columns, calculate differences or percentage changes, and look for patterns across the whole table.

Common Mistake

Confusing the level of a value with the change in a value. A country can have high GDP and a low GDP growth rate at the same time.

A.8 Reading Line Graphs

Read axis labels and units, identify the direction of the line, note where major changes occur, and compare trends when multiple lines appear on one graph.

Common Mistake

Assuming a falling line means a negative value. A line falling from 5% to 2% is still positive — growth slowed, but the variable still grew.

A.9 Reading Bar Graphs

Read axis labels and units, compare bar heights or lengths, identify the largest and smallest values, and compare groups of bars across categories.

A.10 Reading Supply and Demand Graphs

Price (P) is on the vertical axis; quantity (Q) is on the horizontal axis. The demand curve slopes downward; the supply curve slopes upward; equilibrium is the intersection.

Change	What Moves	What Happens to Curve
Change in quantity demanded or supplied	Movement along the curve	Curve stays in place
Change in demand or supply	Shift of the curve	Entire curve moves left or right

A.11 Graph Shifts

Direction	Demand	Supply
Shifts right (increase)	Higher income, substitute price up, complement price down, population growth, favorable tastes, positive expectations	Lower input costs, better technology, favorable conditions, more sellers, subsidy added, positive expectations
Shifts left (decrease)	Lower income, substitute price down, complement price up, population decline, unfavorable tastes, negative expectations	Higher input costs, worse technology, unfavorable conditions, fewer sellers, new tax, negative expectations

Simultaneous Shifts

When two shifts occur at once, one result is always clear, but the other requires information about the relative size of the shifts.

A.12 Cause-and-Effect Reasoning

Trace causal chains by asking: What is the initial change? Through what mechanism does the effect operate? What is the direction? Are there feedback effects? Is this short-run or long-run?

A.13 Correlation and Causation

Correlation means two variables move together; causation means one produces a change in the other. Apparent correlation may reflect a third variable, reverse causation, or coincidence. Economists use controlled experiments, natural experiments, historical evidence, and statistics to assess causation.

Practice AMath and Graph Skills Review

Calculate the percentage change when a price rises from $40 to $46.
A country's debt is $18 trillion and its GDP is $20 trillion. Find the debt-to-GDP ratio.
Find the average of $32,000, $35,000, and $41,000.
Using the Rule of 70, find the doubling time for 5% annual growth.
The price index rises from 100 to 112. State the percentage price increase.
Explain the difference between a movement along a demand curve and a shift of the demand curve.

B.1 Scarcity

Scarcity exists when wants exceed available resources. It is the fundamental economic condition, applying to individuals, firms, governments, and societies. Scarcity does not mean poverty — even wealthy nations face scarcity, since more could always be produced than resources allow. Scarcity forces tradeoffs.

B.2 Choice

Every economic agent makes choices about limited resources. Choices involve alternatives, constraints, incentives, and consequences.

B.3 Opportunity Cost

Opportunity cost is the value of the next best alternative foregone — not the sum of all alternatives. It includes explicit (monetary) and implicit (non-monetary) costs.

Example B.3.1

Opportunity cost in three contexts

PersonalThe opportunity cost of attending college is the income foregone by not working full-time, plus tuition and time costs.
PublicThe opportunity cost of $1 billion in highway spending is the best alternative use of that money — tax reduction, education spending, or debt reduction.
TimeThe opportunity cost of an hour of leisure is the output that hour of work could have produced.

Key takeaway: Economic profit accounts for both explicit and implicit opportunity costs.

B.4 Incentives

Incentives influence the costs or benefits of choices. Positive incentives (subsidies, bonuses, lower prices) make an action more attractive; negative incentives (taxes, fines, higher prices) make it less attractive. Policy design requires attention to perverse incentives — unintended incentives that work against a policy's goal.

B.5 Marginal Thinking

Marginal benefit (MB) is the additional benefit from one more unit; marginal cost (MC) is the additional cost. The decision rule: continue while MB exceeds MC; stop when MC exceeds MB. The optimum is where MB = MC.

Sunk Costs

Costs already paid and unrecoverable should not influence marginal decisions — only future costs and benefits are relevant.

B.6 Tradeoffs

A tradeoff means getting more of one thing requires giving up some of another. Common tradeoffs include efficiency versus equity, present versus future consumption, short-run employment versus price stability, growth versus environmental protection, and freedom versus security.

B.7 Efficiency

Type	Definition
Productive efficiency	Producing at the lowest possible cost given technology and resources
Allocative efficiency	Producing the combination of goods and services people value most
Pareto efficiency	No one can be made better off without making someone else worse off

B.8 Equity

Horizontal equity means equal treatment of people in equal circumstances; vertical equity means different treatment of people in unequal circumstances. Efficiency and equity sometimes conflict — a genuine tradeoff involving value judgments.

B.9 Short-Run and Long-Run Analysis

The short run is a period in which some inputs are fixed; the long run is long enough for all inputs to adjust. A policy beneficial in the short run may be costly in the long run, and vice versa.

B.10 Positive and Normative Economics

Type	Definition	Example
Positive	Factual claims evaluable with evidence	"A 10% minimum wage increase reduces low-skill employment 1–3%."
Normative	Value judgments about what should be	"The minimum wage should be raised to $15."

B.11 Models and Assumptions

A model is a simplified representation designed to highlight key relationships. A model is not wrong because its assumptions are unrealistic; it is judged by whether it explains and predicts real phenomena. Common assumptions: rational behavior, ceteris paribus, perfect information, and competitive markets as benchmarks.

B.12 Unintended Consequences

Unintended consequences arise because systems are complex and interconnected, people adjust behavior to new incentives, and second-order effects are hard to predict.

Example B.12.1

A price ceiling on rent

IntentKeep housing affordable for tenants.
Unintended effectReduced incentive to build new housing and maintain existing units, potentially shrinking the long-run supply of affordable housing.

Key takeaway: Awareness of unintended consequences supports careful analysis, not an automatic rejection of all policy intervention.

Practice BEconomic Reasoning Review

Explain why scarcity does not mean poverty. Give an example involving a wealthy individual or nation.
A worker calculates the opportunity cost of going to graduate school. List the explicit and implicit costs involved.
Identify a real-world policy and explain one incentive it creates — intended or perverse.
Classify each statement as positive or normative: (a) "Raising tariffs reduces import volume." (b) "Tariffs should be raised to protect domestic jobs."
Describe a personal decision where a sunk cost almost — or did — influence your thinking incorrectly.

C.1 Production Possibilities Frontier (PPF)

Shows the maximum combinations of two goods an economy can produce using all resources and technology efficiently. The frontier bows outward due to increasing opportunity costs. Points on the frontier are efficient; points inside are inefficient; points outside are currently unattainable. The slope at any point equals the opportunity cost of the good on the horizontal axis. Economic growth shifts the entire frontier outward.

C.2 Demand Curve

Shows the relationship between price and quantity demanded, holding other factors constant. Slopes downward. Movement along the curve is caused by a change in the good's own price; a shift is caused by income, related prices, tastes, expectations, or population.

C.3 Supply Curve

Shows the relationship between price and quantity supplied. Slopes upward. Movement along the curve follows a price change; a shift follows changes in input costs, technology, taxes or subsidies, expectations, number of sellers, or natural conditions.

C.4 Market Equilibrium Graph

Equilibrium price (P*) is where demand and supply intersect, with no tendency to change; equilibrium quantity (Q*) is the amount bought and sold there. Above equilibrium price: surplus, downward pressure. Below: shortage, upward pressure.

C.5 Shortages and Surpluses

Condition	Cause	Market Pressure
Shortage	Price set below equilibrium	Upward pressure on price
Surplus	Price set above equilibrium	Downward pressure on price

Price Controls

Price ceilings below equilibrium create persistent shortages; price floors above equilibrium create persistent surpluses.

C.6 Elasticity Diagrams

Curve Shape	Classification	Meaning
Vertical line	Perfectly inelastic	Quantity does not change regardless of price
Steep curve	Inelastic, \|E_d\| < 1	% ΔQ less than % ΔP
45° reference	Unit elastic, \|E_d\| = 1	% ΔQ equals % ΔP
Flat curve	Elastic, \|E_d\| > 1	% ΔQ greater than % ΔP
Horizontal line	Perfectly elastic	Any price rise drops quantity to zero

C.7 Consumer and Producer Surplus

Consumer surplus is the area below the demand curve and above the equilibrium price — willingness to pay minus actual payment. Producer surplus is the area above the supply curve and below equilibrium price. Total surplus = consumer surplus + producer surplus. Competitive equilibrium maximizes total surplus; distortions create deadweight loss.

C.8 Cost Curves

Curve	Definition	Shape
Total Fixed Cost (TFC)	Costs that do not change with output	Horizontal line
Total Variable Cost (TVC)	Costs that change with output	Rising, S-shaped
Total Cost (TC)	TFC + TVC	Parallel to TVC, shifted up
Average Fixed Cost (AFC)	TFC ÷ Q	Continuously declining
Average Variable Cost (AVC)	TVC ÷ Q	U-shaped
Average Total Cost (ATC)	TC ÷ Q	U-shaped, above AVC
Marginal Cost (MC)	ΔTC ÷ ΔQ	U-shaped; crosses AVC and ATC at their minimums

C.9 Market Structure Comparison

Feature	Perfect Competition	Monopolistic Competition	Oligopoly	Monopoly
Number of firms	Many	Many	Few	One
Product type	Standardized	Differentiated	Standardized or differentiated	Unique
Price control	None	Some	Significant	Full
Barriers to entry	None	Low	High	Very high
Long-run profit	Zero	Zero	Possible	Possible
Efficiency	Allocative and productive	Some inefficiency	Varies	Generally inefficient

C.10 Externality Diagrams

Type	Condition	Outcome	Correction
Negative (e.g., pollution)	Social cost > private cost	Overproduction	Pigouvian tax, regulation, cap and trade
Positive (e.g., education)	Social benefit > private benefit	Underproduction	Subsidy, public provision, mandates

C.11 Labor Market Graph

The demand for labor (from firms) slopes downward as marginal product diminishes with employment; the supply of labor (from workers) typically slopes upward. Equilibrium wage and employment occur at the intersection. Labor demand shifts with product demand, productivity, and capital prices; labor supply shifts with population, immigration, education, and the opportunity cost of working.

Practice CMicroeconomics Graph Review

Draw a PPF and mark an inefficient point and an unattainable point.
Show a leftward shift in supply on a demand-and-supply graph and state the new equilibrium price and quantity.
Sketch elastic and inelastic demand curves and explain the difference in slope.
Shade consumer surplus and producer surplus on a standard equilibrium graph.
Sketch the relationship between MC, AVC, and ATC and explain why MC crosses both at their minimums.
Diagram a negative externality and show the deadweight loss from overproduction.

D.1 Circular Flow Model

Households supply factors of production to firms in factor markets; firms supply goods and services to households in product markets; money flows in the opposite direction. The complete model adds government (taxes, public goods, transfers), the financial sector (saving into investment), and the rest of the world (imports and exports).

D.2 GDP Components Chart

Expenditure Approach

GDP = C + I + G + (X − M)

Component	Symbol	Definition
Consumption	C	Household spending on goods and services
Investment	I	Business capital spending, residential construction, inventory change
Government Purchases	G	Government spending on goods and services (not transfers)
Net Exports	X − M	Exports minus imports

Scale

For most high-income countries, C is the largest GDP component, roughly 60–70%.

D.3 Labor Force Diagram

Core Formulas

Unemployment Rate = (Unemployed ÷ Labor Force) × 100

LFPR = (Labor Force ÷ Working-Age Population) × 100

Labor Force = Employed + Unemployed

D.4 Inflation Index Chart

Formula

Inflation Rate = ((CPI_current − CPI_prior) ÷ CPI_prior) × 100

CPI Limitations

Substitution bias, new goods bias, quality change bias, and limited geographic coverage all affect CPI accuracy.

D.5 Business Cycle Diagram

Phase	Description
Expansion	Real GDP rising; employment rising; unemployment falling
Peak	Maximum point of activity in the cycle
Recession	Real GDP falling at least two consecutive quarters; unemployment rising
Trough	Minimum point; end of the recession
Recovery	GDP rises again from the trough

D.6 Aggregate Demand and Aggregate Supply (AD-AS)

Curve	Slope	Shifts Right	Shifts Left
Aggregate Demand	Downward	Rising C, I, G, net exports; expansionary policy	Falling C, I, G, net exports; contractionary policy
Short-Run Aggregate Supply	Upward	Lower input costs, better technology, positive supply shocks	Higher input costs, adverse shocks, new regulation costs
Long-Run Aggregate Supply	Vertical at potential GDP	Growth in capital, labor, human capital, technology	Loss of productive capacity

D.7 Recessionary and Inflationary Gaps

A recessionary gap occurs when actual output is below potential GDP and unemployment exceeds the natural rate; AD intersects SRAS left of LRAS, and expansionary policy can close it. An inflationary gap occurs when actual output exceeds potential GDP and unemployment is below the natural rate; AD intersects SRAS right of LRAS, and contractionary policy or wage adjustment can close it.

D.8 Money Market Model (Introductory Level)

Money supply is a vertical line set by the central bank; money demand slopes downward, since lower interest rates reduce the opportunity cost of holding money. Equilibrium interest rate occurs at the intersection. Increasing money supply lowers the interest rate; decreasing it raises the rate.

D.9 Loanable Funds Model (Introductory Level)

Supply of loanable funds (saving) slopes upward; demand for loanable funds (investment borrowing) slopes downward. The equilibrium real interest rate balances saving and investment. Government deficits can crowd out private investment by raising demand for loanable funds and the interest rate.

D.10 Growth Comparison Graphs

Long-run real GDP per capita comparisons show that sustained growth is historically recent, that small growth-rate differences compound dramatically, and that institutions, technology, education, and investment are strongly associated with higher growth.

Practice DMacroeconomics Graph Review

Sketch the circular flow model and label factor markets and product markets.
Given C=$600B, I=$150B, G=$200B, X=$90B, M=$70B, calculate GDP.
Draw a business cycle diagram and label expansion, peak, recession, and trough.
Diagram an AD-AS graph showing a negative demand shock and the resulting recessionary gap.
Explain how an increase in the money supply affects the equilibrium interest rate in the money market model.
Show how a government budget deficit affects the loanable funds market and private investment.

E.1–E.2 Opportunity Cost and Comparative Advantage

Formulas

Opportunity Cost of X = Value of the Next Best Alternative to X

Opportunity Cost of Good A = Units of Good B given up ÷ Units of Good A gained

A producer has a comparative advantage in a good if it can produce it at lower opportunity cost than another producer. Steps: (1) calculate opportunity cost of each good for each producer; (2) the lower-opportunity-cost producer has the comparative advantage; (3) each producer specializes accordingly. Both gain from trade even if one has an absolute advantage in everything.

E.3 Percentage Change

% Change = ((New Value − Old Value) ÷ Old Value) × 100

E.4 Elasticity

E_d = % ΔQ_demanded ÷ % ΔPrice

E_s = % ΔQ_supplied ÷ % ΔPrice

E_I = % ΔQ_demanded ÷ % ΔIncome

E_XY = % ΔQ_{demanded of X} ÷ % ΔPrice of Y

Value	Classification
\|E_d\| > 1	Elastic demand
\|E_d\| = 1	Unit elastic demand
\|E_d\| < 1	Inelastic demand
E_I > 0	Normal good (luxury if > 1)
E_I < 0	Inferior good
E_XY > 0	Substitutes
E_XY < 0	Complements

E.5 Total Revenue and Elasticity

Total Revenue (TR) = Price × Quantity

Demand Elasticity	Price Rise → TR	Price Fall → TR
Elastic	Falls	Rises
Unit elastic	Unchanged	Unchanged
Inelastic	Rises	Falls

E.6–E.7 Costs and Profit

TC = TFC + TVC · ATC = TC ÷ Q · AVC = TVC ÷ Q · AFC = TFC ÷ Q · MC = ΔTC ÷ ΔQ

Accounting Profit = Total Revenue − Explicit Costs

Economic Profit = Total Revenue − Explicit Costs − Implicit Costs

Normal Profit = 0 Economic Profit

E.8–E.13 Macroeconomic Formulas

GDP = C + I + G + (X − M)

Unemployment Rate = (Unemployed ÷ Labor Force) × 100

Labor Force = Employed + Unemployed

LFPR = (Labor Force ÷ Working-Age Population) × 100

Inflation Rate = ((CPI_current − CPI_previous) ÷ CPI_previous) × 100

Real Value = (Nominal Value ÷ Price Index) × 100

Real GDP Growth = ((Real GDP_current − Real GDP_previous) ÷ Real GDP_previous) × 100

E.14 Exchange Rate Basics

The nominal exchange rate is the number of units of one currency needed to buy one unit of another. Appreciation: a currency buys more foreign currency than before — exports become more expensive for foreigners, imports cheaper domestically. Depreciation: the opposite.

Practice EFormula Application

Price rises from $2.00 to $2.50; quantity demanded falls from 100 to 80. Find E_d and classify it.
TFC = $500, TVC at Q=50 is $1,200. Find ATC.
Revenue = $640,000; explicit costs = $480,000; implicit costs = $90,000. Find economic profit.
C=$700B, I=$180B, G=$220B, X=$95B, M=$110B. Find GDP.
CPI rises from 128 to 133. Find the inflation rate.
A currency that buys 0.85 euros now buys 0.95 euros. Has it appreciated or depreciated? Explain the likely effect on exports.

F.1 Perfect Competition

Conditions: many buyers and sellers, standardized product, free entry and exit, perfect information. Firms are price takers; long-run economic profit is zero; firms produce at minimum ATC (productively efficient); price equals marginal cost (allocatively efficient). Perfect competition is a benchmark model, not a universal description of real markets.

F.2 Monopoly

Conditions: single seller, unique product, high barriers to entry (patents, resource control, government license, natural monopoly, network effects). The monopolist is a price maker, maximizes profit where MR = MC, and prices above marginal cost — creating deadweight loss with lower output and higher price than under perfect competition.

F.3 Monopolistic Competition

Conditions: many sellers, differentiated products, relatively easy entry and exit. Firms have some pricing power; short-run profit is possible, but long-run entry eliminates it; firms operate with excess capacity in the long run.

F.4 Oligopoly

Conditions: few dominant firms, standardized or differentiated products, significant barriers to entry. Firms are interdependent and engage in strategic behavior; game theory helps analyze interaction. Outcomes range from near-competitive to near-monopoly depending on rivalry or collusion.

F.5–F.6 Market Power and Barriers to Entry

Barrier Type	Example
Legal	Patents, copyrights, government licenses
Natural	Economies of scale (natural monopoly)
Resource control	Ownership of a key input
Network effects	Platforms (social media, operating systems)
Capital requirements	High startup costs
Brand loyalty	Strong customer preference for established firms

F.7 Product Differentiation

Real differentiation involves actual differences in ingredients, quality, features, or durability. Perceived differentiation involves branding, packaging, advertising, or reputation. Differentiation gives firms some pricing control and reduces demand elasticity.

F.8 Strategic Behavior

In oligopoly, firms anticipate rivals' responses — matching price cuts, undercutting, coordinating on high prices, or competing on non-price dimensions. The Prisoner's Dilemma shows why individually rational pricing decisions can produce collectively worse outcomes for the industry.

F.9 Efficiency and Welfare

Structure	Allocative Efficiency	Productive Efficiency	Long-Run Profit
Perfect Competition	Yes	Yes	Zero
Monopolistic Competition	No	No (excess capacity)	Zero
Oligopoly	Varies	Varies	Possible
Monopoly	No	No	Possible

F.10 Antitrust Concepts

Collusion is firms agreeing to fix prices, divide markets, or limit output — generally illegal. A cartel is a group acting as a coordinated monopolist. Predatory pricing means setting prices below cost to drive out rivals. Merger review is government scrutiny of large mergers to prevent excessive market concentration.

Practice FMarket Structure Review

Classify each market: a wheat farm, a smartphone operating system, a local water utility, a chain of coffee shops.
Explain why long-run economic profit is zero under perfect competition but can persist under monopoly.
Give one real or hypothetical example of a barrier to entry from each category in the table above.
Explain the Prisoner's Dilemma as it applies to oligopoly pricing.
Why might antitrust regulators block a merger between two large competitors?

Use the following steps when analyzing any policy question — whether a government regulation, a tax proposal, or a business decision with broad effects.

Policy Analysis Steps

Apply in order; not every step requires equal depth for every question

Identify the Economic Problem. What market failure, inefficiency, inequity, or coordination problem is the policy meant to address? Possible problems: negative or positive externalities, public good undersupply, information asymmetry, market power, poverty or inequality, macroeconomic instability.
Identify the Affected Groups. Who bears the costs? Who receives the benefits? Are effects concentrated or diffuse?
Explain the Incentive Structure. How does the policy change incentives? Could it create perverse incentives?
Separate Positive and Normative Claims. Which claims are factual and which involve value judgments?
Identify Short-Run and Long-Run Effects. How do effects change as people have more time to adjust?
Identify Efficiency and Equity Tradeoffs. Does the policy improve or harm efficiency? Improve or harm equity? Do the effects align or conflict?
Look for Unintended Consequences. What behaviors might arise that designers did not anticipate?
Evaluate Evidence. What do controlled studies, natural experiments, or historical data suggest?
Compare Alternatives. Could the same goal be achieved at lower cost or with fewer side effects?
State Uncertainty Clearly. Be honest about what is known confidently, what is likely, and what is speculative.

Example G.1

Applying the steps to a proposed sugar tax

ProblemNegative externality: sugar consumption is linked to public health costs borne partly by the broader healthcare system.
Affected groupsConsumers (especially lower-income, who spend a larger income share on sweetened drinks), beverage producers, and taxpayers who currently bear health costs.
IncentivesRaises the price of sugary drinks, encouraging substitution toward untaxed alternatives.
Positive vs. normativePositive: "The tax will reduce sugary drink purchases by some percentage." Normative: "The tax is justified because it protects public health."
Equity concernThe tax may be regressive, since lower-income households often spend a larger income share on the taxed good.

Key takeaway: A complete policy analysis weighs the externality correction against equity concerns and considers alternatives such as public health campaigns or targeted subsidies for healthy alternatives.

Practice GPolicy Analysis Practice

Apply the ten-step method to a proposed increase in the federal minimum wage.
Apply the ten-step method to a proposed subsidy for electric vehicle purchases.
Identify one policy debate in the news. Separate the positive claims from the normative claims being made by each side.

H.1 GDP

GDP is the market value of all final goods and services produced within a country's borders during a given period. Final goods are purchased by the end user; intermediate goods are excluded to avoid double-counting. GDP excludes household production, the informal economy, volunteer work, environmental quality, leisure, and income distribution.

H.2 Nominal vs. Real GDP

Measure	Definition	Use
Nominal GDP	Value of output at current prices	Current-dollar output
Real GDP	Value of output at base-year prices	Actual changes in output
GDP Deflator	(Nominal GDP ÷ Real GDP) × 100	Overall price level

H.3 GDP per Capita

GDP per capita is a rough measure of average material living standards. It does not measure health, life expectancy, inequality, environmental quality, personal freedom, or subjective well-being.

H.4–H.5 Unemployment

To count as unemployed, a person must be not employed, available for work, and actively searching in the past four weeks. The rate does not count discouraged workers or reflect underemployment or job quality.

Type	Cause	Nature
Frictional	Normal job search and transition	Temporary; inevitable
Structural	Skills mismatch	Persistent; may require retraining
Cyclical	Reduced demand during recessions	Temporary; tied to business cycle
Seasonal	Regular seasonal demand patterns	Predictable; expected in certain industries

Natural Rate

The natural rate of unemployment consists of frictional and structural unemployment only, with zero cyclical unemployment.

H.6 Inflation

Inflation is a sustained increase in the general price level, not a rise in one price. Deflation is a sustained decrease; disinflation is a falling-but-still-positive inflation rate; hyperinflation is extremely rapid inflation. Costs of inflation include eroded purchasing power, planning uncertainty, redistribution from creditors to debtors, menu costs, and shoe-leather costs.

H.7–H.8 Business Cycles and Indicators

Indicator Type	Description	Example
Leading	Change before GDP changes	Stock prices, building permits, new orders
Coincident	Change at the same time as GDP	Employment, personal income, industrial production
Lagging	Change after GDP changes	Unemployment rate, loan interest rates

Practice HMacroeconomic Measurement Review

Classify each unemployment scenario as frictional, structural, cyclical, or seasonal.
Explain why GDP per capita can rise while inequality also rises.
Distinguish disinflation from deflation using a numeric example.
Identify whether building permits are a leading, coincident, or lagging indicator and explain why.

I.1–I.2 Functions and Types of Money

Money serves three functions: medium of exchange, unit of account, and store of value. Effective money is widely accepted, durable, portable, divisible, and limited in supply.

Type	Definition	Example
Commodity money	Has intrinsic value	Gold coins, silver
Fiat money	No intrinsic value; money by decree and convention	Paper currency, digital bank balances

I.3–I.4 Money Supply and Banks

M1 includes currency and demand deposits; M2 adds savings deposits, money market accounts, and small time deposits. Banks channel saving into investment, create liquidity, diversify risk, and assess creditworthiness. Fractional reserve banking allows a single deposit to generate a much larger total of deposits across the banking system.

I.5 Interest Rates

Real Interest Rate ≈ Nominal Interest Rate − Inflation Rate

Higher interest rates reduce investment and durable-goods consumption, increase saving, and tend to strengthen the currency.

I.6–I.7 Central Banks and Tools

Tool	Mechanism	Effect on Money Supply
Open market operations	Buy or sell government bonds	Buy → MS increases; sell → MS decreases
Reserve requirements	Minimum reserve fraction	Lower → MS increases; higher → MS decreases
Discount rate	Rate for lending to banks	Lower → MS increases; higher → MS decreases

I.8 Expansionary and Contractionary Monetary Policy

Policy	Goal	Risk
Expansionary	Stimulate borrowing, investment, output during recessions	Inflation if overdone
Contractionary	Slow spending to reduce inflationary pressure	Reduced output, higher unemployment if overdone

I.9–I.10 Fiscal Policy and Automatic Stabilizers

Expansionary fiscal policy raises spending or cuts taxes to stimulate demand during recessions; contractionary fiscal policy does the opposite to cool an overheating economy. Automatic stabilizers — unemployment insurance, progressive income taxes — adjust without new legislation.

I.11 Deficits and Public Debt

Term	Definition
Budget deficit	Spending exceeds revenue in a year
Budget surplus	Revenue exceeds spending in a year
Public debt	Accumulated stock of past deficits minus surpluses

Crowding Out

Government borrowing can compete with private borrowing for loanable funds, raising interest rates and reducing private investment.

I.12 Policy Tradeoffs

Policy Goal	Conflicts With
Low inflation	Full employment (short-run Phillips Curve tradeoff)
Stimulating growth	Fiscal sustainability
Expansionary monetary policy	Risk of asset bubbles or inflation

Practice IMoney, Banking, and Policy Review

Explain why fiat money requires public trust to function.
A central bank buys government bonds. Explain the effect on the money supply and interest rates.
Distinguish expansionary from contractionary fiscal policy with one example of each.
Explain crowding out using the loanable funds model.
Why might a central bank face a tradeoff between low inflation and full employment in the short run?

J.1–J.2 Imports, Exports, and Trade Balance

Net Exports = Exports − Imports

Positive: trade surplus. Negative: trade deficit. Zero: balanced trade.

J.3 Tariffs and Quotas

Tool	Effect
Tariff	Tax on imports; raises domestic price, reduces imports, generates revenue, creates deadweight loss
Quota	Quantity limit on imports; similar price/quantity effects but generates no government revenue unless licenses are auctioned

J.4 Trade Agreements

Bilateral agreements involve two countries; regional agreements involve a group; multilateral agreements involve many countries (e.g., WTO agreements). Agreements typically reduce tariffs, quotas, and regulatory barriers and may address intellectual property, investment, labor, and environmental standards.

J.5 Exchange Rates

Appreciation raises a currency's value, making imports cheaper and exports more expensive abroad, potentially widening a trade deficit. Depreciation does the opposite. Exchange rates respond to interest rate differentials, inflation, trade flows, expectations, and capital flows.

J.6 Balance of Payments (Introductory Level)

The current account tracks trade in goods and services, income, and transfers. The capital and financial account tracks investment flows. The two must sum to approximately zero: a current account deficit is financed by a capital account surplus.

J.7–J.8 Global Supply Chains and Globalization

Modern production is globally distributed, increasing efficiency through specialization but creating interdependence and vulnerability to disruption. Globalization brings larger markets, lower-cost goods, and technology diffusion, alongside concerns about job displacement, wage pressure, and uneven distribution of gains.

J.9 Trade Policy Debates

Free Trade Arguments	Protection Arguments
Comparative advantage and mutual gains	Protecting specific jobs
Lower prices and greater variety	National security in strategic industries
Competition spurs innovation	Infant industry protection
Historical link to growth	Countering unfair trading practices

Consensus View

Economic consensus generally favors open trade paired with support for displaced workers, over broad trade protection as a first response.

Practice JInternational Economics Review

A country exports $400B and imports $370B. Find net exports and state whether this is a surplus or deficit.
Explain the difference between a tariff and a quota in terms of government revenue.
A currency appreciates. Explain the likely effect on the trade balance.
Summarize one argument for free trade and one argument for trade protection, and evaluate which seems stronger in a specific real-world case.

K.1 Common Greek and Latin Roots

Root	Origin	Meaning	Examples
econ-	Greek (oikos)	House, household	Economy, economist
-nomy	Greek (nomos)	Law, management	Economy, autonomy
micro-	Greek	Small	Microeconomics
macro-	Greek	Large	Macroeconomics
mono-	Greek	One	Monopoly, monopsony
olig-	Greek	Few	Oligopoly
-poly / -opsony	Greek	Seller / buyer	Monopoly / monopsony
cap-/capit-	Latin	Head, chief	Capital, per capita
fis-	Latin	Treasury	Fiscal, deficit
infla-	Latin	To swell	Inflation
marg-	Latin	Edge, border	Marginal
equil-	Latin	Equal balance	Equilibrium
extern-	Latin	Outside	Externality
elast-	Greek	Flexible	Elasticity

K.2 Common Prefixes and Suffixes

Affix	Meaning	Examples
de-	Down, reversal	Deflation, depreciation
dis-	Negation	Disinflation, distribution
ex-	Out of, former	Export, explicit cost
inter-	Between	International, interdependence
sub-	Under, below	Subsidy, substitution
-tion/-sion	The act of	Production, consumption
-ity	Quality or state	Productivity, elasticity

K.3 Common Abbreviations

Abbreviation	Full Term
GDP	Gross Domestic Product
CPI	Consumer Price Index
LFPR	Labor Force Participation Rate
AD / AS	Aggregate Demand / Aggregate Supply
SRAS / LRAS	Short-Run / Long-Run Aggregate Supply
MB / MC / MR	Marginal Benefit / Cost / Revenue
TR / TC	Total Revenue / Total Cost
ATC / AVC / AFC	Average Total / Variable / Fixed Cost
PPF	Production Possibilities Frontier
IMF / WTO	International Monetary Fund / World Trade Organization

K.4 How to Decode Economic Terms

Macroeconomics = macro (large) + economics. Monopoly = mono (one) + poly (seller). Oligopoly = oligo (few) + poly (seller). Monopsony = mono (one) + opsony (buyer). Per capita = per (for each) + capita (head). Fiscal policy traces to the Latin fiscus (treasury).

K.5 Frequently Confused Terms

Term 1	Term 2	Distinction
Scarcity	Shortage	Scarcity is fundamental; a shortage is a specific market condition
Change in demand	Change in quantity demanded	Shift of the curve vs. movement along it
Nominal value	Real value	Current prices vs. inflation-adjusted
Accounting profit	Economic profit	Explicit costs only vs. explicit plus implicit costs
Deficit	Debt	One year's shortfall vs. accumulated stock
Comparative advantage	Absolute advantage	Lower opportunity cost vs. more output per input
Elasticity	Slope	Percentage-based vs. raw-unit-based

K.6 Vocabulary Study Strategies

Learn definitions in context; draw the graph for every graph-related term; write your own real-world examples; test yourself specifically on confused-term distinctions; use a vocabulary log; and review cumulative vocabulary, since Chapter 2 terms reappear in Chapter 22.

Practice KVocabulary and Roots Review

Decode "monopsony" using its Greek roots.
Explain the difference between a deficit and debt using a household budget analogy.
Write one sentence each correctly distinguishing nominal and real wages.
Identify the root shared by "equilibrium" and explain its meaning.

Absolute advantage — The ability to produce more of a good per unit of input than another producer.
Adverse selection — A market failure from asymmetric information in which lower-quality goods or higher-risk individuals are more likely to be selected for transactions.
Aggregate demand (AD) — The total quantity of all goods and services all buyers want to purchase at a given price level.
Aggregate supply (AS) — The total quantity of goods and services producers are willing to supply at a given price level.
Allocative efficiency — Resources distributed to produce the combination of goods and services most valued by society.
Appreciation — An increase in the value of one currency relative to others.
Asymmetric information — A situation in which one party to a transaction has more or better information than the other.
Automatic stabilizer — A fiscal policy that automatically reduces the severity of economic fluctuations without new legislation.
Average cost — Total cost divided by quantity produced.
Balance of payments — A record of all economic transactions between a country and the rest of the world.
Barrier to entry — A factor that prevents or limits new firms from entering a market.
Budget deficit — Government spending exceeds tax revenue in a period.
Budget surplus — Tax revenue exceeds government spending in a period.
Business cycle — Recurring but irregular fluctuations in economic activity, typically measured by real GDP.
Capital — Produced means of production, including physical capital (machinery, buildings) and human capital (skills and knowledge).
Cartel — A group of firms that collude to act as a coordinated monopolist.
Ceteris paribus — Latin for "other things equal"; holding all variables constant except the one studied.
Collusion — An agreement among competing firms to fix prices, divide markets, or restrict output.
Command economy — An economic system in which a central authority decides what, how, and for whom to produce.
Comparative advantage — The ability to produce a good at a lower opportunity cost than another producer.
Compensating differential — A wage premium for jobs with undesirable characteristics.
Consumer price index (CPI) — A price index measuring the cost of a representative market basket relative to a base year.
Consumer surplus — The difference between what consumers are willing to pay and what they actually pay.
Consumption — Household spending on goods and services.
Contractionary fiscal policy — Spending cuts, tax increases, or both, designed to reduce aggregate demand.
Contractionary monetary policy — Central bank actions reducing the money supply and raising interest rates.
Crowding out — Reduced private investment caused by government borrowing that raises interest rates.
Cyclical unemployment — Unemployment caused by reduced aggregate demand during a recession.
Deadweight loss — A loss of total surplus caused by a market distortion resulting in output below the efficient level.
Deflation — A sustained decrease in the general price level.
Demand — The relationship between the price of a good and the quantity consumers are willing and able to buy.
Demand curve — A graph showing the relationship between price and quantity demanded.
Depreciation — A decrease in the value of one currency relative to others; also, the wearing out of capital over time.
Diminishing marginal utility — The tendency for additional satisfaction from one more unit to decline as consumption rises.
Discouraged worker — A person who has stopped searching for work, believing none is available.
Economies of scale — A decrease in average cost as output increases.
Efficiency — Using resources to maximize the value of total output at minimum cost.
Elasticity — A measure of the responsiveness of one variable to a change in another.
Equilibrium — A state in which opposing forces balance, with no tendency to change.
Equilibrium price/quantity — The price where quantity demanded equals quantity supplied, and the quantity bought and sold there.
Expenditure approach — Measuring GDP by adding consumption, investment, government purchases, and net exports.
Explicit cost — A cost requiring an actual monetary payment.
Export — A good or service produced domestically and sold abroad.
Externality — A cost or benefit of a transaction falling on people not involved in it.
Factors of production — Resources used to produce goods and services: labor, capital, land, entrepreneurship.
Fiat money — Money with no intrinsic value, accepted by law and convention.
Fiscal policy — Government spending and tax decisions to influence macroeconomic conditions.
Fixed cost — A cost that does not change with output.
Free rider — A person who benefits from a public good without paying for it.
Frictional unemployment — Short-term unemployment from job search or transition.
GDP per capita — Gross domestic product divided by population.
Gini coefficient — A statistical measure of income inequality from 0 (equality) to 1 (inequality).
Globalization — Increasing integration of national economies through trade, investment, migration, and technology.
Gross domestic product (GDP) — The market value of all final goods and services produced within a country's borders in a given period.
Human capital — Knowledge, skills, and abilities acquired through education, training, and experience.
Implicit cost — An opportunity cost not requiring a direct monetary payment.
Import — A good or service produced abroad and purchased domestically.
Incentive — A factor that makes a person more or less likely to take a particular action.
Income elasticity of demand — Percentage change in quantity demanded divided by percentage change in income.
Inflation — A sustained increase in the general price level over time.
Institution — A rule, norm, law, or organization shaping economic incentives and behavior.
Labor force — All employed workers plus unemployed workers actively searching for work.
Labor force participation rate — The percentage of the working-age population in the labor force.
Law of demand — As price rises, quantity demanded falls, other factors constant.
Law of supply — As price rises, quantity supplied rises, other factors constant.
Long run — A period long enough for all inputs to be adjusted.
Lorenz curve — A graph showing the cumulative distribution of income or wealth across the population.
Marginal benefit/cost/product/revenue/utility — The additional benefit, cost, output, revenue, or satisfaction from one more unit.
Market — Any arrangement through which buyers and sellers exchange goods, services, or resources.
Market economy — A system in which prices determined by supply and demand coordinate production and distribution.
Market failure — A situation in which markets fail to produce efficient or socially desirable outcomes.
Market power — The ability of a firm to influence the price of a product.
Minimum wage — A legal floor on the wage rate.
Mixed economy — A system combining elements of market, command, and traditional arrangements.
Model — A simplified representation of complex reality highlighting key relationships.
Monetary policy — Central bank decisions about the money supply and interest rates.
Money — Anything widely accepted as payment for goods, services, and debts.
Monopolistic competition — Many sellers, differentiated products, easy entry and exit.
Monopoly — A single seller, no close substitutes, high barriers to entry.
Moral hazard — A situation in which insurance or protection reduces the incentive to avoid the insured risk.
Natural monopoly — A monopoly arising because one firm can supply the market at lower average cost than multiple firms.
Natural rate of unemployment — The unemployment rate with only frictional and structural unemployment.
Negative externality — A cost imposed on people not involved in a transaction.
Net exports — Exports minus imports.
Nominal value — A value measured in current prices, unadjusted for inflation.
Normal good — A good for which demand increases as income increases.
Normative economics — Economic analysis involving value judgments about what should be.
Oligopoly — A few dominant firms, significant barriers to entry, interdependence among firms.
Open market operations — Central bank purchases or sales of government bonds to change the money supply.
Opportunity cost — The value of the next best alternative foregone when a choice is made.
Positive economics — Economic analysis describing and explaining phenomena without value judgments.
Price ceiling/floor — A legal maximum or minimum price for a good or service.
Price elasticity of demand/supply — Percentage change in quantity demanded/supplied divided by percentage change in price.
Price level — A measure of the average prices of goods and services in an economy.
Producer surplus — The difference between the price a seller receives and the minimum acceptable price.
Production possibilities frontier (PPF) — A graph showing combinations of two goods producible with all resources used efficiently.
Productivity — Output per unit of input.
Property rights — Rules defining who owns resources and what they may do with them.
Public debt — The accumulated stock of money owed by government from past deficits.
Public good — A good that is non-excludable and non-rival.
Quota — A legal limit on the quantity of a good that may be imported.
Real value — A value adjusted for inflation using a price index.
Recession — A period of declining real GDP, typically at least two consecutive quarters.
Redistribution — Transfer of income or wealth from some groups to others through taxes and transfers.
Rule of 70 — A variable growing at g percent per year doubles in approximately 70/g years.
Scarcity — The condition in which available resources are insufficient to satisfy all wants.
Short run — A period in which some inputs are fixed and cannot be changed.
Shortage / surplus — Quantity demanded exceeding (or falling below) quantity supplied at the prevailing price.
Signaling — An action taken to convey information, especially about quality or ability.
Specialization — Focusing production on goods or tasks in which one has a comparative advantage.
Structural unemployment — Long-term unemployment from a skills mismatch.
Subsidy — A government payment that reduces the market price of a good.
Substitute — A good usable in place of another; demand rises for one when the price of its substitute rises.
Sunk cost — A cost already paid that cannot be recovered, irrelevant to future decisions.
Supply — The relationship between price and quantity producers are willing and able to sell.
Tariff — A tax on imported goods.
Tax incidence — The distribution of a tax's burden between buyers and sellers.
Total cost/revenue — Fixed plus variable costs; price multiplied by quantity sold.
Trade — Voluntary exchange of goods, services, or resources.
Tradeoff — A situation in which more of one thing requires giving up some of another.
Transfer payment — A government payment not made in exchange for a good or service.
Underemployment — Working fewer hours than desired, or below one's skill level.
Unemployment rate — The percentage of the labor force that is unemployed.
Utility — The satisfaction or benefit a consumer derives from a good or service.
Variable cost — A cost that changes with the level of output.
Voluntary exchange — Trade occurring because both parties expect to benefit.
Wage — The price of labor; payment workers receive for their services.

This appendix provides selected answers for representative practice questions from each chapter. Full solutions appear in the companion solutions guide. Where a question involves explanation or analysis, a model response outline is provided.

Chapter 2 — Opportunity Cost

A student studies instead of working a $12/hour job for 6 hours

AnswerOpportunity cost = 6 × $12 = $72, assuming the job was the best available alternative.

Opportunity cost is the value of the next best alternative foregone — here, the wages not earned.

Chapter 5 — Comparative Advantage

Country A: 10 wheat or 5 cloth per worker. Country B: 6 wheat or 4 cloth per worker.

Wheat OCA: 5/10 = 0.5 cloth. B: 4/6 ≈ 0.67 cloth. A has the lower opportunity cost → A has comparative advantage in wheat.
Cloth OCA: 10/5 = 2 wheat. B: 6/4 = 1.5 wheat. B has the lower opportunity cost → B has comparative advantage in cloth.

Both countries gain from trade if A specializes in wheat and B specializes in cloth.

Chapter 9 — Elasticity

Apple price rises from $1.00 to $1.20; quantity falls from 100 to 85 pounds

% ΔQ(85 − 100) ÷ 100 × 100 = −15%
% ΔP(1.20 − 1.00) ÷ 1.00 × 100 = 20%
E_d−15% ÷ 20% = −0.75

|E_d| = 0.75 < 1 → demand is inelastic in this range.

Chapter 20 — GDP

C=$500B, I=$100B, G=$150B, Exports=$80B, Imports=$60B

AnswerGDP = 500 + 100 + 150 + (80 − 60) = $770 billion

Chapter 21 — Unemployment

Working-age population 200M; employed 130M; unemployed 10M; not in labor force 60M

Labor force130 + 10 = 140 million
Unemployment rate10 ÷ 140 × 100 = 7.1%
LFPR140 ÷ 200 × 100 = 70%

Chapter 22 — Inflation

CPI rises from 115 (Year 1) to 120 (Year 2)

Answer(120 − 115) ÷ 115 × 100 ≈ 4.3%

Chapter 28 — Growth

Real GDP per capita grows at 2 percent per year

AnswerDoubling time = 70 ÷ 2 = 35 years

Absolute advantage, Ch. 5, App. E

Adverse selection, Ch. 17, App. I

Aggregate demand, Ch. 23, App. D

Aggregate supply, Ch. 23, App. D

Allocative efficiency, Ch. 12, App. B, App. F

Antitrust policy, Ch. 13–14, App. F

Appreciation (currency), Ch. 29, App. J

Asymmetric information, Ch. 17, App. I

Automatic stabilizers, Ch. 27, App. I

Average cost, Ch. 11, App. C, App. E

Balance of payments, Ch. 29, App. J

Barriers to entry, Ch. 13–14, App. F

Behavioral economics, Ch. 17

Bounded rationality, Ch. 17

Budget deficit, Ch. 27, App. I

Business cycle, Ch. 24, App. D, App. H

Capital, Ch. 1, Ch. 28, App. B

Cartel, Ch. 14, App. F

Ceteris paribus, Ch. 6–7, App. B

Circular flow model, Ch. 1, App. D

Collusion, Ch. 14, App. F

Command economy, Ch. 4, App. B

Comparative advantage, Ch. 5, Ch. 29, App. E, App. J

Compensating differential, Ch. 15

Competition, perfect, Ch. 12, App. F

Complement goods, Ch. 6

Consumer price index (CPI), Ch. 22, App. H

Consumer surplus, Ch. 10, App. C

Contractionary policy, Ch. 26–27, App. I

Correlation vs. causation, App. A

Cost curves, Ch. 11, App. C

Crowding out, Ch. 27, App. I

Cyclical unemployment, Ch. 21, App. H

Deadweight loss, Ch. 13, App. C

Deflation, Ch. 22, App. H

Demand, Ch. 6, App. C

Demand curve, Ch. 6, App. C

Diminishing marginal utility, Ch. 10

Discouraged workers, Ch. 21, App. H

Economic growth, Ch. 2, Ch. 28, App. D

Economic profit, Ch. 11, App. E

Economic systems, Ch. 4, App. B

Economies of scale, Ch. 13, App. F

Efficiency, Ch. 2, Ch. 12, App. B, App. F

Elasticity, Ch. 9, App. C, App. E

Equilibrium, Ch. 8, App. C

Exchange rates, Ch. 29, App. J, App. E

Exports, Ch. 29, App. J

Externalities, Ch. 16, App. C

Factors of production, Ch. 1, App. B

Fiat money, Ch. 25, App. I

Fiscal policy, Ch. 27, App. I

Fixed costs, Ch. 11, App. C, App. E

Free rider problem, Ch. 16, App. B

Frictional unemployment, Ch. 21, App. H

Game theory, Ch. 14

GDP, Ch. 20, App. D, App. E, App. H

Gini coefficient, Ch. 19, App. H

Globalization, Ch. 29, App. J

Government failure, Ch. 18

Graphs, reading, App. A

Human capital, Ch. 15, Ch. 28, App. B

Imports, Ch. 29, App. J

Incentives, Ch. 3, App. B

Income elasticity, Ch. 9, App. E

Inferior good, Ch. 6, App. E

Inflation, Ch. 22, App. H, App. I

Institutions, Ch. 4, App. B

Interest rates, Ch. 25–26, App. I

Labor force, Ch. 21, App. D, App. H

Labor force participation rate, Ch. 21, App. E, App. H

Labor markets, Ch. 15, App. C

Law of demand, Ch. 6, App. C

Law of supply, Ch. 7, App. C

Long run, Ch. 3, Ch. 11–12, App. B

Lorenz curve, Ch. 19

Macroeconomics, Ch. 1, Part V, Part VI

Marginal analysis, Ch. 3, App. B, App. E

Marginal cost, Ch. 11, App. C, App. E

Marginal revenue, Ch. 12–13

Market economy, Ch. 4

Market equilibrium, Ch. 8, App. C

Market failure, Ch. 16–17, App. B

Market structure, Ch. 12–14, App. F

Minimum wage, Ch. 15

Models, Ch. 1, App. B

Monetary policy, Ch. 26, App. I

Money, Ch. 25, App. I

Monopolistic competition, Ch. 14, App. F

Monopoly, Ch. 13, App. F

Moral hazard, Ch. 17, App. I

Natural monopoly, Ch. 13, App. F

Natural rate of unemployment, Ch. 21, App. H

Negative externality, Ch. 16, App. C

Net exports, Ch. 20, App. D, App. E

Nominal vs. real values, Ch. 20, Ch. 22, App. E

Normal good, Ch. 6

Normative economics, Ch. 1, Ch. 30, App. B

Oligopoly, Ch. 14, App. F

Opportunity cost, Ch. 2, Ch. 5, App. B, App. E

Positive economics, Ch. 1, Ch. 30, App. B

Price ceiling, Ch. 8

Price elasticity of demand, Ch. 9, App. E

Price elasticity of supply, Ch. 9, App. E

Price floor, Ch. 8

Price level, Ch. 22–23, App. H

Producer surplus, App. C

Production possibilities frontier, Ch. 2, App. C

Productivity, Ch. 28, App. H

Property rights, Ch. 4, App. B

Public debt, Ch. 27, App. I

Public goods, Ch. 16, App. B

Quota, Ch. 29, App. J

Real vs. nominal, Ch. 20, Ch. 22, App. E

Recession, Ch. 24, App. H

Redistribution, Ch. 18–19

Rule of 70, Ch. 28, App. E

Scarcity, Ch. 2, App. B

Shortage, Ch. 8

Short run, Ch. 3, Ch. 11, App. B

Signaling, Ch. 17

Slope, App. A

Specialization, Ch. 5

Structural unemployment, Ch. 21, App. H

Subsidy, Ch. 7, Ch. 18

Substitute goods, Ch. 6

Supply, Ch. 7, App. C

Supply curve, Ch. 7, App. C

Surplus, Ch. 8

Sunk cost, Ch. 3, App. B

Tariff, Ch. 29, App. J

Tax incidence, Ch. 18

Technology, Ch. 7, Ch. 28

Total revenue, Ch. 9, App. E

Trade, Ch. 5, Ch. 29

Tradeoff, Ch. 3, App. B

Transfer payments, Ch. 18, Ch. 27, App. I

Underemployment, Ch. 21

Unemployment, Ch. 21, App. H

Unemployment rate, Ch. 21, App. E, App. H

Utility, Ch. 10

Variable costs, Ch. 11, App. C, App. E

Voluntary exchange, Ch. 5, App. B

Wage, Ch. 15, App. C

MGU Library Connection

Companion Solutions Guide — full worked answers for all chapter practice sets
Economics Vocabulary Guide and Formula Sheet — printable companion handouts
Chapter 1: What Economics Studies — the starting point this back matter supports
Chapter 30: Economics, Society, and Public Decision-Making — the capstone this back matter completes
MGU Dictionary entries: scarcity, opportunity cost, elasticity, GDP, inflation, monetary policy, comparative advantage

Using This Back Matter

A Lifelong Reference

This back matter is designed to outlast any single course. The formulas in Appendix E, the glossary in Appendix L, and the policy analysis steps in Appendix G remain useful any time you encounter an economic argument — in the news, in a workplace decision, or in your own household budgeting. Return to these appendices whenever a term, graph, or calculation needs a refresher.

Full Back Matter:Appendices &Reference