IB Economics Higher Level (HL) Practice Exam – All Questions

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A balance of payments surplus happens when exports exceed imports, signaling economic strengthIn terms of international trading, what does a balance of payments surplus indicate?A currency depreciation in the short term often worsens the current account deficit.What is a typical consequence of a depreciation in currency in the short term?A current account deficit occurs when imports exceed exports, and here's what that means.What is characterized by spending on imports exceeding revenue from exports?A customs union frees trade among member countries and adopts a common external tariff.What is a customs union?A fixed exchange rate keeps a currency pegged to another and steadies international trade.What is a fixed exchange rate?Abnormal profits arise when total revenue exceeds total costs, including opportunity costs.What type of profits are achieved when total revenue is greater than total cost, including opportunity costs?Abnormal profits occur when total revenue exceeds all costs, including opportunity costs.What is the term for a level of profit that exceeds the total costs of production, including opportunity costs?Absolute advantage explains how to maximize output with fewer inputs.Which economic theory emphasizes maximizing output with minimal input?Ad Valorem Tax: How a Percentage of the Selling Price Becomes Tax in IB Economics HLWhich type of tax is based on a percentage of the selling price rather than a flat amount?Aggregate supply in IB Economics HL explains the total output from firms and the government.What is the term for the total amount of domestic goods and services supplied by businesses and the government?Aggregate supply shows what an economy can produce at different price levels and why that capacity matters for growth and policy.What is the economic significance of the term "aggregate supply"?Allocative efficiency happens when price equals marginal cost.What type of efficiency is achieved when the price equals the marginal cost in a market structure?An economic good is defined by scarcity and a price.What term describes a good or service that is relatively scarce and has a price associated with it?As production rises, costs per unit fall: understanding economies of scaleIn which scenario can economies of scale typically occur?Capital is created through human investment, and that matters for growth.From an economic perspective, which of the following is a key characteristic of capital?Ceteris paribus means other things are equal, a simple way to isolate one variable in economic models.What term describes the principle that all other things are being held equal in economics?Cross price elasticity explained: how the demand for one good changes when the price of another movesWhat does cross price elasticity measure?Currency appreciation means a currency is becoming stronger relative to other currencies, shaping trade, prices, and investment.In the context of currency value, what does appreciation refer to?Deflationary gap explained: when output sits below full employment and unemployment rises in macroeconomicsWhat is the term for the situation in which the equilibrium level of output is less than the full employment level, resulting in unemployment?Depreciation in a floating exchange-rate system explained for IB Economics HL studentsWhat term describes a fall in the value of one currency compared to another in a floating exchange rate system?Diminishing marginal returns show why extra inputs stop boosting output.What occurs when a firm experiences diminishing marginal returns?Direct taxation in IB Economics HL: how income, wealth, and firm profits are taxed and how it contrasts with indirect taxesWhat type of taxation is imposed directly on people's income, wealth, or a firm's profit?Dumping explained: why selling below production costs abroad matters in economicsWhat term describes selling a product in another country at a price lower than its cost of production?Economic development: how rising living standards, better health, and education shape societiesWhich concept involves improvements in standards of living, reductions in poverty, and enhancements in health and education?Economic growth explained: how real output rises over time using real GDPWhat term is used to describe the growth of real output in an economy over time, typically measured in real GDP?Economies of scale make a single firm most efficient in a natural monopoly.In a natural monopoly, a single firm is typically more efficient due to:Elastic demand explained: when a price change leads to a bigger change in quantity demandedWhat type of demand occurs when a price change leads to a proportionately larger change in quantity demanded?Elastic supply explained: when price changes trigger bigger shifts in quantity supplied.What is referred to when a change in price leads to a proportionately larger change in quantity supplied?Exchange rates are the value of one currency expressed in terms of another.What does the term exchange rate refer to?Factor endowment explains why countries produce and trade the way they do.What term refers to the resources a country has available for producing goods and services?Fiscal policy explained: how government spending and taxation steer the economyWhich of the following describes a policy utilizing government spending and/or direct taxation to achieve economic objectives?Fixed costs don’t change with output, and that matters for managers and IB Economics students.What type of costs do not change with the level of output?Free trade explained: how removing barriers boosts efficiency and consumer choice.What economic policy aims to eliminate restrictions on international trade?Giffen goods explained: why essential items can rise in demand as prices climbWhat characterizes Giffen goods?High barriers to entry explain why new firms struggle to enter oligopolistic marketsWhat generally limits the entry of new firms in an oligopolistic market?How average revenue is calculated and what it reveals about pricing in economics HLHow is average revenue calculated?How buffer stock schemes stabilize commodity prices and support farmersWhen might the government implement a buffer stock scheme?How price elasticity shapes how consumers respond to price changes in economicsWhat indicator helps to determine how consumers will react to price changes?How technological progress expands an economy’s potential output and what potential growth means for the PPCWhich term represents the shift of the PPC due to technological advancements?How the Gini coefficient uses the Lorenz curve to measure income inequality.What measures income inequality by comparing the area between a Lorenz curve and the line of absolute equality?How tradable permits cap pollution and let firms trade emission rights for cost-effective reductions.What are permits to pollute that are issued by a governing body with a maximum pollution allowance called?In a perfectly competitive market, firms are price-takers.In a perfectly competitive market, firms are considered to be what kind of entities in terms of price?In a planned economy, the state decides what to produce and for whom.In which type of economy does the state determine how much to produce and for whom to produce?In the long run, all inputs can be varied to reshape production.Which period of production has all factors being variable?In the short run, some inputs stay fixed while others can adjust, shaping how firms produce.Which statement accurately describes short run production?Income elasticity explains how demand responds to income changes and why normal and inferior goods matterWhich elasticity measures how demand for a good changes in response to changes in income?Indirect costs don’t fit the main cost classifications in IB Economics HLWhich of the following is NOT a type of cost classification?Indirect taxes and selling prices: how VAT and sales tax shape what you pay.What type of tax is added to the selling price of a good or service?Inelastic demand explained: why some goods stay demanded even as prices riseWhich term best describes a situation where quantity demanded does not change significantly even when prices increase?Inflation explained: how rising prices erode money’s value and why it mattersWhich term describes a sustainable increase in the general or average level of prices along with a decrease in the value of money?Inflation explains why prices rise and purchasing power falls.What term is used to define increasing prices that erodes purchasing power in an economy?Investment builds capital stock and boosts future economic growth.The increase in capital stock is primarily associated with which of the following economic activities?Investment is the term for firms spending on capital to add to the economy's capital stock.What is the term for the addition of capital stock to the economy or expenditure by firms on capital?Joining a customs union boosts intra-union trade and sparks efficiency across member economiesWhat would a country experience if it entered a customs union?Labour is the human factor in production, and it shapes the economy in IB Economics HLWhich factor of production involves the mental and physical contributions of the workforce?Marginal cost explained: the extra cost of producing one more unitWhich of the following best describes marginal cost?Marginal cost: why the extra unit's cost matters for production decisionsWhat is the term for the additional cost of producing one more unit of output?Merit goods in IB Economics HL explain why education and healthcare matter for society.What do we call goods or services that are beneficial to society but are under-provided and under-consumed by the market?Monetary policy explained: how money supply and interest rates steer the economyWhat term is used for a policy that changes money supply or interest rates to reach economic goals?Monetary policy shapes inflation and demand through interest rate changesWhich type of policy is characterized by adjustments in interest rates to influence economic conditions?Monopolistic competition: many firms, differentiated products, and no barriers to entryIn which market structure are there many buyers and sellers producing differentiated products with no barriers to entry?Monopoly explained: when a single firm dominates the market in IB Economics HLWhich market structure is defined as having only one firm operating in the industry?Monopoly power: when a single firm dominates a unique product in IB Economics HLWhat concept is demonstrated when a firm is the only provider of a unique product with no close substitutes?Moving toward the production possibilities curve signals actual growth in an economyWhat does a movement from a point within a PPC to a point closer to the curve indicate?Normative economics explained: how value judgments shape what should happen in policyWhat type of economics focuses on what ought to be and includes value judgments?Normative economics explains what ought to happen, guided by value judgments and policy opinions.Normative economics is characterized by which of the following?Oligopoly explained: how a few big firms shape prices and strategyWhat term describes a market structure characterized by a few large firms dominating the market?Positive economics explained: what can be proven right or wrong by factsWhat does positive economics refer to?Positive externalities: why your neighbor's garden might boost property values and community well‑being.Positive externalities can be defined as:Potential output is the economy’s maximum sustainable production when all resources are fully employed.What term describes the possible production that would occur in an economy if all available factors were being fully employed?Poverty alleviation isn’t a typical positive externality—here’s how education, training, and environmental protection create spillovers.Which of the following is NOT typically associated with positive externalities?Price and Quantity Supplied: Why Higher Prices Prompt More Supply in IB Economics HLWhich of the following terms describes the relationship between the price of a good and the quantity supplied?Price discrimination: why different customers pay different prices for the same product.What kind of pricing strategy occurs when different prices are charged to different customers for the same product?Price elasticity of demand shapes how consumers spend and how prices are set.What economic principle can be affected by the price elasticity of demand?Price fixing is a cartel's hallmark, and it distorts prices in marketsWhat is a characteristic feature of a cartel?Price floors explained: what a minimum price means for marketsWhat term describes a price imposed by the authority and set above the market price?Prices and production in a free market are determined by demand and supplyIn a free market economy, what largely determines prices and production levels?Private ownership of the means of production defines a free market economy.What is the defining characteristic of a free market economy?Productive efficiency shows how firms produce at the lowest cost per unitWhich concept refers to achieving production at the lowest cost per unit of output?Real GDP means inflation-adjusted output, helping you compare growth across periods.In the context of GDP, what does 'real' signify?Real GDP: How inflation-adjusted output reveals true economic growthWhat is the term for the total money value of all final goods and services produced in an economy in one year, adjusted for inflation?Real wage unemployment: when policy or unions push wages above the market-clearing rate.What term refers to unemployment that occurs when wages are kept above the equilibrium wage rate due to government action or trade unions?Revaluation in fixed exchange rate systems means the currency gains value.In terms of exchange rates, what does revaluation imply?Rivalrous and excludable isn't a merit good traitWhich of the following is NOT a characteristic of merit goods?Scarcity in economics: understanding the clash between limited resources and unlimited wantsWhich of the following best summarizes the concept of scarcity?Seasonal unemployment explained: why some jobs disappear and reappear with the seasonsWhich type of unemployment specifically affects sectors that are dependent on seasonal demand for products or services?Seasonal unemployment: how seasonal demand shifts shape the labor market in IB Economics HL.What is the term for the unemployment that occurs when people are out of work due to seasonal variations in demand for labor?Structural unemployment happens when long-term shifts in demand and production leave workers behind.What type of unemployment results from long-term changes in demand and production methods, leading to a permanent fall in the need for a particular type of labor?Supply in economics shows the willingness and ability of producers to produce, shaping prices and market outcomes.What does supply reflect in an economic context?Sustaining high prices without agreements: a hallmark of non-collusive oligopoly behaviorWhich of the following is an example of a non-collusive oligopoly behavior?Tariffs are taxes on imports that protect domestic industries and shape trade.Which term refers to a tax imposed on imports to protect domestic industries?Tariffs protect domestic industries by making imports more expensive.What is the primary reason for implementing tariffs on imported goods?Terms of trade explained: how a country's export prices relate to its imports.Which term describes an index that measures a country's prices in relation to their average import prices?The buffer stock scheme stabilizes prices in markets: an IB Economics HL perspectiveWhich scheme involves government intervention to stabilize prices by managing surplus and shortages?The capital account measures the buying and selling of assets between countries, shaping a nation’s balance of payments.What does the capital account measure?The Gini Coefficient: How income inequality is measured and understood.What measure is commonly used to express income inequality within a population?The Marshall-Lerner Condition explains how depreciation can improve the current account when export and import elasticities sum to more than one.What is the effect called when the sum of the elasticity of demand for imports and exports affects the current account?The Phillips curve explains how higher employment can push up inflation.Which economic theory suggests that higher levels of employment can lead to higher inflation rates?Total costs are the sum of fixed and variable expenses, giving a complete view of a firm's costsWhat are the overall costs incurred by a firm known as?Total costs are the sum of fixed costs and variable costs, and they shape pricing and production decisions in IB Economics HL.What is typically represented as fixed costs plus variable costs?Total costs: How fixed and variable costs add up in IB Economics HLWhat is the sum of fixed costs and variable costs known as?Total revenue in IB Economics HL: what it is and why it mattersWhat is total revenue?Trade creation happens when production shifts to the lower-cost producer as markets open up.What does trade creation refer to?Trade diversion explained: production shifts from low-cost to high-cost producers under preferential trade agreementsWhat is trade diversion?Underemployment: when workers are over-qualified for their jobs.What is the term for unemployment that occurs when workers are over-qualified for their jobs?Understand how the Lorenz curve reveals economic efficiency in resource allocation.Which curve is utilized to show economic efficiency in resource allocation?Understanding absolute advantage in IB Economics HL: who can produce more with the same inputs?Which concept refers to a country producing more output than others with the same input?Understanding actual growth on the PPC when idle resources are put to workWhat is it called when previously unemployed factors are put into production, represented by a movement within a PPC?Understanding aggregate demand: total spending in an economy and its componentsWhich term represents the total spending in an economy, including consumption, investment, government expenditure, and net exports?Understanding Comparative Advantage: Why Countries Benefit from Specializing and TradingWhat describes a country's ability to produce a good at a lower opportunity cost than another country?Understanding consumption: how households spend on goods and services in IB Economics HLWhat is defined as spending by households on consumer goods and services?Understanding demand in economics: why willingness and ability to pay matterWhat does demand represent in economics?Understanding demand-deficient unemployment and how it differs from real wage, frictional, and seasonal unemployment in IB Economics HLWhat type of unemployment arises when there is insufficient demand in the economy and wages do not adjust to reflect this?Understanding devaluation in a fixed exchange rate system and its trade effectsWhat is a decrease in the value of a currency within a fixed exchange rate system known as?Understanding economic cost and why total production costs include opportunity costsWhich term describes the total cost of production, including opportunity cost?Understanding economic cost: why explicit costs plus implicit opportunity costs matter for decision makingWhat does the concept of economic cost include?Understanding economies of scale: why bigger production lowers long-run average costsWhat are economies of scale?Understanding free goods: why unlimited supply and no opportunity cost do not imply high monetary valueWhat is not considered a characteristic of free goods?Understanding frictional unemployment: why brief job transitions matter in the labor marketWhich type of unemployment is characterized by a temporary unemployment experienced by individuals between jobs?Understanding frictional unemployment: why people between jobs reflect a dynamic labor marketWhich type of unemployment exists when individuals have left their job and are actively looking for a new one?Understanding full employment in IB Economics HL: when jobs meet workersWhat term describes the situation when the number of jobs available in an economy is equal to or greater than the number of people actively seeking work?Understanding full employment in macroeconomics: when labor demand outpaces supply and unemployment fallsWhat is the economic condition when demand for labor exceeds supply, leading to a decrease in unemployment?Understanding how a customs union shapes trade with uniform tariffs on non-membersWhich of the following describes the trade benefits of a customs union?Understanding how a flat rate tax works: a fixed amount added to every unit sold.What is an indirect tax where a specific amount is added to the selling price of each unit?Understanding how ad valorem taxes work: percentage-based pricing and its effects on price, revenue, and consumer choicesWhat do we call an indirect tax where a percentage is added to the selling price of each unit?Understanding inelastic demand and why price changes barely move the quantity demanded.What type of demand is characterized by a proportionately smaller change in quantity demanded following a price change?Understanding inelastic supply: why price changes barely move quantity suppliedWhich term describes when a change in price results in a proportionately smaller change in quantity supplied?Understanding land in economics: natural resources are a key production factorThe factor of production referred to as 'land' primarily consists of what?Understanding marginal revenue and how it shapes price and output decisionsWhat is the term for the extra revenue gained from selling one more unit of a good or service?Understanding natural monopolies: when a single firm can meet an entire market's demand more efficientlyWhat situation occurs when there are sufficient economies of scale to support only one firm in the market?Understanding negative externalities: how third parties bear costs from production and consumption.What are the adverse effects suffered by a third party due to the production or consumption of goods or services?Understanding non-collusive oligopoly and how firms compete beyond priceWhat is the term for an oligopoly where firms do not make agreements and engage in non-price competition?Understanding normal profits: revenue covers total costs including opportunity costsWhich term describes the amount of revenue needed to cover the total costs of production, including opportunity costs?Understanding opportunity cost: the next best alternative you give up when making a decisionWhat is defined as the next best alternative foregone when making an economic decision?Understanding Perfect Competition in EconomicsWhat term describes a market structure characterized by a large number of small firms, homogeneous goods, and no barriers to entry?Understanding price elasticity of demand and why price changes matter for consumers and firmsWhat is the term for the measure of responsiveness of the quantity demanded when there is a change in price?Understanding public goods: non-rivalrous and non-excludable explained.Which of the following characteristics best describes public goods?Understanding quotas: how import limits shape trade and domestic prices.What is an import barrier that sets limits on the amount of a product that can be imported?Understanding Scarcity: The Core Economic Principle Behind Resource AllocationWhat is the economic principle that describes the limited availability of resources relative to unlimited demands?Understanding Shut Down Price and its Role in Firm DecisionsWhat is the price at which average revenue equals average variable cost, below which a firm will shut down in the short run?Understanding sustainable development in IB Economics HL: balancing today's needs with tomorrow's opportunitiesWhat term describes development that meets the needs of the present without compromising future generations' ability to meet their own needs?Understanding the break-even price: where average revenue equals average total cost and firms stay viableWhich price is defined as the point where average revenue equals average total cost, indicating that the firm will shut down in the long run if not met?Understanding the Concept of Market Failure in EconomicsWhat term refers to the failure of markets to achieve a socially efficient level of output?Understanding the cost of production per unit: why average cost matters for pricing and business decisionsHow is the cost of production per unit defined?Understanding the current account in IB Economics HL: what’s included and why it matters.What is included in the current account?Understanding the deflationary gap when the economy can't sustain full employmentWhich economic term signifies when the economy cannot sustain full employment?Understanding the Dynamics of Collusive OligopolyIn which type of oligopoly do firms collaborate to set prices or output levels?Understanding the Dynamics of Free Trade and Its Impact on Global MarketsWhat type of trade involves no barriers to imports or exports?Understanding the Holistic Nature of Sustainable DevelopmentWhat is the definition of sustainable development?Understanding the Inflationary Gap in EconomicsWhich term describes the situation where the equilibrium level of output is greater than the full employment level of output?Understanding the inflationary gap: when demand outstrips supply and prices riseIn economic terms, which gap reflects a demand that exceeds supply leading to inflation?Understanding the J-Curve: why currency depreciation can initially worsen before improving a nation's trade balanceAn unfavorable shift in trade balance can initially occur due to currency depreciation because of what effect?Understanding the Laffer curve and its impact on tax revenueWhat describes the relationship between income tax rates and total tax revenue?Understanding the Law of Demand: lower prices lead to higher quantities demandedWhich principle states that as the price of a good falls, the quantity demanded increases?Understanding the Lorenz curve and how it shows income distribution in IB Economics HLWhich curve illustrates the distribution of income among different segments of the population?Understanding the Marshall-Lerner Condition: When currency depreciation can improve the current account.What economic principle states that currency depreciation or devaluation will improve the current account balance if certain conditions are met?Understanding the Multiplier Effect in EconomicsWhich term refers to the ratio of change in national income to the original change in injections into the income flow?Understanding the Phillips curve: the trade-off between unemployment and inflationWhat concept illustrates the inverse relationship between the rate of unemployment and the rate of inflation, suggesting a trade-off?Understanding the Production Possibility Curve: the economy's maximum output combinations and the trade-offs behind every choiceWhich term represents the maximum combination of outputs that can be produced by an economy in a given time period?Understanding the Profit Maximizing Level of OutputWhat is defined as the level of output where marginal revenue equals marginal cost?Understanding the Shift to a Market-Oriented EconomyWhat term describes an economy moving towards a more market-oriented system?Understanding the short run in IB Economics HL when one input stays fixedWhat period is characterized by at least one factor of production being fixed?Understanding the Significance of a Current Account Surplus in Economic HealthWhen analyzing the current account, what would signify a healthily balanced economy?Understanding unemployment: who is counted as unemployed in IB Economics HLWhat is the definition of unemployment?Understanding utility in economics: how satisfaction guides consumer choices.Which of the following best defines the term utility in economics?Understanding Variable Costs: Why They Change with Output in IB Economics HLWhat do we call costs that vary with the level of output?Understanding what defines a common market and how it boosts economic cooperationWhat defines a common market?Understanding what the balance of payments records: the value of trade between residents and the rest of the worldWhat does the balance of payments record?Understanding which cost changes with production levels and why variable costs matterWhich of the following describes a cost that changes with production levels?Utility explains how the satisfaction from consuming goods shapes our choices.What concept refers to the satisfaction or pleasure derived from the consumption of a good or service?What a current account surplus tells us about exports vs importsWhat does a current account surplus indicate?What actual output reveals about how much an economy actually produces in a given period.Which of the following represents the actual production of goods and services in an economy over a specific time period?What are diseconomies of scale and why do costs rise when a firm grows?What are diseconomies of scale?What capital means in economics and how human-made tools drive growthIn economics, what is capital defined as?What characterizes a floating exchange rate and why market demand and supply set its valueWhat characterizes a floating exchange rate?What does a government subsidy per unit of output do for firms and prices?What term refers to an amount paid by the government to a firm per unit of output?What entrepreneurship really means as a factor of production: risk-taking and organizational skills that drive growth.What does entrepreneurship represent in terms of factors of production?What is a cartel and how do firms coordinate to set prices?What is the name given to a group of firms that work together to control the market price of goods?What is the opposite of sustainable development and why it matters in economicsIn economic terms, what is the opposite of sustainable development?What makes a good truly free? Understanding free goods in IB Economics HLWhich of the following describes free goods?What makes a market contestable—and why potential entrants keep incumbents honestWhat is a market called that is perceived as an oligopoly or monopoly, but can act competitively due to potential entrants?What potential growth means for the PPC and why it shifts outward.Which process involves an increase in the quantity and/or quality of factors of production, shown by an outward shift of the PPC?What Price Elasticity of Supply Tells Us About How Firms React to Price ChangesWhat is the term for the measure of responsiveness of quantity supplied to changes in price?What scenario best shows actual output in an economy?Which of the following scenarios best illustrates actual output in an economy?What sets labor apart from other factors of production in IB Economics HL.What primarily differentiates labor from other factors of production?What Sustainable Development Means for Economic PracticesWhat does sustainable development emphasize in economic practice?When a currency officially gains value under a fixed exchange rate, that is called revaluationWhat is the term for an increase in the value of a currency in a fixed exchange rate system?When a price ceiling is imposed, why does a shortage happen?When a maximum price is imposed, what is the expected outcome on the market?When incomes rise, demand for normal goods increases.What type of goods see an increase in demand as consumer income rises?When marginal cost equals average revenue, allocative efficiency shows how prices and society benefit.What is the level of output where marginal cost equals average revenue called?When prices rise, the quantity supplied tends to increase.According to the law of supply, what happens when the price of a good rises?Why a country spending more on foreign goods than it earns from exports signals a current account deficitWhich of the following refers to a situation where a nation is spending more on foreign goods than it is earning from its own exports?Why a fixed exchange rate fits a highly interventionist economy in IB Economics HL.Which type of exchange rate would you expect to see in a highly interventionist economy?Why a price drop typically boosts quantity demanded and what IB HL students should know about the law of demand.What effect does a decrease in the price of a good typically have on quantity demanded, according to economic principles?Why a price set below market equilibrium is called a maximum price—and how it affects consumers and shortagesWhat is the term for a price set below the market equilibrium by the authorities?Why abnormal profits in the short run happen and what they mean for firmsWhich of the following best characterizes abnormal profits in the short run for a firm?Why demerit goods are over-consumed and harm societyWhat type of goods are considered harmful and are typically over-provided and over-consumed in the market?Why government deficits can push up interest rates and crowd out private investment.Which situation occurs when the government spends more than it receives, requiring borrowing and potentially leading to higher interest rates?Why higher prices can make luxury items more desirable: understanding Veblen goods.What are Veblen goods known for?Why inferior goods fall in demand as income rises: a clear IB Economics HL guideIn economics, what characterizes inferior goods?Why negative externalities cause market failure in IB Economics HLWhat is the economic implication of negative externalities in the market?Why normal goods rise with income, and what isn't a characteristicWhich of the following is NOT a characteristic of normal goods?Why public goods aren’t produced by free markets: understanding non-rivalry and non-diminishabilityWhich type of goods and services would not be produced by the market due to their characteristics of non-rivalry and non-diminishability?Why rising national income spurs investment: the accelerator in IB Economics HLWhat describes the relationship between the level of induced investment and the rate of change of national income?Why the circular flow of income best captures how money moves through an economy.Which model simplifies the flow of money in an economy?Why the current account matters for a nation's economic health.Why is the current account important?Why the J-curve makes the current account worsen before it improvesThe J-curve suggests what initial effect of a currency's depreciation on the current account?Why the law of diminishing marginal returns matters for production decisionsWhat is the law of diminishing marginal returns?Why the output per unit of a variable input eventually falls: the law of diminishing average returns explained.What does the law of diminishing average returns indicate?Why Veblen goods attract buyers as prices rise: the role of status signaling in consumer behaviorWhat role do Veblen goods play in consumer behavior?

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