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The price mechanism uses changes in [ ] to allocate scarce resources without a central planner.

","back":"

The price mechanism uses changes in relative prices to allocate scarce resources without a central planner.

","mcqOptions":[{"text":"relative prices","correct":true,"explanation":"Relative prices compare the prices of different goods, showing changes in scarcity and demand. These signals guide resources between uses without requiring decisions from a central planner."},{"text":"absolute prices","correct":false,"explanation":"Absolute prices show the money price of individual goods but do not necessarily indicate their relative scarcity. The price mechanism uses relative prices to compare alternative uses of resources."},{"text":"real incomes","correct":false,"explanation":"Real incomes measure purchasing power rather than signalling which goods have become relatively more or less scarce. The correct term is relative prices, which guide resource allocation between markets."},{"text":"production costs","correct":false,"explanation":"Production costs influence firms’ decisions but are not the changing signals described here. Relative prices guide resources towards goods that become more valuable compared with other goods."}]},{"id":"84afd3c4-b935-4b36-b77b-1b666b17ff2a","cardType":"cloze","points":null,"front":"

The price mechanism uses changes in relative prices to allocate scarce resources without a [ ].

","back":"

The price mechanism uses changes in relative prices to allocate scarce resources without a central planner.

","mcqOptions":[{"text":"central planner","correct":true,"explanation":"The price mechanism coordinates decisions through changing relative prices, so resources can be allocated by market participants without a central planner directing production and consumption."},{"text":"government regulator","correct":false,"explanation":"A government regulator may influence markets, but removing regulation is not the defining contrast in this statement. The price mechanism allocates resources without a central planner."},{"text":"private monopoly","correct":false,"explanation":"A private monopoly is a market structure, not the person or institution being contrasted with the price mechanism. Prices allocate resources without a central planner making the decisions."},{"text":"financial intermediary","correct":false,"explanation":"A financial intermediary transfers funds between savers and borrowers and is unrelated to central resource allocation. The missing term is central planner, which the price mechanism makes unnecessary."}]},{"id":"aa1e33de-6417-450b-9fc1-36496a6e8f28","cardType":"basic","points":3,"front":"

What are the three functions of prices?

","back":"

Rationing
Incentive
Signalling

","mcqOptions":[{"text":"

Rationing
Incentive
Signalling

","correct":true,"explanation":"Prices ration goods among competing buyers, incentivise producers and consumers to change behaviour, and signal where demand, profitability and resources are increasing or decreasing."},{"text":"

Allocation
Redistribution
Stabilisation

","correct":false,"explanation":"These are broad economic roles, but they are not the three standard functions of prices in the price mechanism. The correct functions are rationing, incentive and signalling."},{"text":"

Consumption
Production
Competition

","correct":false,"explanation":"Consumption and production are activities affected by prices, while competition is a market process. The three functions themselves are rationing, incentive and signalling."},{"text":"

Taxation
Subsidisation
Regulation

","correct":false,"explanation":"Taxation, subsidisation and regulation are government policy tools rather than functions performed by market prices. Prices ration scarce goods, provide incentives and signal changing conditions."}]},{"id":"4483cf14-e4f7-4ad7-9bc0-c9769b160c81","cardType":"basic","points":2,"front":"

How does a higher price ration a scarce good?

","back":"

A higher price allocates it to those willing and able to pay.

","mcqOptions":[{"text":"

A higher price allocates it to those willing and able to pay.

","correct":true,"explanation":"When a scarce good becomes more expensive, consumers who are both willing and able to pay obtain it, while other potential buyers are rationed out of the market."},{"text":"A higher price allocates it to those most in need.","correct":false,"explanation":"Prices do not directly measure need, so a person in greater need may be unable to buy the good. Rationing occurs through willingness and ability to pay."},{"text":"A higher price allocates it to those first to demand.","correct":false,"explanation":"Being first to demand a good does not guarantee access when price is the rationing method. The good goes to consumers willing and able to pay the higher price."},{"text":"A higher price allocates it to those with the highest income.","correct":false,"explanation":"Income alone does not determine whether someone buys the good, since willingness also matters. The price mechanism allocates it to those willing and able to pay."}]},{"id":"8376fc7d-815d-4338-be58-8ca68562c684","cardType":"basic","points":2,"front":"

How does a higher price incentivise producers?

","back":"

Higher prices and profits encourage producers to increase supply.

","mcqOptions":[{"text":"

Higher prices and profits encourage producers to increase supply.

","correct":true,"explanation":"Higher prices can increase revenue and profit, giving producers an incentive to expand output. This raises quantity supplied as firms respond to the improved reward."},{"text":"Higher prices and profits encourage producers to reduce supply.","correct":false,"explanation":"Reducing supply would usually forgo the extra profit available from a higher price. The incentive function means producers are encouraged to increase supply instead."},{"text":"Higher prices and profits encourage producers to increase demand.","correct":false,"explanation":"Producers control output rather than consumers’ demand. Higher prices and profits encourage firms to increase supply, while demand is a decision made by consumers."},{"text":"Higher prices and profits encourage producers to keep supply unchanged.","correct":false,"explanation":"An unchanged supply response ignores the incentive created by higher profitability. Firms are encouraged to increase supply when the potential return from production rises."}]},{"id":"706ca850-6da5-4270-a386-c5796b23816a","cardType":"basic","points":2,"front":"

How does a higher price incentivise consumers?

","back":"

A higher price encourages consumers to economise.

","mcqOptions":[{"text":"

A higher price encourages consumers to economise.

","correct":true,"explanation":"A higher price makes the good more costly, so consumers have an incentive to reduce waste and use less of it. This behavioural response is the incentive function."},{"text":"A higher price encourages consumers to consume more.","correct":false,"explanation":"A higher price normally makes consumption more expensive and reduces the quantity demanded. Consumers are encouraged to economise rather than consume more."},{"text":"A higher price encourages consumers to save less.","correct":false,"explanation":"The direct response to a higher good price is to reduce wasteful use of that good, not necessarily to change saving. The relevant term is economise."},{"text":"A higher price encourages consumers to buy substitutes less often.","correct":false,"explanation":"Consumers generally have more incentive to seek substitutes when a good becomes expensive. The price mechanism encourages them to economise on the higher-priced good."}]},{"id":"0a6868ac-7874-4e35-836a-75380c17df44","cardType":"basic","points":2,"front":"

How do changing prices signal where resources should flow?

","back":"

Prices direct resources into rising markets and out of falling markets.

","mcqOptions":[{"text":"

Prices direct resources into rising markets and out of falling markets.

","correct":true,"explanation":"Rising prices and profits attract firms and resources, while falling prices reduce the reward from production and encourage resources to leave. This is the signalling function."},{"text":"Prices direct resources into falling markets and out of rising markets.","correct":false,"explanation":"This reverses the incentive created by profitability: rising markets attract resources, whereas falling markets lose them. The correct direction is into rising and out of falling markets."},{"text":"Prices direct resources equally across rising and falling markets.","correct":false,"explanation":"Equal resource flows would ignore the information contained in changing prices. Resources move towards rising markets and away from falling markets because profitability differs."},{"text":"Prices direct resources into government-selected markets and out of private markets.","correct":false,"explanation":"The price mechanism responds to market signals rather than government selection. Resources flow into rising markets and out of falling markets as prices change."}]},{"id":"0879ad74-b32f-4f7e-99d5-07082769037d","cardType":"basic","points":2,"front":"

What role does profit play in allocating resources?

","back":"

Firms move resources towards goods with higher prices and profits.

","mcqOptions":[{"text":"

Firms move resources towards goods with higher prices and profits.

","correct":true,"explanation":"Higher prices can create higher profits, signalling that consumers value additional output. Firms therefore redirect labour, capital and other resources towards those more profitable goods."},{"text":"Firms move resources towards goods with lower prices and profits.","correct":false,"explanation":"Lower prices and profits reduce the reward for producing a good, so they normally attract fewer resources. Higher prices and profits provide the stronger allocation signal."},{"text":"Firms move resources towards goods with higher costs and losses.","correct":false,"explanation":"Persistent losses make production less attractive and can cause resources to leave the market. Firms are drawn towards goods offering higher prices and profits."},{"text":"Firms move resources towards goods with lower demand and profits.","correct":false,"explanation":"Lower demand generally reduces prices and profitability, weakening the incentive to allocate resources there. Firms respond to higher prices and profits instead."}]},{"id":"bf7fd7e7-6572-4856-afb7-1da61146d2c5","cardType":"basic","points":3,"front":"

How does a rise in demand lead the price mechanism to clear a market?

","back":"

Demand rises, creating a shortage and higher price.
Higher profit incentivises increased supply.
Resources enter until quantity demanded equals quantity supplied.

","mcqOptions":[{"text":"

Demand rises, creating a shortage and higher price.
Higher profit incentivises increased supply.
Resources enter until quantity demanded equals quantity supplied.

","correct":true,"explanation":"Increased demand initially creates excess demand, pushing up price. Higher profitability attracts supply, and resources continue entering until the market reaches equilibrium where quantity demanded equals quantity supplied."},{"text":"

Demand rises, creating a surplus and lower price.
Lower profit incentivises reduced supply.
Resources leave until quantity demanded equals quantity supplied.

","correct":false,"explanation":"A rise in demand creates a shortage, not a surplus, and tends to raise price and profit. These signals encourage increased supply until quantity demanded equals quantity supplied."},{"text":"

Demand rises, creating a shortage and lower price.
Higher profit incentivises increased supply.
Resources enter until quantity supplied exceeds quantity demanded.

","correct":false,"explanation":"The initial shortage raises price rather than lowering it, and clearing the market requires equality, not excess supply. Equilibrium occurs when quantity demanded equals quantity supplied."},{"text":"

Demand rises, creating a shortage and higher price.
Higher profit incentivises reduced supply.
Resources enter until quantity demanded exceeds quantity supplied.

","correct":false,"explanation":"Higher profit encourages producers to increase supply, not reduce it. Market clearing also requires quantity demanded to equal quantity supplied, rather than leaving a shortage."}]},{"id":"062732ab-063d-455e-833b-d7675eb0e280","cardType":"basic","points":1,"front":"

At $\\pounds 10$, chip demand is $120$ million and supply is $100$ million. What is the shortage?

","back":"

The shortage is $20$ million units.

","mcqOptions":[{"text":"

The shortage is $20$ million units.

","correct":true,"explanation":"A shortage is calculated as quantity demanded minus quantity supplied: $120$ million minus $100$ million equals $20$ million units."},{"text":"The shortage is $220$ million units.","correct":false,"explanation":"Adding demand and supply gives total quantities rather than the excess demand. The shortage is the difference, $120$ million minus $100$ million, which is $20$ million units."},{"text":"The shortage is $80$ million units.","correct":false,"explanation":"Subtracting supply from the demand figure incorrectly reverses the quantities. The shortage is $120$ million minus $100$ million, so it equals $20$ million units."},{"text":"The shortage is $100$ million units.","correct":false,"explanation":"The supply figure is not itself the shortage. Shortage measures the gap between demand and supply, which is $120$ million minus $100$ million, or $20$ million units."}]},{"id":"35a94938-6bb4-4f23-9968-928cb31ee55a","cardType":"cloze","points":null,"front":"

In the computer-chip example, the new equilibrium price is $\\text{[...]}$ and equilibrium quantity is $105$ million units.

","back":"

In the computer-chip example, the new equilibrium price is $\\boxed{\\pounds 15}$ and equilibrium quantity is $105$ million units.

","mcqOptions":[{"text":"$$\\pounds 15$","correct":true,"explanation":"The new equilibrium price is $\\pounds 15$, where the adjusted quantity demanded and quantity supplied are equal at $105$ million units."},{"text":"$$\\pounds 10$","correct":false,"explanation":"$$\\pounds 10$ is the original price before the demand change and does not clear the market after demand rises. The new equilibrium price is $\\pounds 15$."},{"text":"$$\\pounds 12.50$","correct":false,"explanation":"This is a plausible midpoint between the old and new prices, but equilibrium is determined by equal quantities rather than by averaging prices. The example gives $\\pounds 15$."},{"text":"$$\\pounds 20$","correct":false,"explanation":"A price of $\\pounds 20$ overstates the adjustment needed to remove the shortage in this example. The market reaches equilibrium at $\\pounds 15$."}]},{"id":"b2abcc89-161e-40ce-8dc0-e8945043d72a","cardType":"cloze","points":null,"front":"

In the computer-chip example, the new equilibrium price is $\\pounds 15$ and equilibrium quantity is [ ].

","back":"

In the computer-chip example, the new equilibrium price is $\\pounds 15$ and equilibrium quantity is $105$ million units.

","mcqOptions":[{"text":"$$105$ million units","correct":true,"explanation":"At the new equilibrium price of $\\pounds 15$, the market clears when quantity demanded equals quantity supplied. In the computer-chip example, that quantity is $105$ million units."},{"text":"$$100$ million units","correct":false,"explanation":"This is the original quantity supplied at $\\pounds 10$, not the new equilibrium quantity. At $\\pounds 15$, the adjusted market equilibrium is $105$ million units."},{"text":"$$120$ million units","correct":false,"explanation":"This is the original quantity demanded at $\\pounds 10$, before the price rises. The higher equilibrium price reduces demand and results in $105$ million units."},{"text":"$$115$ million units","correct":false,"explanation":"This value incorrectly assumes that the quantity change matches the price increase numerically. The stated equilibrium quantity, where demand equals supply, is $105$ million units."}]},{"id":"baa0f058-67ef-45b5-9301-e53fc63ccfc2","cardType":"basic","points":3,"front":"

How does the chip price rise from $\\pounds 10$ to $\\pounds 15$ perform all three price functions?

","back":"

Rationing: quantity demanded falls to $105$ million.
Incentive: quantity supplied rises to $105$ million.
Signalling: profitability attracts producers and resources.

","mcqOptions":[{"text":"

Rationing: quantity demanded falls to $105$ million.
Incentive: quantity supplied rises to $105$ million.
Signalling: profitability attracts producers and resources.

","correct":true,"explanation":"The higher price rations the good by reducing quantity demanded, incentivises firms to supply more, and signals increased profitability that attracts producers and resources into chip production."},{"text":"

Rationing: quantity demanded rises to $105$ million.
Incentive: quantity supplied falls to $105$ million.
Signalling: profitability attracts producers and resources.

","correct":false,"explanation":"A higher price normally reduces quantity demanded and encourages producers to supply more. The signalling point is correct, but the rationing and incentive effects are reversed."},{"text":"

Rationing: quantity demanded falls to $100$ million.
Incentive: quantity supplied rises to $120$ million.
Signalling: profitability attracts producers and resources.

","correct":false,"explanation":"These figures confuse the original supply and demand quantities with the new equilibrium. At $\\pounds 15$, both adjusted quantities are $105$ million."},{"text":"

Rationing: quantity demanded rises to $120$ million.
Incentive: quantity supplied remains at $100$ million.
Signalling: profitability discourages producers and resources.

","correct":false,"explanation":"The higher price reduces demand, raises supply and increases the attraction of production. The correct outcome is $105$ million for both quantities, with profitability attracting resources."}]},{"id":"42a5f19e-d3ac-4fdd-ac1f-fcf1454bd6f0","cardType":"basic","points":2,"front":"

Why may the price mechanism be efficient but inequitable?

","back":"

It allocates goods by ability to pay, potentially excluding poorer consumers.

","mcqOptions":[{"text":"

It allocates goods by ability to pay, potentially excluding poorer consumers.

","correct":true,"explanation":"Market allocation can be efficient because prices direct goods to buyers and resources to valued uses, but it may be inequitable because consumers without sufficient income are excluded."},{"text":"It allocates goods by need alone, potentially excluding richer consumers.","correct":false,"explanation":"Prices do not allocate solely according to need; ability and willingness to pay matter. This can exclude poorer consumers even when their need for the good is substantial."},{"text":"It allocates goods by government priority, potentially excluding private firms.","correct":false,"explanation":"Government priority describes administrative allocation rather than the normal price mechanism. Market prices allocate goods according to ability to pay, which may disadvantage poorer consumers."},{"text":"It allocates goods by equal entitlement, potentially excluding poorer consumers.","correct":false,"explanation":"Equal entitlement would imply that consumers receive equal access regardless of income, which is not how prices ration scarce goods. Allocation by ability to pay can exclude poorer consumers."}]},{"id":"ed2f05e0-b8c0-4ee4-8682-7e6ec7b6edae","cardType":"basic","points":2,"front":"

Why can strong externalities limit the price mechanism?

","back":"

Prices may not reflect the full social costs and benefits.

","mcqOptions":[{"text":"

Prices may not reflect the full social costs and benefits.

","correct":true,"explanation":"Externalities affect third parties outside the transaction. Because market prices may omit these external costs or benefits, private decisions can produce an inefficient allocation of resources."},{"text":"Prices always reflect the full private costs and benefits.","correct":false,"explanation":"Private costs and benefits are generally included in market decisions, but externalities concern effects on third parties. The problem is that prices may omit full social costs and benefits."},{"text":"Prices may not reflect the full financial revenues and profits.","correct":false,"explanation":"Externalities are not primarily about whether firms record revenue or profit accurately. They arise when prices fail to include the full social costs and benefits."},{"text":"Prices must reflect the full social costs and benefits.","correct":false,"explanation":"Strong externalities are precisely a reason prices may fail to reflect all social effects. This omission can make the market outcome inefficient, even when private prices are accurate."}]},{"id":"e4670862-9782-451b-976a-b271c4ecd4ff","cardType":"basic","points":2,"front":"

How can pricing a previously free resource reduce overuse?

","back":"

The charge creates a financial incentive to reduce wasteful overuse.

","mcqOptions":[{"text":"

The charge creates a financial incentive to reduce wasteful overuse.

","correct":true,"explanation":"Charging for a previously free resource gives users a financial reason to reduce unnecessary consumption. This can lower wasteful overuse and encourage the resource to be conserved."},{"text":"The charge creates a financial incentive to increase wasteful overuse.","correct":false,"explanation":"A charge makes each additional unit costly, so it discourages unnecessary use rather than rewarding it. The correct effect is an incentive to reduce wasteful overuse."},{"text":"The charge creates a legal requirement to eliminate all use.","correct":false,"explanation":"Pricing changes incentives but does not normally ban every use of the resource. It reduces wasteful overuse while allowing users to continue when the benefit justifies the charge."},{"text":"The charge creates a financial incentive to ignore resource scarcity.","correct":false,"explanation":"A price makes scarcity more visible by attaching a cost to use. It encourages users to economise and reduce wasteful overuse, rather than ignore scarcity."}]},{"id":"b519c248-f9d7-4887-8f01-2122e91028fa","cardType":"cloze","points":null,"front":"

A flat charge may be [ ] because it hits poorer users hardest, while setting a price for clean air or road space creates a valuation problem.

","back":"

A flat charge may be regressive because it hits poorer users hardest, while setting a price for clean air or road space creates a valuation problem.

","mcqOptions":[{"text":"regressive","correct":true,"explanation":"A flat charge takes the same absolute amount from everyone, so it consumes a larger proportion of a poorer user’s income and therefore has a regressive distributional effect."},{"text":"progressive","correct":false,"explanation":"A progressive charge takes a larger proportion from higher-income users, whereas a flat charge takes the same amount from everyone. The correct term is regressive because poorer users face the greatest proportional burden."},{"text":"proportional","correct":false,"explanation":"A proportional charge rises in line with income, keeping its income share constant. A flat charge does not adjust with income, so it is regressive because poorer users lose a larger income proportion."},{"text":"discretionary","correct":false,"explanation":"Discretionary describes spending that can be chosen or postponed, not how a charge affects different income groups. The correct term is regressive because the same charge weighs more heavily on poorer users."}]},{"id":"5c401a46-d892-42fc-804f-918794694aa8","cardType":"cloze","points":null,"front":"

A flat charge may be regressive because it hits poorer users hardest, while setting a price for clean air or road space creates a [ ].

","back":"

A flat charge may be regressive because it hits poorer users hardest, while setting a price for clean air or road space creates a valuation problem.

","mcqOptions":[{"text":"valuation problem","correct":true,"explanation":"Clean air and road space have no straightforward market price, so policymakers must estimate how much users value them and set a charge without a reliable observable valuation."},{"text":"externality problem","correct":false,"explanation":"An externality problem concerns spillover costs or benefits imposed on others, which may justify intervention. The specific difficulty described here is a valuation problem because the resource’s value is hard to measure."},{"text":"information problem","correct":false,"explanation":"An information problem is broader uncertainty or imperfect knowledge about market conditions. The relevant issue is specifically valuing clean air or road space accurately enough to set an appropriate price."},{"text":"enforcement problem","correct":false,"explanation":"An enforcement problem concerns detecting and penalising non-compliance with a charge. The difficulty identified is valuation: authorities may not know the correct monetary price for access to the resource."}]},{"id":"77122c8b-03a8-4f34-a4be-8b7272eed670","cardType":"basic","points":2,"front":"

How does London's Congestion Charge extend the price mechanism?

","back":"

The $\\pounds 15$ charge rations scarce road space and cuts traffic volumes.

","mcqOptions":[{"text":"

The $\\pounds 15$ charge rations scarce road space and cuts traffic volumes.

","correct":true,"explanation":"The charge raises the cost of using congested roads, so demand falls and scarce road space is rationed through the price mechanism. Lower demand reduces traffic volumes."},{"text":"The $\\pounds 15$ charge subsidises scarce road space and cuts traffic volumes.","correct":false,"explanation":"A charge is a price paid by road users, not a subsidy. It can ration scarce road space and reduce traffic, but the correct description uses a charge to raise the cost of use."},{"text":"The $\\pounds 15$ charge rations scarce road space and raises traffic volumes.","correct":false,"explanation":"The charge makes journeys more expensive, so some users switch routes, times or transport modes. This reduces rather than raises traffic volumes, while still rationing scarce road space."},{"text":"The $\\pounds 15$ charge provides unlimited road space and cuts traffic volumes.","correct":false,"explanation":"Road space remains physically scarce even when demand falls. The charge rations that limited space by pricing users out of some journeys, which cuts traffic volumes."}]},{"id":"34067025-f229-44cf-86fd-67deb0394b86","cardType":"basic","points":2,"front":"

Why might the Congestion Charge incentivise a delivery driver to switch to an electric van?

","back":"

It makes switching worthwhile when the discount exceeds the cost of switching.

","mcqOptions":[{"text":"

It makes switching worthwhile when the discount exceeds the cost of switching.

","correct":true,"explanation":"A driver compares the saving from the electric-van discount with the one-off or ongoing costs of changing vehicles. Switching is economically worthwhile when the saving is greater."},{"text":"It makes switching worthwhile when the discount equals the cost of switching.","correct":false,"explanation":"Equality leaves the driver financially indifferent, with no net gain from changing vehicles. Switching becomes worthwhile when the discount exceeds the cost of switching."},{"text":"It makes switching worthwhile when the discount is smaller than the cost of switching.","correct":false,"explanation":"A smaller discount cannot compensate for the expense of adopting an electric van, so the driver would tend to keep the existing vehicle. The discount must exceed switching costs."},{"text":"It makes switching worthwhile when the fuel cost exceeds the discount.","correct":false,"explanation":"Fuel costs alone do not establish whether switching pays off; the relevant comparison is the Congestion Charge discount against switching costs. The discount must exceed those costs."}]},{"id":"4c543625-d98c-4afd-a27e-e1051e7c8ad4","cardType":"basic","points":2,"front":"

How does the UK Emissions Trading Scheme extend the price mechanism?

","back":"

It gives emissions a financial cost per tonne of carbon dioxide.

","mcqOptions":[{"text":"

It gives emissions a financial cost per tonne of carbon dioxide.

","correct":true,"explanation":"The trading scheme makes emitting carbon dioxide financially costly through permits or allowances. This extends the price mechanism by attaching a monetary cost to each tonne released."},{"text":"It gives emissions a fixed physical limit per tonne of carbon dioxide.","correct":false,"explanation":"A physical limit restricts the quantity emitted but does not itself create a monetary price. The scheme extends the price mechanism by imposing a financial cost per tonne."},{"text":"It gives emissions a financial reward per tonne of carbon dioxide.","correct":false,"explanation":"Rewarding emissions would encourage pollution rather than make firms internalise its environmental cost. The scheme assigns a financial cost to each tonne of carbon dioxide emitted."},{"text":"It gives emissions a financial cost per litre of petrol.","correct":false,"explanation":"The scheme prices carbon dioxide emissions rather than directly pricing petrol by volume. Its relevant unit is a financial cost per tonne of carbon dioxide."}]},{"id":"035107e1-d797-4eca-843b-bcef10b10364","cardType":"basic","points":2,"front":"

When will a factory facing a carbon price choose to reduce emissions?

","back":"

It incentivises cuts when abatement costs less than paying the carbon price.

","mcqOptions":[{"text":"

It incentivises cuts when abatement costs less than paying the carbon price.

","correct":true,"explanation":"A factory minimises its costs by reducing emissions whenever the cost of abatement is below the carbon price it would otherwise pay. This creates an incentive to cut emissions."},{"text":"It incentivises cuts when abatement costs more than paying the carbon price.","correct":false,"explanation":"If abatement is more expensive than buying allowances or paying the carbon price, reducing emissions would increase the factory’s costs. Cuts are chosen when abatement costs less."},{"text":"It incentivises cuts when abatement costs the same as paying the carbon price.","correct":false,"explanation":"Equal costs make the factory indifferent between abating and paying, rather than creating a clear cost-saving incentive. The relevant condition for choosing cuts is a lower abatement cost."},{"text":"It incentivises cuts when output revenue falls below the carbon price.","correct":false,"explanation":"The decision compares the marginal cost of reducing emissions with the carbon price, not total output revenue. Cuts are worthwhile when abatement is cheaper than paying for emissions."}]},{"id":"39c118b2-9429-41cd-8234-c03ae1f45015","cardType":"basic","points":3,"front":"

What trade-off arises when pricing road space or carbon emissions?

","back":"

Efficiency gain: scarce resources are rationed and overuse falls.
Equity cost: poorer users bear a larger burden.
Valuation problem: accurate prices are difficult to calculate.

","mcqOptions":[{"text":"

Efficiency gain: scarce resources are rationed and overuse falls.
Equity cost: poorer users bear a larger burden.
Valuation problem: accurate prices are difficult to calculate.

","correct":true,"explanation":"Pricing can improve efficiency by reducing overuse of scarce resources, but it may disproportionately burden poorer users. Policymakers also face difficulty calculating prices that reflect true social value."},{"text":"

Efficiency gain: scarce resources are rationed and overuse falls.
Equity gain: poorer users receive a larger benefit.
Valuation problem: accurate prices are difficult to calculate.

","correct":false,"explanation":"Pricing may ration resources efficiently, but charges generally impose a relatively larger burden on poorer users rather than benefiting them more. The correct trade-off identifies this as an equity cost."},{"text":"

Efficiency cost: scarce resources are rationed and overuse falls.
Equity cost: poorer users bear a larger burden.
Valuation problem: accurate prices are difficult to calculate.

","correct":false,"explanation":"Rationing scarcity and reducing overuse are efficiency gains, not efficiency costs. The other concerns remain the distributional burden on poorer users and the difficulty of setting accurate prices."},{"text":"

Efficiency gain: scarce resources are rationed and overuse rises.
Equity cost: poorer users bear a larger burden.
Valuation problem: accurate prices are difficult to calculate.

","correct":false,"explanation":"Effective pricing should reduce overuse by making excessive consumption more costly. Saying overuse rises reverses the mechanism; the trade-off combines reduced overuse with equity and valuation concerns."}]}]}],"examCountdown":{"examDate":"2027-05-10","paperLabel":"Paper 1"},"heading":"1.8.1 How markets and prices allocate resources","title":"1.8.1 How markets and prices allocate resources Flashcards","topbar":{"backHref":"/a-level/economics/aqa/flashcards"},"topicSidebar":"$L38"}]}],"topicId":"0e02b130-d296-501d-a846-377c2c57b232","walled":"$L39"}],"$L3a","$L3b"]