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The correct term is productive efficiency, which focuses on minimum average cost."},{"text":"dynamic efficiency","correct":false,"explanation":"This concerns efficiency improvements over time from innovation and investment. The correct term is productive efficiency because the focus is on the lowest current average cost."},{"text":"technical efficiency","correct":false,"explanation":"Technical efficiency means obtaining maximum output from given inputs, but this question specifically identifies minimum average cost. The correct answer is productive efficiency."}]},{"id":"aa687ff8-b207-46aa-bd31-5bdebb93cb3b","cardType":"cloze","points":null,"front":"When price equals marginal cost and goods reflect consumer wants, there is [ ].","back":"When price equals marginal cost and goods reflect consumer wants, there is allocative efficiency.","mcqOptions":[{"text":"allocative efficiency","correct":true,"explanation":"Allocative efficiency exists when price equals marginal cost and production reflects what consumers want, meaning resources are directed towards their highest-valued uses."},{"text":"productive efficiency","correct":false,"explanation":"This refers to producing at the lowest average cost. The correct term is allocative efficiency because the conditions concern price, marginal cost and consumer preferences."},{"text":"dynamic efficiency","correct":false,"explanation":"Dynamic efficiency describes improvements caused by investment and innovation over time. The correct answer is allocative efficiency, identified here by price equalling marginal cost."},{"text":"X-inefficiency","correct":false,"explanation":"X-inefficiency occurs when poor management allows costs to exceed the minimum possible level. The correct answer is allocative efficiency, which links output to consumer wants."}]},{"id":"0f092532-beb2-4f76-badc-314da4f27a15","cardType":"cloze","points":null,"front":"Efficiency gains over time from investment and innovation are called [ ].","back":"Efficiency gains over time from investment and innovation are called dynamic efficiency.","mcqOptions":[{"text":"dynamic efficiency","correct":true,"explanation":"Dynamic efficiency is achieved when investment and innovation reduce costs or improve products over time, increasing the economy’s productive potential."},{"text":"productive efficiency","correct":false,"explanation":"Productive efficiency is producing at the lowest average cost at a particular time. The correct answer is dynamic efficiency because the gains develop through investment and innovation."},{"text":"allocative efficiency","correct":false,"explanation":"Allocative efficiency concerns producing the goods consumers value, usually where price equals marginal cost. The correct answer is dynamic efficiency because the question concerns change over time."},{"text":"static efficiency","correct":false,"explanation":"Static efficiency focuses on efficient resource use at a given point rather than improvements over time. The correct term is dynamic efficiency."}]},{"id":"70edbdd1-2d44-45b5-ad1d-310b164abadd","cardType":"cloze","points":null,"front":"A privatised utility's permitted annual average price increase is $\\text{[...]}$.","back":"A privatised utility's permitted annual average price increase is $\\boxed{\\text{RPI} - X}$.","mcqOptions":[{"text":"$$\\text{RPI} - X$","correct":true,"explanation":"The RPI-X formula allows prices to rise with inflation measured by the Retail Prices Index, reduced by an efficiency factor that shares expected cost savings with consumers."},{"text":"$$\\text{RPI} + X$","correct":false,"explanation":"Adding X would reward the utility for expected efficiency improvements instead of passing savings to consumers. The correct formula subtracts X from RPI."},{"text":"$$\\text{RPI} - 2X$","correct":false,"explanation":"Subtracting twice the efficiency factor applies a stricter cap than the standard formula and exaggerates expected savings. The correct permitted increase is RPI minus X."},{"text":"$$\\text{CPI} - X$","correct":false,"explanation":"This uses the Consumer Prices Index rather than the Retail Prices Index specified by the price-cap formula. The correct expression is RPI minus X."}]},{"id":"8dea9883-783a-4610-9f46-32f56240193e","cardType":"cloze","points":null,"front":"When a regulator acts for regulated firms rather than consumers, this is [ ].","back":"When a regulator acts for regulated firms rather than consumers, this is regulatory capture.","mcqOptions":[{"text":"regulatory capture","correct":true,"explanation":"Regulatory capture occurs when a regulator becomes influenced by the industry it oversees and begins serving firms’ interests rather than protecting consumers."},{"text":"asymmetric information","correct":false,"explanation":"Asymmetric information means one party has better information than another, such as a firm knowing its costs. The correct term here is regulatory capture."},{"text":"moral hazard","correct":false,"explanation":"Moral hazard involves changing behaviour because someone else bears part of the risk. Acting for regulated firms describes regulatory capture."},{"text":"regulatory failure","correct":false,"explanation":"Regulatory failure is the broader outcome where intervention does not improve welfare. The specific cause described, favouring firms over consumers, is regulatory capture."}]},{"id":"7c7c2ef4-87cf-4422-b392-4911c6aafb73","cardType":"cloze","points":null,"front":"When a regulated firm knows more about its costs than the regulator, there is [ ].","back":"When a regulated firm knows more about its costs than the regulator, there is asymmetric information.","mcqOptions":[{"text":"asymmetric information","correct":true,"explanation":"Asymmetric information exists when one side of a transaction has more relevant information than the other. Here, the firm knows more about its costs than the regulator."},{"text":"regulatory capture","correct":false,"explanation":"Regulatory capture occurs when regulators act in the interests of regulated firms. The correct term is asymmetric information because the issue is unequal knowledge of costs."},{"text":"moral hazard","correct":false,"explanation":"Moral hazard concerns hidden actions after an agreement has been made. The question describes hidden or superior information about costs, which is asymmetric information."},{"text":"economies of scale","correct":false,"explanation":"Economies of scale are falling average costs as output increases. They do not describe an information gap, so the correct answer is asymmetric information."}]},{"id":"e1a46ec3-e99f-41fe-90ac-57ae6e0a1e54","cardType":"basic","points":2,"front":"How can price caps affect consumers?","back":"Prices fall towards competitive levels, increasing consumer surplus.","mcqOptions":[{"text":"Prices fall towards competitive levels, increasing consumer surplus.","correct":true,"explanation":"A binding price cap limits monopoly pricing and can push prices closer to competitive levels. Consumers then pay less and gain more consumer surplus."},{"text":"Prices rise above competitive levels, reducing consumer surplus.","correct":false,"explanation":"A binding cap is intended to restrict prices rather than raise them above competitive levels. The correct effect is lower prices towards competitive levels, increasing consumer surplus."},{"text":"Prices fall towards zero-cost levels, eliminating consumer surplus.","correct":false,"explanation":"A price cap does not normally force prices to zero or eliminate consumer surplus. The correct effect is movement towards competitive levels, which increases consumer surplus."},{"text":"Prices remain at monopoly levels, increasing producer surplus.","correct":false,"explanation":"An effective cap prevents a monopoly from maintaining its unrestricted price. The correct outcome is prices moving towards competitive levels and consumer surplus increasing."}]},{"id":"c09ed6d4-2b6c-46f6-867e-f29d4e331381","cardType":"basic","points":2,"front":"How can profit regulation affect a monopoly's profit?","back":"It erodes supernormal profit.","mcqOptions":[{"text":"It erodes supernormal profit.","correct":true,"explanation":"Profit regulation restricts the return a monopoly can earn, so excess profit above the normal level is reduced or removed."},{"text":"It protects supernormal profit.","correct":false,"explanation":"Regulation is designed to limit excessive monopoly returns, not protect them. The correct effect is that regulation erodes supernormal profit."},{"text":"It converts supernormal profit into losses.","correct":false,"explanation":"Regulation may reduce excess profit, but it is not necessarily intended to make the firm loss-making. The correct general effect is erosion of supernormal profit."},{"text":"It increases normal profit into supernormal profit.","correct":false,"explanation":"Profit regulation places a constraint on returns rather than increasing them. The correct effect is a reduction in supernormal profit."}]},{"id":"48974f10-615f-4783-8349-089a125b4f3b","cardType":"basic","points":2,"front":"How can a price cap improve productive efficiency?","back":"Pressure to cut costs lowers average cost.","mcqOptions":[{"text":"Pressure to cut costs lowers average cost.","correct":true,"explanation":"A price cap limits the revenue available at each price, encouraging the firm to reduce costs. Lower average cost represents an improvement in productive efficiency."},{"text":"Pressure to raise prices lowers average cost.","correct":false,"explanation":"A cap restricts price increases, so raising prices is not the relevant efficiency pressure. The correct mechanism is cutting costs to lower average cost."},{"text":"Pressure to increase output eliminates marginal cost.","correct":false,"explanation":"Greater output may affect average cost, but it cannot eliminate marginal cost. The correct explanation is that price-cap pressure encourages cost cutting."},{"text":"Pressure to reduce quality lowers average cost.","correct":false,"explanation":"Reducing quality may lower some costs but is not the intended basis of productive efficiency and can harm consumers. The correct mechanism is pressure to cut costs."}]},{"id":"9f066e80-12c7-4765-95c0-637b17b26ef5","cardType":"basic","points":2,"front":"How can stronger competition improve allocative efficiency?","back":"Competition moves price towards marginal cost.","mcqOptions":[{"text":"Competition moves price towards marginal cost.","correct":true,"explanation":"Competitive pressure limits firms’ ability to charge above the cost of the last unit produced. As price moves towards marginal cost, allocative efficiency improves."},{"text":"Competition moves price above marginal cost.","correct":false,"explanation":"Moving price further above marginal cost is associated with market power and allocative inefficiency. Competition instead pushes price towards marginal cost."},{"text":"Competition moves average cost towards price.","correct":false,"explanation":"This describes a possible relationship involving costs, but allocative efficiency specifically requires price to move towards marginal cost. The distractor confuses average and marginal cost."},{"text":"Competition moves marginal cost towards zero.","correct":false,"explanation":"Competition does not generally make marginal cost zero. Allocative efficiency improves because competition moves the price closer to the marginal cost."}]},{"id":"4df0493a-df6d-49fa-8787-773680f9acff","cardType":"basic","points":2,"front":"Why can tight profit regulation harm dynamic efficiency?","back":"Lower retained profit reduces funds and incentives for investment.","mcqOptions":[{"text":"Lower retained profit reduces funds and incentives for investment.","correct":true,"explanation":"Investment often depends on retained earnings and expected returns. Tight profit controls reduce both available finance and the incentive to fund innovation, weakening dynamic efficiency."},{"text":"Lower retained profit increases funds and incentives for investment.","correct":false,"explanation":"Lower retained earnings reduce internal finance, while restricted returns can weaken investment incentives. The correct effect is reduced funds and incentives for investment."},{"text":"Lower retained profit reduces current output and consumer choice.","correct":false,"explanation":"These may be possible consequences in some cases, but the specific dynamic-efficiency channel is reduced investment finance and incentives. That is the correct answer."},{"text":"Lower retained profit increases productive efficiency immediately.","correct":false,"explanation":"Profit regulation may create cost pressure, but dynamic efficiency depends on future investment and innovation. The correct concern is reduced funds and incentives for investment."}]},{"id":"f46214bd-8c7e-4b01-853a-32cb0631bf63","cardType":"basic","points":2,"front":"Why may regulators impose quality standards and performance targets?","back":"They protect service quality despite pressure to reduce costs.","mcqOptions":[{"text":"They protect service quality despite pressure to reduce costs.","correct":true,"explanation":"Cost-cutting incentives can lead firms to reduce reliability, safety or customer service. Standards and targets prevent these reductions from damaging the quality consumers receive."},{"text":"They increase service prices despite pressure to reduce costs.","correct":false,"explanation":"Quality standards regulate the level of service rather than directly raising prices. The correct purpose is protecting service quality while firms face cost pressure."},{"text":"They protect monopoly profits despite pressure to reduce costs.","correct":false,"explanation":"Standards and targets are intended to protect consumers from declining service, not preserve monopoly profits. The correct answer concerns service quality."},{"text":"They remove the need for cost control despite pressure to reduce costs.","correct":false,"explanation":"Quality regulation does not remove the need for efficiency or cost control. It ensures that cost reductions do not undermine service quality."}]},{"id":"169ce838-6fdb-4031-9047-9381e008b553","cardType":"basic","points":3,"front":"Compare how competition and nationalisation affect consumer choice.","back":"

Competition widens consumer choice.
Nationalisation into one provider narrows consumer choice.

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

Competition widens consumer choice.
Nationalisation into one provider narrows consumer choice.

","correct":true,"explanation":"Competing firms have incentives to offer different products and services, widening choice. A single nationalised provider usually offers fewer alternatives, narrowing consumer choice."},{"text":"

Competition narrows consumer choice.
Nationalisation into one provider widens consumer choice.

","correct":false,"explanation":"Competition generally creates more alternatives, while one provider removes competing options. The correct comparison is that competition widens choice and nationalisation narrows it."},{"text":"

Competition widens consumer choice.
Nationalisation into one provider widens consumer choice.

","correct":false,"explanation":"The first point is correct, but a single provider does not normally widen choice because consumers cannot select among competing suppliers. Nationalisation narrows consumer choice."},{"text":"

Competition narrows consumer choice.
Nationalisation into one provider narrows consumer choice.

","correct":false,"explanation":"A single provider may narrow choice, but competition normally increases the number of alternatives available. The correct comparison says competition widens choice and nationalisation narrows it."}]},{"id":"aa152ba7-5ce1-40f1-b228-db77cc297bca","cardType":"basic","points":2,"front":"How can regulatory capture weaken regulation?","back":"Close contact and lobbying encourage weak caps or lenient targets.","mcqOptions":[{"text":"Close contact and lobbying encourage weak caps or lenient targets.","correct":true,"explanation":"Close relationships and industry lobbying can influence regulators to favour firms. This may produce less demanding price caps or performance targets, weakening consumer protection."},{"text":"Close contact and lobbying encourage strict caps or demanding targets.","correct":false,"explanation":"Regulatory capture usually makes regulation more favourable to firms, not more demanding. The correct consequence is weak caps or lenient targets."},{"text":"Close contact and lobbying encourage lower costs or higher quality.","correct":false,"explanation":"These could be beneficial outcomes of effective regulation, but capture describes industry influence weakening regulation. The correct result is weak caps or lenient targets."},{"text":"Close contact and lobbying encourage competitive prices or wider choice.","correct":false,"explanation":"Capture does not directly create stronger competition or wider choice. It can soften regulatory requirements, so the correct result is weak caps or lenient targets."}]},{"id":"0bdc4357-9c63-4c12-9243-2632ecb190e9","cardType":"basic","points":2,"front":"What may happen if asymmetric information causes a price cap to be too tight?","back":"It can starve the firm of investment funds.","mcqOptions":[{"text":"It can starve the firm of investment funds.","correct":true,"explanation":"If the regulator underestimates costs, the cap may leave insufficient revenue after costs. The firm then has less retained finance available for investment and innovation."},{"text":"It can give the firm excessive investment funds.","correct":false,"explanation":"A cap that is too tight restricts revenue rather than providing excess funds. The correct consequence of underestimated costs is that investment finance may be starved."},{"text":"It can protect the firm’s supernormal profit.","correct":false,"explanation":"A very tight cap is likely to reduce profits, not protect excess returns. The correct consequence is insufficient funds for investment."},{"text":"It can remove pressure to control costs.","correct":false,"explanation":"A tight cap usually increases pressure to control costs because revenue is constrained. The main risk described is that investment funds become insufficient."}]},{"id":"d43c3a16-8d1c-4b4f-ad83-7e99c2b0dc3b","cardType":"basic","points":2,"front":"What may happen if asymmetric information causes a price cap to be too generous?","back":"The firm may retain supernormal profit.","mcqOptions":[{"text":"The firm may retain supernormal profit.","correct":true,"explanation":"When a cap is too generous, the firm can charge more than necessary to cover costs and earn an excess return. That excess return is supernormal profit."},{"text":"normal profit","correct":false,"explanation":"Normal profit is the minimum return needed to keep resources in their current use, not an excess return caused by generous pricing. The correct answer is supernormal profit."},{"text":"losses","correct":false,"explanation":"A generous cap allows higher revenue relative to costs, making losses less likely rather than inevitable. The correct possibility is that the firm retains supernormal profit."},{"text":"consumer surplus","correct":false,"explanation":"Consumer surplus is the benefit consumers receive when paying less than their willingness to pay. The firm’s retained excess return is supernormal profit."}]},{"id":"5781c818-703c-4e7c-bbdf-2a400517612e","cardType":"basic","points":2,"front":"When does government intervention represent government failure?","back":"When intervention's costs and distortions exceed the market failure addressed.","mcqOptions":[{"text":"When intervention's costs and distortions exceed the market failure addressed.","correct":true,"explanation":"Government failure occurs when the costs and distortions created by intervention are greater than the market failure it was intended to correct, leaving overall economic welfare lower."},{"text":"When intervention's benefits and efficiencies exceed the market failure addressed.","correct":false,"explanation":"This reverses the condition for government failure: benefits exceeding the original market failure suggest successful intervention. Government failure occurs when intervention's costs and distortions exceed the market failure addressed."},{"text":"When intervention's costs and distortions equal the market failure addressed.","correct":false,"explanation":"Equality would mean intervention merely offsets the market failure, rather than making outcomes worse. Government failure requires intervention's costs and distortions to exceed the market failure addressed."},{"text":"When intervention's costs and distortions are unrelated to the market failure addressed.","correct":false,"explanation":"Intervention can still be government failure even when its costs relate directly to the problem. The key test is whether those costs and distortions exceed the market failure being addressed."}]},{"id":"ef45f7bc-f328-421d-9c67-5fa931a4508e","cardType":"basic","points":2,"front":"Why may regulation be preferable in a natural monopoly?","back":"Competition would cause wasteful duplication, so regulation restrains monopoly pricing.","mcqOptions":[{"text":"Competition would cause wasteful duplication, so regulation restrains monopoly pricing.","correct":true,"explanation":"A natural monopoly has substantial economies of scale, so competing firms may duplicate expensive infrastructure unnecessarily. Regulation can therefore restrain the monopoly’s prices while preserving the efficiency of one supplier."},{"text":"Competition would cause economies of scale, so regulation encourages monopoly pricing.","correct":false,"explanation":"Economies of scale are why one supplier may be efficient, not a reason to encourage monopoly pricing. Regulation is used to restrain the pricing power created by the natural monopoly."},{"text":"Competition would cause productive efficiency, so regulation prevents lower prices.","correct":false,"explanation":"Competition can promote productive efficiency and lower prices, so preventing those outcomes would not justify regulation. Regulation is preferable where rival firms would wastefully duplicate infrastructure."},{"text":"Competition would cause allocative efficiency, so regulation increases consumer choice.","correct":false,"explanation":"Allocative efficiency and greater consumer choice are potential benefits of competition, not reasons it is unsuitable. Regulation is needed when competition would produce wasteful duplication in a natural monopoly."}]},{"id":"e336c6eb-5bca-44d8-b4ee-15b6eeacc4a7","cardType":"basic","points":2,"front":"Why may competition work better where market entry is feasible?","back":"It uses the profit motive to cut prices and drive innovation.","mcqOptions":[{"text":"It uses the profit motive to cut prices and drive innovation.","correct":true,"explanation":"When firms can enter a market, the prospect of profit encourages them to reduce costs and prices, while rivalry gives them incentives to innovate and attract customers."},{"text":"It uses the government motive to cut prices and drive innovation.","correct":false,"explanation":"Governments can influence prices through regulation, but the competitive mechanism described here is firms seeking profits. The profit motive encourages price competition, efficiency and innovation when entry is feasible."},{"text":"It uses the profit motive to raise prices and reduce innovation.","correct":false,"explanation":"The profit motive does not generally encourage firms to raise prices and reduce innovation when entry is possible, because rivals could attract customers. It instead drives lower prices and innovation."},{"text":"It uses the consumer motive to cut prices and drive innovation.","correct":false,"explanation":"Consumers create demand, but they do not directly provide the motive for firms to compete. The profit motive encourages businesses to cut prices and innovate to win and retain customers."}]},{"id":"8cfb934a-094b-46e6-95de-2510f700b8fd","cardType":"basic","points":1,"front":"What CMA action illustrates the promotion of competition?","back":"It forced Meta to sell Giphy in 2022.","mcqOptions":[{"text":"It forced Meta to sell Giphy in 2022.","correct":true,"explanation":"The CMA required Meta to sell Giphy in 2022 after finding that the acquisition could reduce competition in the supply of animated images and limit innovation."},{"text":"It forced Google to sell YouTube in 2022.","correct":false,"explanation":"This names the wrong company and asset. The relevant CMA action was requiring Meta to sell Giphy in 2022 because the acquisition threatened competition and innovation."},{"text":"It forced Meta to sell Instagram in 2021.","correct":false,"explanation":"The CMA did not require Meta to sell Instagram in 2021. Its relevant competition action was forcing Meta to sell Giphy in 2022 following concerns about the acquisition."},{"text":"It forced Microsoft to sell LinkedIn in 2022.","correct":false,"explanation":"This confuses a different technology company and platform with the CMA case. The action illustrating competition promotion was forcing Meta to sell Giphy in 2022."}]},{"id":"f4c4e647-e6c7-4294-88cf-e39ebd862fe8","cardType":"basic","points":3,"front":"When is competition preferable to regulation, and when is regulation necessary?","back":"

Competition is preferable where entry is feasible.
Regulation is necessary for genuine natural monopolies.

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

Competition is preferable where entry is feasible.
Regulation is necessary for genuine natural monopolies.

","correct":true,"explanation":"Competition is preferable when new firms can enter and rivalry can lower prices and encourage innovation. Regulation is necessary for genuine natural monopolies, where competing infrastructure would be inefficiently duplicated."},{"text":"

Regulation is preferable where entry is feasible.
Competition is necessary for genuine natural monopolies.

","correct":false,"explanation":"The two policies are reversed. Feasible entry allows competition to discipline firms, while genuine natural monopolies require regulation because multiple suppliers would create wasteful duplication."},{"text":"

Competition is preferable where entry is infeasible.
Regulation is necessary for contestable markets.

","correct":false,"explanation":"Infeasible entry prevents potential rivals from disciplining an incumbent, making competition less effective. Regulation is most necessary for natural monopolies, not contestable markets where entry is feasible."},{"text":"

Regulation is preferable where entry is infeasible.
Competition is necessary for genuine natural monopolies.

","correct":false,"explanation":"The first point can be plausible where entry is blocked, but the second is wrong: natural monopolies are regulated because competition would duplicate infrastructure wastefully. Competition is preferable where entry is feasible.