WEBVTT

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A California city considers raising downtown parking prices to reduce the time drivers spend circling for a space.

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The goal sounds simple.

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The response may not be.

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Microeconomics studies choices under scarcity, how markets coordinate those choices, and when market outcomes create reasons for public action.

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Study preparation only.

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This episode does not award credit or determine transfer credit.

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Scarcity means available resources cannot satisfy every possible use.

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A city has limited curb space, staff time, land, and revenue.

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Choosing one use creates an opportunity cost, the value of the best alternative given up.

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A curb reserved for parking cannot simultaneously be a bus lane, loading zone, bike lane, or wider sidewalk.

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Marginal analysis compares the additional benefit of one more unit with its additional cost.

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The question is not whether parking is beneficial in general.

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It is whether the next space devoted to parking produces more benefit than the next best curb use.

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A rational decision continues while marginal benefit is at least as large as marginal cost, although real people have limited information and may use shortcuts.

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Demand describes quantities buyers are willing and able to purchase at different prices, holding other relevant factors constant.

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The demand curve usually slopes downward.

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At a higher parking price, some drivers shorten visits, use another location, change travel mode, or do not make the trip.

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Supply describes quantities sellers are willing and able to offer at different prices.

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For curb parking in a fixed downtown, short-run supply may be nearly fixed.

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Price cannot quickly create more curb.

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It can change who uses existing spaces and for how long.

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Market equilibrium occurs where quantity demanded equals quantity supplied.

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Equilibrium is not a moral judgment.

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It is the point where plans match under current conditions.

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A change in price causes movement along a demand or supply curve.

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A separate influence shifts a curve.

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If a new apartment building brings more residents downtown, parking demand may shift right.

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If construction removes a block of spaces, supply may shift left.

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Government price controls alter market adjustment.

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A binding price ceiling is set below equilibrium and tends to create a shortage.

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A binding price floor is set above equilibrium and tends to create a surplus.

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The legal price is only part of the cost.

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Underpriced parking may produce a queue measured in cruising time, fuel, uncertainty, and congestion.

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Efficiency and equity are different questions.

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A market may allocate a space to the driver willing to pay most, but willingness to pay depends partly on income.

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A city may value access for disabled residents, workers on late shifts, customers, deliveries, and emergency vehicles differently.

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Economic analysis can identify tradeoffs.

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Public judgment still chooses among values.

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Elasticity measures responsiveness.

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Price elasticity of demand compares the percentage change in quantity demanded with the percentage change in price.

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If quantity changes proportionally more than price, demand is elastic.

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If quantity changes proportionally less, demand is inelastic.

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Elasticity often varies by time period, available substitutes, share of a person's budget, and whether the purchase feels necessary.

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Suppose the city raises the hourly parking price by twenty percent.

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If occupied hours fall by thirty percent, demand appears elastic over that range.

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If occupied hours fall by two percent, demand appears inelastic.

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In the second case, revenue may rise while circling barely changes.

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A price can collect money without accomplishing the stated behavioral goal.

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Consumers allocate limited income among competing goods and services.

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Price changes alter both relative attractiveness and purchasing power.

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Habits, framing, and confusing meters can also affect choices.

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Taxes and fees create a wedge between what buyers pay and sellers receive.

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Statutory incidence identifies who sends payment to the government.

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Economic incidence identifies who ultimately bears the burden after prices and behavior adjust.

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The less elastic side of a market generally bears more of the burden because it has fewer ways to escape.

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If a city taxes garage operators, they may pass some cost to drivers.

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Operators absorb more when drivers have alternatives.

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Drivers bear more when they cannot adjust.

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Any deadweight loss should be compared with benefits from reducing congestion or funding services.

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Market structure changes firm behavior.

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In perfect competition, many buyers and sellers trade a standardized product, entry is relatively easy, and no single firm controls price.

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Competitive pressure tends to push price toward the cost of producing an additional unit over time.

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Monopolistic competition has many sellers with differentiated products.

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Oligopoly has few major sellers whose choices affect one another.

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A monopoly has one seller, barriers to entry, and no close substitute.

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It can restrict output and charge more than stronger competition would allow.

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Monopoly power can come from legal protection, network effects, or economies of scale.

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Local government encounters monopoly questions in utilities, waste hauling, and software.

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Contracts should address rates, quality, data portability, performance, and exit.

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Regulation, public ownership, and competitive bidding are possible responses.

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Markets may fail when prices omit costs or benefits affecting others.

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An externality is a spillover on someone outside a transaction.

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A driver who circles for parking adds delay and pollution experienced by bus riders, pedestrians, nearby residents, and other drivers.

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Those social costs may exceed the private fuel and time costs the driver considers.

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A corrective tax or congestion price can make part of an external cost visible to the decision maker.

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Regulation can set limits directly.

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Tradable permits can cap a total quantity while allowing exchange.

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Each instrument requires measurement and administration.

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Setting the perfect price is difficult when damages vary by place and time.

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A public good is nonrival and nonexcludable.

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Nonrival means one person's use does not substantially reduce another's.

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Nonexcludable means keeping nonpayers from benefiting is difficult.

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Emergency warning information and some forms of basic scientific knowledge are examples.

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Private markets may underprovide public goods because people can free ride.

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Common resources are different.

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They are difficult to exclude people from, but one person's use reduces what remains.

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A fishery is the standard example.

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Congested public streets can share this feature.

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Street parking is rival because one vehicle occupies a space, and meters or permits can make it excludable.

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Public ownership does not automatically make something a public good.

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Apply the analysis to downtown parking.

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Begin with a measurable objective, such as one available space per block at peak hours.

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Collect occupancy, turnover, circling, transit delay, and revenue data.

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Test elasticity in a limited area and period.

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A late-shift worker may respond differently from a shopper with substitutes.

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Equity protections should be explicit.

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Options include an overnight worker permit, accessible spaces, improved loading rules, or transit investment.

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A permit that is too broad can recreate the shortage.

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Finally, name the externality and the market structure accurately.

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Circling creates external costs.

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The curb itself is scarce and rival.

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A contracted parking-app vendor may have market power if switching is costly.

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Clear labels lead to narrower remedies and better measurements.

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Three recall questions.

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First, why does elasticity matter when a city changes a price?

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Second, who bears a tax or fee?

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Third, how do an externality and a public good differ?

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First answer: elasticity indicates whether a price change is likely to cause a large behavioral response or mostly change payment and revenue.

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Second answer: the legal payer sends the money, but the economic burden is shared according to how buyers and sellers adjust.

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The less responsive side usually bears more.

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Third answer: an externality is a cost or benefit imposed on outsiders.

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A public good is both nonrival and nonexcludable, which can lead private markets to provide too little.

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Artifact: write a two-hundred-fifty-word California city parking memo.

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State the scarce resource and opportunity cost, the externality, your elasticity hypothesis, expected tax or fee incidence, one equity concern, and one sixty-day measurement.

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Add one sentence explaining why the curb is not a public good and one alternative policy.

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Source note: This original study script draws on OpenStax, Principles of Microeconomics 3e, especially Chapters 1 through 6 on economic choice, tradeoffs, supply and demand, price controls, elasticity, and consumer choice;

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Chapter 10, Monopolistic Competition and Oligopoly;

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Chapter 11, Monopoly and Antitrust Policy;

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Chapter 12, Environmental Protection and Negative Externalities;

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and Chapter 13, Positive Externalities and Public Goods.

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The current OpenStax web preface states a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 license, CC BY-NC-SA 4.0.

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Access for free at openstax.org.

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It also summarizes, without quoting, the public Modern States Principles of Microeconomics course overview and public Khan Academy microeconomics lessons on scarcity, marginal analysis, supply and demand, elasticity, price controls, tax incidence, market structure, externalities, and public goods.

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Study preparation only.

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No credit is awarded or guaranteed.