D2.Eco.6.9-12: Explaining a Government Role When Markets Fall Short

Overview

Lesson Procedure

60-75 minutes of class time across 5 phases.

1. Warm-Up5-10 minutes
2. Direct Instruction15-20 minutes
3. Guided Practice15 minutes
4. Independent Practice15 minutes
5. Closure10-15 minutes

1. Warm-Up5-10 minutes

   Warm-Up Prompt

   "Name one thing that almost everyone benefits from but that no business would sell to you one customer at a time. Then name one thing you buy whose quality you cannot check before you pay."

   Collect answers in two lists. Typical answers: street lights, national defense, flood walls; used cars, medicine, a mechanic's repair. Tell students that each list points to a way markets can fall short, and that D2.Eco.6.9-12 asks them to generate possible explanations for what, if anything, government should do about it. Stress "possible": the goal is to build and weigh explanations, not to settle on one answer.

2. Direct Instruction15-20 minutes

   Key terms for D2.Eco.6.9-12 (working definitions)

   Term	Meaning	Example
   Market inefficiency (market failure)	A market outcome that leaves society worse off than another outcome could	Too much smoke, too little recycling, or prices far above cost
   Spillover cost or benefit (externality)	A cost or benefit that falls on people outside the sale	Noise from a late-night club; a neighbor's beautiful garden
   Public good	A good that is hard to keep non-payers from using, and one person's use does not reduce another's	A fireworks show seen across a whole town
   Free rider	Someone who benefits without paying, expecting others to pay	A resident who enjoys the fireworks but never donates
   Natural monopoly	A market where one supplier can serve everyone at lower cost than two or more could	The wires that bring electricity to homes
   Hidden information	One side of a sale knows much more about quality than the other	A seller who knows a used phone's battery is failing
   Government failure	A government action that costs more than it helps, or makes the problem worse	A rule so complex that small firms cannot follow it

   Part 1: Four inefficiencies. Show Diagram 1. In each box, the market falls short for a different reason, so the possible government roles differ too.

   Part 2: How to generate an explanation. A full explanation has four parts: (1) name the inefficiency and the evidence for it; (2) propose a role (a fee or tax, a rule, public provision, rate regulation, or required information); (3) explain how the role changes what buyers or sellers do; (4) name a cost, a risk of government failure, or a private alternative. Work these examples, all invented.

   • Spillover cost: a fee per unit (invented)

     A cement plant's own cost is $80 a ton, and it sells cement for $90 a ton. Dust from the plant causes about $15 a ton of cleaning and health costs for neighbors. What is the full cost to society per ton, and what would a $15 fee per ton do?

     Result: Full cost: $80 + $15 = $95 a ton, more than the $90 price, so each ton sold costs society $5 more than buyers pay for it. With a $15 fee the plant's cost becomes $95. It would raise its price, sell less, or cut dust (for example with filters) to avoid the fee. Possible concerns: setting the fee correctly and the effect on workers if sales fall.

   • Public good: the free-rider problem (invented)

     A town's Fourth of July fireworks cost $24,000. The town has 3,000 households. Last year a volunteer drive raised money from 750 households at $10 each. How much did donations cover, and what would a fee on every household cost each one?

     Result: Donations: 750 x $10 = $7,500, which is 7,500 / 24,000, about 31% of the cost. Shared by all 3,000 households, the cost is $24,000 / 3,000 = $8 each. Because no one can be kept from seeing the show, many residents ride free, which is one explanation for tax funding. A counterargument: households that do not want fireworks would be made to pay.

   • Natural monopoly: regulating the price (invented)

     One company owns a town's power lines. It charges $0.20 a kilowatt-hour, while regulators estimate that $0.15 covers its full cost, including a fair profit. A household uses 700 kilowatt-hours a month. What would a regulated price save the household each month?

     Result: At $0.20: 700 x $0.20 = $140. At $0.15: 700 x $0.15 = $105. The household saves $35 a month. Building a second set of lines would cost far more than one network, so competition cannot fix the price. Possible roles: a rate board, public ownership, or letting firms bid for a time-limited franchise. Risk: a rate set too low can leave the lines poorly maintained.

   • Hidden information: required disclosure (invented)

     In a city, diners cannot see a restaurant's kitchen. The city starts posting inspection grades (A, B or C) in each window. How could this change what diners and restaurants do?

     Result: Diners can now choose with better information, so restaurants with dirty kitchens lose customers unless they improve. The role is information, not a ban. Alternatives: online reviews or a private rating service. Costs: paying inspectors, and grades that may be out of date between visits.

   Teacher tip. Students often jump from "there is a problem" to "the government should ban it." Push for at least two different possible roles and one private alternative for every case, and ask how each would change people's incentives. Also ask students to name what could go wrong with the government's role. Strong explanations treat both market failure and government failure as possible.

3. Guided Practice15 minutes

   A classic argument. Context note: John Stuart Mill (1806-1873) was a British philosopher and economist best known for defending individual liberty. His Principles of Political Economy (1848) was a leading economics textbook for decades. In the chapter quoted in Source 1, he first lists reasons against government action and then names exceptions. Source 1 uses an American printing of the fifth edition. Read Source 1 aloud. Glossary: "intervention" (stepping in), "public authority" (government), "laisser-faire" (French for "let it be": leaving markets alone), "abatements" (reductions, limits), "commodity" (a good for sale), "ministering to inclinations" (satisfying what people feel like having), "agency" (the business or body that provides a service), "virtually single" (in practice only one), "adverted to" (mentioned), "indemnified" (paid back), "compulsory levy" (a required payment, such as a tax).

   1The preceding are the principal reasons, of a general character, in favour of restricting to the narrowest compass the intervention of a public authority in the business of the community: and few will dispute the more than sufficiency of these reasons, to throw, in every instance, the burden of making out a strong case, not on those who resist, but on those who recommend, government interference. Laisser-faire, in short, should be the general practice: every departure from it, unless required by some great good, is a certain evil. [...]

   [...]

   2Now, the proposition that the consumer is a competent judge of the commodity, can be admitted only with numerous abatements and exceptions. He is generally the best judge (though even this is not true universally) of the material objects produced for his use. [...] But there are other things of the worth of which the demand of the market is by no means a test; things of which the utility does not consist in ministering to inclinations, nor in serving the daily uses of life, and the want of which is least felt where the need is greatest. [...]

   [...]

   3[...] There are many cases in which the agency, of whatever nature, by which a service is performed, is certain, from the nature of the case, to be virtually single; in which a practical monopoly, with all the power it confers of taxing the community, cannot be prevented from existing. I have already more than once adverted to the case of the gas and water companies, among which, though perfect freedom is allowed to competition, none really takes place, and practically they are found to be even more irresponsible, and unapproachable by individual complaints, than the government. [...] the community needs some other security for the fit performance of the service than the interest of the managers; and it is the part of government, either to subject the business to reasonable conditions for the general advantage, or to retain such power over it, that the profits of the monopoly may at least be obtained for the public. [...]

   [...]

   4[...] Again, it is a proper office of government to build and maintain lighthouses, establish buoys, &c., for the security of navigation: for since it is impossible that the ships at sea which are benefited by a lighthouse, should be made to pay a toll on the occasion of its use, no one would build lighthouses from motives of personal interest, unless indemnified and rewarded from a compulsory levy made by the state. [...]

   1. Sourcing. Prompt: Mill is famous as a defender of liberty. Why does that make his exceptions to laisser-faire worth noticing? Teacher note: a writer who starts from a strong presumption against government action, and still names exceptions, cannot easily be dismissed as simply favoring government.
   2. The rule. Prompt: restate paragraph 1 in one sentence of your own. Teacher note: leaving markets alone should be the normal practice, and any government step needs a strong reason, "some great good."
   3. Consumers as judges. Prompt: in paragraph 2, for what kind of goods does Mill say the buyer is generally the best judge? Teacher note: "material objects produced for his use," ordinary goods that satisfy wants the buyer feels. In the full chapter his main example of the other kind of good is education.
   4. Evidence. Prompt: Mill gives reasons but no numbers. What kind of evidence would you want today to test one of his exceptions? Teacher note: accept answers such as prices and costs of water systems, records of lighthouse funding, or data on what consumers know about products. Keep the list for Activity 3.
4. Independent Practice15 minutes

   Food fraud in 1820. Context note: Fredrick Accum was a German-born chemist in London. His 1820 book exposed common ways sellers secretly mixed cheap or harmful substances into food and drink, and it explained simple chemical tests that readers could use. Britain passed its first general law against food adulteration in 1860, forty years later. Students read Source 2 on their own. Glossary: "mercenary" (motivated only by money), "reprehensible" (deserving blame), "prevalent" (common), "sophistication" (here: secretly mixing in cheaper or false ingredients), "nefarious" (wicked), "spurious" (fake), "discrimination" (here: the ability to tell things apart), "deleterious" (harmful), "vended" (sold), "apprised" (informed), "pernicious" (harmful), "auxiliary" (helper).

   1Of all the frauds practised by mercenary dealers, there is none more reprehensible, and at the same time more prevalent, than the sophistication of the various articles of food.

   2This unprincipled and nefarious practice, increasing in degree as it has been found difficult of detection, is now applied to almost every commodity which can be classed among either the necessaries or the luxuries of life, and is carried on to a most alarming extent in every part of the United Kingdom.

   [...]

   3To such perfection of ingenuity has this system of adulterating food arrived, that spurious articles of various kinds are every where to be found, made up so skilfully as to baffle the discrimination of the most experienced judges.

   [...]

   4Some of these spurious compounds are comparatively harmless when used as food; and as in these cases merely substances of inferior value are substituted for more costly and genuine ingredients, the sophistication, though it may affect our purse, does not injure our health. [...] Others, however, are highly deleterious; and to this class belong the adulterations of beer, wines, spiritous liquors, pickles, salad oil, and many others.

   [...]

   5[...] I have had abundant reason to be convinced that a vast number of dealers, of the highest respectability, have vended to their customers articles absolutely poisonous, which they themselves considered as harmless, and which they would not have offered for sale, had they been apprised of the spurious and pernicious nature of the compounds, and of the purposes to which they were destined.

   [...]

   6It is not less lamentable that the extensive application of chemistry to the useful purposes of life, should have been perverted into an auxiliary to this nefarious traffic. But, happily for the science, it may, without difficulty, be converted into a means of detecting the abuse; to effect which, very little chemical skill is required; and the course to be pursued forms the object of the following pages.

   Students answer on their own: (1) Besides buyers, who else could be hurt when some sellers secretly cut costs this way? (2) Name a product today whose quality buyers cannot easily check, and say who knows more, the buyer or the seller. Teacher answers: (1) honest sellers, who must compete on price with cheaters, and the public's trust in shops in general; (2) accept examples such as used cars, supplements or home repairs, with the seller usually knowing more. Collect the answers; the quiz uses Sources 1 and 2.

5. Closure10-15 minutes

   Four problems in one town. Introduce Source 3, an invented scenario about a river town. Students read it on their own; it is used in the quiz and the homework.

   1Invented scenario, written for this page. Bayview is a fictional river town of about 6,000 households. Its council is studying four problems. All numbers are invented.

   2The river. A paper mill upstream makes 40,000 tons of paper a year. Its own cost is about $500 a ton, and it sells paper for $520 a ton. Warm wastewater from the mill has cut fish catches downstream, and Bayview's fishing guides and bait shops estimate their losses at $1.2 million a year. The mill does not pay for these losses.

   3The siren. Bayview has no tornado warning siren. A system that would reach every home costs $180,000. When a volunteer group asked for donations of $40 per household, 900 households gave. Several people said they would hear the siren whether they paid or not.

   4The water. One private company, Bayview Water, owns the town's only pipes. A second set of pipes would cost about $90 million, so no rival has ever entered. Bayview Water charges $9 per 1,000 gallons, while an engineer hired by the council estimates its full cost at $6 per 1,000 gallons. A typical household uses 6,000 gallons a month. Some residents point out that a nearby city's government-run water department has had long repair delays.

   5The batteries. Many residents buy used electric-bike batteries online. A battery near the end of its life looks the same as a good one. Bike shops report that about 1 in 5 used batteries they see fails within a month, while a few sellers offer a 90-day guarantee and a printed test report.

   Exit ticket: Choose one Bayview problem. Name the inefficiency, propose one possible government role, and name one cost or risk of that role.

   Teacher note on the sources: Sources 1 and 2 are quoted exactly from their printings; Mill's spelling "laisser-faire" and Accum's older spellings, such as "spiritous," are kept. Mill wrote as a nineteenth-century British reformer, and parts of his full chapter, which this excerpt leaves out, speak about uneducated people in terms many readers today find condescending. Source 3 is invented. The lesson takes no position on any current environmental, utility, consumer-protection or tax policy; students may argue for a government role, a private solution, or no action, and the rubrics score the reasoning.

Differentiation Strategies

Assessment Guidance

1. Question 1 of 20 · Multiple Choice

   In Source 1, paragraph 2, Mill describes things "the want of which is least felt where the need is greatest." What does this phrase mean?

   AThose who need them most seek them least BThese goods are wanted most by the people who already have them CDemand for these goods is always highest when they are scarce DBuyers judge these goods better than they judge ordinary goods

2. Question 2 of 20 · Multiple Choice

   According to Source 1, paragraph 3, what happened among gas and water companies even though competition was allowed?

   APrices fell because so many companies entered BNo real competition took place CThe government ran every company directly DCustomers moved freely between rival companies

3. Question 3 of 20 · Multiple Choice

   In paragraph 3, what two roles does Mill say government can take toward such a monopoly?

   ABreak it into many small rival companies, or ban it BLeave it alone, or ask its customers to boycott it CSet conditions on it, or keep its profits for the public DLower its taxes, or pay it to build more pipes

4. Question 4 of 20 · Multiple Choice

   Why, according to paragraph 4, would no one build lighthouses "from motives of personal interest"?

   ALighthouses cost far too much to build and repair BShips could not be charged each time they used the light CGovernments had made private lighthouses illegal DFew ships sailed near enough to the coast to need one

5. Question 5 of 20 · Multiple Choice

   Which modern service is most like Mill's lighthouse in paragraph 4?

   AA movie-streaming subscription BA toll bridge with a gate CA public storm-warning broadcast DA members-only gym in town

6. Question 6 of 20 · Multiple Choice

   Source 2, paragraph 2, says the practice was "increasing in degree as it has been found difficult of detection." What does this suggest about the food market?

   AFraud grows when buyers cannot detect it BHonest sellers were growing in number CDetection was easy, so fraud was rare DFood prices rose because detection was costly

7. Question 7 of 20 · Multiple Choice

   In paragraph 3, Accum says spurious articles were "made up so skilfully as to baffle the discrimination of the most experienced judges." Which market inefficiency does this describe?

   AA spillover cost on people outside the sale BA public good that no one can be charged for CA natural monopoly with one seller DHidden information about quality

8. Question 8 of 20 · Multiple Choice

   In paragraph 5, Accum says many dealers "of the highest respectability" sold poisonous articles that "they themselves considered as harmless." What does this add to the problem?

   AIt shows that only dishonest dealers ever sold bad food BIt shows that even sellers lacked information CIt shows that buyers knew more than the sellers did DIt shows that poisonous food was rare in London

9. Question 9 of 20 · Multiple Choice

   What remedy does Accum offer in the last paragraph of Source 2?

   AA new law requiring licenses for all grocers BA tax on all food imported into Britain CSimple chemical tests to detect the fraud DClosing the shops of all London brewers

10. Question 10 of 20 · Multiple Choice

    In paragraph 4 of Source 2, Accum separates two kinds of fake food. What is the difference?

    ASome cost buyers money; others also harm health BSome fakes are imported; others are made at home CSome fakes are legal; others are against the law DSome fakes are sold by grocers; others by brewers

11. Question 11 of 20 · Multiple Choice

    In Source 3, fishing losses of $1.2 million a year come from a mill that makes 40,000 tons of paper. About how much spillover cost does each ton create?

    A$20 a ton B$300 a ton C$530 a ton D$30 a ton

12. Question 12 of 20 · Multiple Choice

    Use Source 3. The mill sells paper for $520 a ton. Which statement best describes the river problem?

    AThe mill's price covers every cost, so nothing is wrong BThe mill loses money on every ton of paper it sells CEach ton sells below its full cost to society DFishing guides are free riders on the mill's profits

13. Question 13 of 20 · Multiple Choice

    In Source 3, what share of the siren's cost did the volunteer donations cover?

    A15% B20% C80% D36%

14. Question 14 of 20 · Multiple Choice

    Which explanation best fits why so few Bayview households paid for the siren?

    AEveryone would be warned, paid or not BBayview Water charged far too much for the siren CResidents could not tell whether a siren worked DThe siren would harm people outside the town

15. Question 15 of 20 · Multiple Choice

    Use Source 3. How much more does a typical household pay Bayview Water in a year than it would if the price equaled the engineer's estimated cost?

    A$18 B$54 C$648 D$216

16. Question 16 of 20 · Short Answer

    Use the battery paragraph of Source 3. Name the market inefficiency, generate two different possible explanations for a government role, and describe one private alternative already in the scenario.

    Show model answer

17. Question 17 of 20 · Short Answer

    For the river problem in Source 3, propose two possible government roles and explain how each would change the paper mill's behavior. Use numbers from the scenario in at least one.

    Show model answer

18. Question 18 of 20 · Short Answer

    For the siren in Source 3, calculate what each household would pay if the town covered the whole cost with an equal fee, and give one argument for and one argument against that role.

    Show model answer

19. Question 19 of 20 · Short Answer

    Use Source 1, paragraph 3, and the water paragraph of Source 3. What roles would Mill suggest for Bayview Water, and what point does the scenario raise against one of them?

    Show model answer

20. Question 20 of 20 · Short Answer

    Did London's food market in 1820 need a government role, or was Accum's own remedy enough? Use Sources 1 and 2 to support a position. Either position can earn full credit.

    Show model answer

These standards connect to D2.Eco.6.9-12: prerequisites to review first, parallel standards at the same level, and next steps that build on it.

Standard text: National Council for the Social Studies (NCSS), The College, Career, and Civic Life (C3) Framework for Social Studies State Standards: Guidance for Enhancing the Rigor of K-12 Civics, Economics, Geography, and History (Silver Spring, MD: NCSS, 2013). NCSS was not involved in the production of this lesson and does not endorse it.