A market is not what is left when the rules are gone. It is one of the things the rules build.

The first fifteen chapters argu e that markets are a miracle, and they do not stammer. Prices coordinate. Profit and loss discipline. Competition reallocates. Entry and exit keep everyone honest. None of that was wrong. The case for markets is strong, and should be taken seriously.

In the previous chapter, we began our critique of markets by raising questions about morality versus efficiency. All things considered, markets remain among the most effective engines for human flourishing we have, but that does not mean they do not deserve serious critique. We have now offered two such critiques: elasticity shows us that sometimes people simply do not have many options; and just because something is efficient, that does not make it moral.

We push further in our critique in this chapter.

The case for markets rests on a foundation of assumptions that we have yet to examine. The greatest and first of these is simply this: A market cannot scale until people know what can be owned, what can be sold, what counts as fraud, who can be kept out, which promises are enforceable, and who answers for harm. Without these, markets may exist, but they cannot easily become secure, accessible, scalable, and productive.

This chapter does not argue that markets are bad; it argues that markets are built.

The Christian Roots—and Moral Limits—of Markets

Markets, including relatively free markets, are much older than modern liberalism. They flourished at various times and places long before the nineteenth century. To claim that markets are a product of the 1800s is a misunderstanding. It is equally a misunderstanding to suggest that markets have always existed in the same way they do now.

What changed in the 1800s was not the invention of markets, but their unprecedented expansion.

Markets were able to flourish in part because of liberal political ideals, constitutional government, secure property rights, expanding commerce, industrial technology, and improved legal institutions. As an easy mental anchor, recall that this expansion happened around the same time as the political and industrial revolutions that reshaped Europe and North America, amid a growing emphasis on universal human dignity, legal equality, and personal freedom, and around the same time as the twin revolutions of France and The United States.

Modern markets, then, emerged alongside a broader liberal order that increasingly emphasized universal human dignity, legal equality, personal freedom, and limits on arbitrary power. The market was not the entire package. It was one expression of a larger conviction that ordinary people, not just rulers, could be trusted to run their own lives.

As these forces came together, markets scaled across national and global networks, producing an extraordinary surge in productivity, prosperity, and human population.

What was the role of Christian thought in this expansion?

Perhaps no one has argued more forcefully or memorably about the connections between Christian thought and markets than Max Weber. Weber argued that Protestant ideas about vocation, discipline, and worldly conduct helped create a culture compatible with capitalism.

Other scholars have emphasized different connections. Harold Berman and Brian Tierney have argued that canon law, church–state pluralism, and Christian natural-law reasoning helped develop legal traditions of contract, property, corporate association, and limits on rulers. Joseph Schumpeter and Raymond de Roover highlighted the economic reasoning of medieval scholastics, while Rodney Stark emphasized Christian ideas about reason, human dignity, and vocation as cultural supports for commercial society.

These scholars are not making the same argument, but together they identify several possible connections between Christianity and the development of modern markets. There is a serious scholarly tradition connecting Christian ideals and institutions with markets, though it is by no means the scholarly consensus.

The Christian belief that every person possesses inherent dignity—that all people are, in principle, equal in ultimate worth before God—supplied moral resources that later liberal societies drew on heavily. That belief could support markets by treating ordinary people as responsible agents capable of owning property, making contracts, and directing their own lives.

Lest we adopt an overly simplistic account of the history, let us avoid two possible errors. First, we should not conclude that Christianity is wholly unrelated to the prosperity that followed in the 1800s. There is a serious scholarly tradition linking Christian ideals to markets, and I believe that account.

Second, we should not conclude that Christianity was the primary or sole undergirding requirement for prosperous markets. That would center Christianity to the exclusion of the many other contributions from other cultures, religions, and thinkers that deserve gratitude.

If Christianity is not the whole explanation, what is? A more defensible account, and a more sophisticated one, is aconfluence: Christian moral ideas, natural-rights theory, constitutional government, religious pluralism, the rise of empirical science, expanding commerce and cities, industrial technology, and hard-won resistance to arbitrary authority all ran together at the right time and in the right places.

Christianity’s relationship with markets is also complicated because it is both foundational to, and often critical of, markets. The same teachings about personal dignity and agency that can support voluntary exchange also challenge the notion that markets can provide meaning, protect dignity, or determine the value of human beings on their own.

From the preaching of Basil the Great and John Chrysostom, who condemned the hoarding of wealth while others lacked necessities, to John Wesley’s instruction to “gain all you can, save all you can, and give all you can,” Christian teachers have often treated wealth as morally dangerous when detached from responsibility. Pope Leo XIII later defended private property and economic initiative while condemning an industrial order that reduced workers to instruments of profit. Martin Luther King Jr. likewise argued that an economy should be judged not only by how much wealth it produces, but by whether it serves human dignity and meets the needs of the poor.

Leo XIII’sRerum Novarumand King’s “Notes on American Capitalism” illustrate this tradition: both accepted the importance of economic activity while insisting that markets must remain subordinate to human dignity, social responsibility, and the needs of the vulnerable.

Restorationist Economic Thought

Latter-day Saint thought offers a similar combination of economic freedom and moral restraint. Joseph Smith’s revelations affirmed work, agency, stewardship, and productive enterprise, but they also commanded the Saints to consecrate their resources and ensure that the poor were cared for.

The early Latter-day Saints experimented with what they called theUnited Orderor thelaw of consecration. This was not modern socialism. It did not abolish choice or place all economic decisions in the hands of the state. Instead, individuals consecrated their property to God, received stewardship over what they could productively manage, and accepted responsibility for the welfare of the community.

Note that the institutional church, The Church of Jesus Christ of Latter-day Saints, has not issued any formal statements on economic philosophy. Rather, the statements of prominent church leaders contains a consistent theme of personal responsibility, community responsibility, and shared prosperity. In other words, restorationist thought does not ask us to choose between prosperity and care for the poor. It asks what prosperity is for.

The Bourgeois Virtues

Deirdre McCloskey offers another way to understand the moral foundations of markets. In her account, markets do not function through incentives and institutions alone. They also require habits of honesty, trustworthiness, courage, prudence, and fairness—what she calls the bourgeois virtues.

A merchant who keeps promises, a lender who tells the truth, an employer who pays what was agreed, and a customer who does not cheat are not merely being nice. They are making exchange possible.

Markets can also reinforce these virtues. Repeated exchange gives people reasons to develop a reputation for honesty and reliability. Competition punishes some forms of deception, while long-term relationships reward trustworthiness. Markets therefore need integrity before they can function well, but they can also give people practical reasons to practice integrity.

This does not mean markets automatically make people virtuous. They can reward greed, manipulation, and predation when rules are weak or moral obligations are absent. McCloskey’s point is more modest and more useful: commercial society depends on virtues that neither prices nor laws can fully manufacture.

A Larger Confluence

Christianity is not a sufficient explanation for markets, and prosperous markets are not sufficient for a vibrant Christianity. Christian ideas helped provide some of the moral and institutional foundations within which modern markets developed, but Christianity also supplied some of their most persistent critics.

The broader historical evidence suggests that capitalism arose from the interaction of religious beliefs, legal institutions, political structures, technology, and commercial practice. Christian thought played a role, as did Islamic, Jewish, and Enlightenment thought. So did French and American ideals about equality and political liberty, the rise of empirical science, and the legal and political stability that made long-term investment and cooperation possible.

To restate, economic liberalism—the case for open markets, secure property, and voluntary exchange—did not spring from a single cause. It emerged alongside a broader liberal order concerned with human dignity, legal equality, political liberty, and limits on arbitrary power.

The market was one expression of a larger conviction that ordinary people, not just rulers, could be trusted to run their own lives.

Aproperty rightis best understood as abundle— the right to use a resource, sell it, improve it, exclude others from it, transfer it, and seek compensation when it is damaged. Without a clear bundle, exchange turns fragile: investment becomes a gamble, bargaining becomes confused, and responsibility for harm becomes impossible to pin down. They answer questions that markets cannot answer by themselves:

Who may use this land? Who may sell it? Who may inherit it? Who may enter it? Who is responsible if it causes harm?

Property rights are therefore not merely about ownership. They are about legal recognition, authority, exclusion, transfer, and responsibility.

But a right you cannot enforce is only a wish with your name on it. If a court will not stand behind yourcontract, the contract is decoration. If the rules change unpredictably, people cannot reliably invest; they are only betting on political outcomes. If fraud is tolerated, buyers stop trusting sellers, and trade thins out. This is whyrule of lawis so important: the background promise that the rules are known in advance and applied to everyone the same way. When we say "rule of law" we also meancourts,liabilityrules, and enforcement like police, all of which help decide who must answer when one person's actions damage another.

Here are some of the institutions the earlier market model has quietly been assuming the whole time.

As we continue through this chapter, there is another idea that is worth clarifying at this point.A bad outcome can have two possible authors. Maybe themarketfailed. Or maybe therulesfailed — and the repair is a clearer property right, a working court, an honest registry, not necessarily more government. If you want markets to function, sometimes the best thing to do is look beyond the market to the rules underneath.

Can markets fail? Yes. There are occasions, as we will see in the subsequent chapters, when markets, left to themselves, do not create optimal outcomes. They tend to be cases in which the assumptions we make about markets do not hold: for example, competitive markets might fail when a single market player has significant market power.

But we are speaking here of another class of failure that also deserves attention: institutional failure. This is when the institutional rules upon which markets rely are not enforced or protected sufficiently for markets to flourish.

Good rules make markets flourish. What do bad rules do?

The economists Daron Acemoglu, Simon Johnson, and James Robinson draw a line between two kinds of rules.Inclusive institutionsspread property rights, impartial enforcement, and open entry across a whole society.Extractive institutionsconcentrate those same things in the hands of insiders — protected monopolies, captured courts, ownership reserved for the connected.

The unsettling part is that a market on extractive institutions stillruns. Prices clear. Trades happen. On the surface it looks like any other market. But it is quietly transmitting the rigging beneath it — funneling value toward whoever wrote the rules — in prices that read as perfectly neutral. As a simple explanation, think of it this way: institutions always work. The question is who they workfor.And typically, the answer is "institutions work for those who built them."

In other words, corruption.

Across countries, higher corruption travels with lower income, lower investment, weaker firm growth, and slower long-run development. An older theory held that corruption might "grease the wheels," a bribe helping a business slip past a slow bureaucracy. Most development economists now think the opposite is closer to the truth: corruptionsandsthe wheels. It makes rules unpredictable, raisestransaction costs, and rewards connections over value. Worse, it is self-feeding: an official who can demand a bribe to remove an obstacle has every reason to invent the obstacle in the first place.

Read that pattern carefully. It is acorrelation, not a clean proof that corruption alone causes poverty. Poor countries may have weak institutions partlybecausethey are poor, and both corruption and poverty may trace back to deeper causes — conflict, instability, a broken rule of law. But the association is large, persistent, and consistent with a clear mechanism, and the direction of the modern consensus is not in doubt: corruption is a drag, not a lubricant.

So the useful question is not the hopeless "how do we make people honest?" It is institutional: how do we make corruptionharder to hide, easier to detect, and costlier to attempt? Open records and transparent budgets, competitive public contracting, independent audits, a free press, impartial courts. But transparency alone is not enough — and this is the part people skip. Information only bites when someone can act on it and a court can impose a real cost. A leaked ledger changes nothing if no one is empowered to prosecute. That is the same lesson as Concept 2 wearing new clothes: a rule is only as strong as the enforcement behind it.

The deepest point is what corruption does to competition itself. When rules are for sale, people stop competing to create value and start competing for influence — for licenses, contracts, and privileges. Economists call thatrent-seeking, and it is the mirror image of the market's best promise. Strong institutions tilt the field back, so that reward flows toward serving people rather than capturing rules.

Corruption is just one example of something calledtransaction costs.

When you buy a new car, you pay the purchase price; but you also spend time searching listings, trying out the car, negotiating, and arranging financing. When you hire a babysitter, you pay the hourly rate; but you also have to find a reliable and trustworthy sitter, negotiate pay, and communicate expectations. When you buy a house, you literally hire someone to handle many transactions costs for you: a realtor who finds a seller for you, helps you with inspections, appraisals, title searches, attorneys, paperwork, and months of negotiation. These are all examples of transaction costs: the tangential costs that are not the direct price, but the affiliated activities required for purchase.

Mike Munger has noted that some prominent companies are not selling what you think; they are simply selling lower transaction costs. Consider Uber. While taxi services already exist, Uber makes it dramatically easier to find a driver, compare prices, request a ride, track its arrival, pay electronically, and evaluate the driver afterward. The ride is the obvious product, but much of Uber’s value comes from reducing the hassle and uncertainty of arranging it.

Corruption is when institutions extract wealth for the benefit of those who have captured the institution. Effective institutions do the reverse: they pass along wealth via lowered transaction costs.

That is the intuition behind theCoase theorem: when rights are clear andtransaction costsare low, private bargaining can sometimes move a resource to its best use — even when one person's activity spills onto another. In the next couple of chapters, we'll talk about spillover effects, or externalities: when your actions can affect others, or their actions can affect you. Remember this: sometimes, if you can eliminate transactions costs, you can allow people to solve their own problems.

Consider two neighbors. One likes to play loud music. The other wants peace and quiet. One solution is for the government to institute a noise ordinance. Another one, however, is for the two neighbors to talk out the solution to the problem: "what if I pay you $20 to limit the music to before 8 pm?" Both people are made better off, and there is no need for intervention. Coase says that this is sometimes possible, so long as transaction costs are low.

The word doing all the work issometimes. Two neighbors arguing over one tree branch can strike a deal by dinner: the parties are few, the harm is easy to see, the right can be clarified, and a handshake can be enforced. But if we scale it up, things can become far more difficult very quickly. A thousand drivers pollute one city's air. Who negotiates with whom? Who measures which car caused whose asthma? Who stops the one holdout who refuses to sign? The bargain that was trivial for the tree branch becomes impossible for the city — not because the harm is smaller, but because thetransaction costsexploded.

Another limitation of markets is that they are effective with certain classes of goods, and less effective with others. Economists sort goods with two questions. First,excludability: can non-payers be kept out? A theater checks tickets; a login gates a stream; a grocer keeps the sandwich behind the counter. But some goods are not easy to exclude: groundwater, national defense, or fireworks.

Second,rivalry: does one person's use subtract from another's? A sandwich is rival — if you eat it, I can't. A national-defense system is non-rival — protecting you doesn't use up protection for me.

Cross those two questions and you get four kinds of good. This is one of the highest-yield tools in the unit, so it is worth your time to learn to place a good on it quickly.

The reason the grid matters is that each cell comes with its own built-in trouble, and therefore its own likely fix. Name the problem and you are already pointing at the tool.

In the next chapter, we will detail potential responses to various goods. For now, your job is to understand what they are and how they are defined. I introduce this topic in this chapter for a reason, however:for a common resource, the tool may be tocreatea market where none existed. Give water a clear, tradable right and a price and the person who values it most can buy it from the person who values it least — turning invisible scarcity into a signal. That only works when the right is clear, use can be measured, and third parties are protected; but it shows that "another tool" doesn't always mean "less market."

Contemporary American culture really loves to talk about our rights. Just as important, are the rights we do not have. Markets need peopleto nothave certain rights. A functioning order requires limits on the claims strangers can press against your legitimate use of your own things.

Traditionally, wedding ceremonies have been portrayed as asking the guests to "speak now, or forever hold your peace" if anyone objects to the wedding. This invitaion to object is an excellent example of a right that you need to not have. Even in wedding ceremonies, objection does not hand any objector the power to stop the marriage merely because they disapprove. You may dislike the match. You do not thereby acquire a veto.

To see why this is so important, consider a world in which everyone gets to vote on every decision you make. You want to paint your nails? A community council gets to vote on it. You want to let your lawn grow another day? You have to get it approved. This isn't just an issue of efficiency. It isn't that the town council will take up too much time to decide. It's thatit's simply none of their business.

Ownership works the same way. An owner may generally use property without collecting permission from everyone who dislikes the choice. The neighbor who hates your paint color, the resident who preferred the empty lot, the group that wishes the old building had stayed — each may object, and none of that objection, by itself, becomes a right to prevent.

In other words, you have every right to say"I dislike this project"but you have no right to interpret that as"I am entitled to prevent this project."This is a jurisdictional rule: you get to decide what you do in your own sphere: yourself, your family, and your property.

Are there cases when what you do affects others? Yes. We will devote the next two chapters to considering cases of externalities for that exact reason. But the key insight here is somewhat different: a market cannot exist unless we all agree to define "harm" pretty narrowly. That means that I let my neighbor paint her house, and she lets me add a ball room to my basement.

If this seems silly, it's not. In fact, it may be among the most important contemporary economic fights that you can find on the news today: housing crises. The short version is this: the laws of supply and demand apply to housing stock. So, if there are very high housing prices, the simple way to fix it is to simply build more housing—and, importantly, at higher density.

But those who own homes tend not to want more people in their neighborhood: increased traffic, new neighbors, and projections of potential new riff-raff all rear their heads in zoning meetings throughout the country, and many new housing development projects die. This is known by the term NIMBYism: "Not In My BackYard!" The same is true of historic preservation: a 1930s building that is an eyesore needs to be demolished, but a single community member can hold up the project if they make a strong appeal to the city council on the basis of historical value.

Again, some objections are attempts to convert a preference into authority over someone else's land. Others are something entirely different: genuine external harms. Pollution, unsafe construction, fraud, unreasonable noise that spills past the property line — these impose real, uncompensated costs on others, and society has every reason to step in. Ownership was never a license to do anything.

So the institutional question is not "may owners do as they please?" It is sharper:what counts as an overriding reason to interfere with an owner's use?Good institutions work hard to tell a genuine harm apart from a dressed-up veto — because the first deserves a remedy and the second, if honored, quietly dismantles everyone's ability to use anything. And notice where that question points. "What is a real harm, and who should bear its cost?" is the doorway into externalities, the subject waiting in Chapters 18 and 19. Preferences, objections, and interests are the ordinary stuff of a free society. The discipline is in refusing to let them harden, unearned, into rights.