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KOL495 | “Rothbard’s Revolutionary Contract Theory,” Sociedad de la Libertad Latam (Peru): Rothbard 100: A Legacy for Future Generations

by on August 12, 2026

Kinsella on Liberty Podcast: Episode 495.

Lecture, “Rothbard’s Revolutionary Contract Theory,” “Liberté Tribute to Rothbard on his Centenary: Rothbard 100: A Legacy for Future Generations,” Sociedad de la Libertad Latam (SdL) (a Latin American think tank based in Lima, Peru) and the 5th American Youth for Liberty Forum (Aug. 12, 2026, International Youth Day; via Youtube).  Attendees  included young people with a background in libertarian thought from Bolivia, Argentina, Peru, Chile, Uruguay, Paraguay, Colombia, Ecuador, Guatemala, and Mexico.

The speech was my English language talk interspersed with a Spanish translation by the moderator, Rosa María Apaza, Presidente SDL LATAM.

The speech I read from is below, along with other information about this event.

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KINSELLA’S WRITTEN REMARKS

Rothbard’s Revolutionary Contract Theory

Hello, this is Stephan Kinsella. I’m a lawyer and libertarian writer in Houston, Texas. I am speaking today on Rothbard’s revolutionary contract theory, the “Title-Transfer Theory of Contract.” I have only 15 minutes, which is not enough time to go into much detail on this theory. So what I’m going to do is hit some highlights and I will mention some further resources that you can consult if you’re interested in this topic after my talk.

I also want to mention that I’m doing this in an unusual way. It’s a 15-minute talk and I did not want to read a speech or write an article because I’ve written so much on this already. But the organizers wanted the written version ahead of time to translate it for you ahead of time. So I delivered this little talk earlier as a normal 15 minute speech, and then transcribed it so that it could be translated ahead of time. Today I’m going to follow my previous remarks as closely as possible so that if you’re listening in Spanish, it should closely match what I say in real time here today. It’s an experiment. I think it will work.

Further Resources

For more detail on what I say today in this brief talk, I would refer you to two long articles I wrote. One is a new article called “The Title Transfer Theory of Contract” coming out later this year and already on my website, www.StephanKinsella.com. And the other is a chapter in my book Legal Foundations of a Free Society, chapter 9, “A Libertarian Theory of Contract.”

I also gave a speech on this at the Property and Freedom Society in 2017. It’s on my podcast, Kinsella on Liberty, episode 225, “Reflections on the Theory of Contract.” This is on my website StephanKinsella.com. And I gave a long interview on the Tom Woods Show a few years ago. It’s episode 197 of my podcast. And back in 2011, I gave a Mises Academy course on Libertarian Legal Theory, lecture three, which is episode 20 of my podcast. These go into more detail about my topic today. Finally, episode 146 is an interview I did with Williamson Evers, who along with Rothbard helped develop the title-transfer theory of contract.

Why Rothbard’s Contract Theory Matters

Now Murray Rothbard is most important figure in modern libertarian theory. Rothbard has many important contributions to libertarianism. This one is somewhat overlooked and underappreciated because it’s kind of legalistic. But I think it’s one of his most important.

And in my podcast episode 493, I actually just spoke earlier this year in Porto, Portugal, at an event celebrating Rothbard. My topic was “Rothbard’s Greatest Hits.” I talked there about some of his greatest insights for libertarianism. And there are very many. And you may be familiar with many of those—his greatest works, The Ethics of Liberty and Man, Economy, and State, and many other works. And I mentioned very briefly his contract theory, which is my topic today.

The reason this is interesting to me—it seems like a boring topic to some people—is because concept of contracts is an integral aspect of commerce and life. Everyone’s familiar with contracts. You make a contract, you write a contract, etc.

The Confused State of Conventional Contract Theory

Rothbard’s title-transfer theory showed the right way to view contracts, by anchoring it to property rights. It shows the proper way to show why contracts should be enforceable. Contract theory in the law for centuries has been based upon a host of confused ideas. Basically no one is quite sure what is the basis of contracts, why contracts should be binding in the law.

Let’s take the Western legal systems: the common law in England and the United States and the English Commonwealth countries like Australia and Canada. And then in Europe and the civil law countries in South America and Latin America, which are all based upon the Roman law and civil codes. In all of these systems there’s a body of law called contract law, where people can make agreements which can be enforced in court. But nobody is quite sure why an agreement should be binding. Why should a promise to do or give something have a legal effect?

The Problem of Detrimental Reliance

Now the conventional theory is that the reason contracts should be binding or enforceable is that when you make a promise to someone, they rely upon it to their detriment—this is called “detrimental reliance”—which means they put themselves in a worse position in reliance on the promise. And because of that reliance, they would be harmed if you don’t perform.

Now it’s widely known that this argument is circular because the reliance has to be reasonable—but the problem is, it’s only reasonable if the law would enforce it. But the question is, should the law enforce it? So it’s widely recognized that the foundation for modern contract law is confused and circular. Conventional contract theory is hopelessly confused.

The best attempt to put contract theory on a sound footing is the consent theory of contract of libertarian law professor Randy Barnett. But it still views contracts as binding obligations.

Contractual Obligations

In addition to the flawed detrimental reliance justification for contract law, the other problem with mainstream contract law is that it views contracts as enforceable agreements—as binding promises. That is, as contractual promises that give rise to an enforceable obligation: an obligation to do what you promised to do. If you fail to do what you agreed to do, you are in “breach” of contract and the other party can take the breaching party to court.

Property Rights

This notion of obligations flowing from promises or contracts rests side by side with the property rights recognized in the law. Property rights are of two types: you can have property rights in material resources like your body. That’s called self-ownership. It’s not always called a property right in the law, but that’s really what it is. It’s the most primary kind of property right, a very special one. It’s your self-ownership or your ownership of your body.

When you say that murder is illegal, the reason it’s illegal is because it’s a violation of rights. It’s a violation of rights because it’s a violation of property rights. In other words, to commit aggression against someone’s body is to violate their rights, their property right in their body. So the reason murder is wrong and illegal is because you have a property right in your body.

And the reason that other crimes like theft are wrong is because we—we actors that own our bodies—we also have property rights in external resources.

So the core of the legal system is based upon different allocations of property rights. That is, owning your body, which implies that aggression is wrong; and owning other resources, which implies that theft is wrong, or trespass is wrong—using someone’s property without their consent.

Contractual Obligations and Contract Breach as a Rights Violation

But in addition to these property rights, the law also says there are also obligations, binding obligations which result from contracts, from making promises, and the law enforces these binding obligations. In other words, the law enforces both property rights, and contractual obligations.

So if two people make a contract or an agreement with each other, the legal system would say that this agreement gives rise to a binding obligation. It’s like a promise that you make that gives rise to an obligation to perform. And then what the law says is, and if you don’t perform what you promised to perform, if you don’t fulfill your obligations, then you have breached the contract. And when you breach a contract, then you’ve wronged someone and they can take you to court and sue you for breach of contract.

It’s as if the law say that there are two ways to violate someone’s rights: First, trespass or aggression, when you use or invade someone’s property without their consent; and second, when you fail to perform an enforceable obligation that comes from entering a contract, from making a promise.

Specific Performance versus Damages

Then what happens is the court is supposed to “enforce” the agreement between the two parties: between the promisor-obligor, and the promisee-obligee. If the promisee-obligee doesn’t receive the performance he expected from the promisor-obligor, then he can sue in court for breach of contract.

But if the judge says, you’ve breached the contract, what can he do? One thing he could to is order the promisor to perform—to do what he promised to do. If I promise to paint your house, let’s say, or sing at a concert for you, and you promise to pay me money for the service, then the contract would be that I, as the performer, as the singer or the painter, have entered into a binding contract which leads to an obligation to perform. And if I don’t do that, I’m in breach.

So then the judge could say, well, the remedy for this breach, for this violation of the rights of the promisee, is me to order you, to compel you, to perform. And that is called in the law “specific performance”—where the judge orders you to do what you promised you would do, under threat of contempt of court (jail, prison). The judge would say: hey, you promised you would paint the house, I’m ordering you to paint it, and if you don’t, you go to prison. You promised you would sing at this party, so I’m ordering you to sing.

But the courts don’t do that because it’s too complicated to order someone to do something, to monitor it, to make sure it is done right. And it also seems too much like involuntary servitude, like you’re a slave being ordered to do something. And not only that, it would be too costly for the court to monitor it the aftermath of its judgment. If the court orders you to paint or orders you to sing, how does the court know that you did a good job and that you’re not doing a bad job because you’re now unhappy and being forced to do something?

So what the courts do instead is they say, well it’s not practical to order specific performance, and it’s not really humane—so we’re going to order just a transfer of monetary “damages.” So, in the end, the result of breach of a contract is just the court awarding money damages, okay, because specific performance is almost never ordered.

Rothbard’s Property-Based Solution

Rothbard recognizes that all rights are property rights, and that making a promise does not violate any rights so should not result in any binding obligation. Contracts should just be viewed as a transfer of title by the owner. Hence, it is called the title-transfer theory of contract. The owner of a resource has the right and power to consent to people using his property; or to sell it or give it to them. Once you transfer ownership to someone, they become the new owner and they can enforce this property right under normal property law. It’s not because of an obligation, it’s just a transfer by the owner. There is no need to try to justify enforcing promises by the circular theory of detrimental reliance. And there is no need to talk of “breach” of contract or come up with money damages as a substitute for the impracticality of ordering specific performance.

For critics who say that if contracts are not binding obligations and under Rothbard’s title-transfer theory you cannot force someone to perform what they promised—well this is true even of the current system, because in that case, when there is breach of contract, the judge just transfers some money from one party to the other. The same can be done in a title-transfer theory and it need not be called “damages” for “breach” but just an agreed-to transfer of title to money.

Primacy of Property Rights over Contract

So there is no need to view the law as enforcing both property rights and contractual obligations. All rights are property rights and contracts flow from the power of owners to transfer their property to others.

In fact, some people put contracts and agreements before property rights. For example, social contract theory says that the state and its laws are based on fictitious “social contract” between people. The social agreement is seen as primary, and property rights flow from that, from the government or the state granting you your property rights.

By contrast, in the libertarian view, there are only property rights, and they don’t come from the state or any social contract. They’re natural. There’s the property right in your body, which is self-ownership, and then there’s the property right to own resources that you appropriate, that you homestead, or that you get from someone by contract. Those principles are the foundational principles of a just, private law system.

The most fundamental right is self-ownership, and this leads property rights in other resources: resources acquired by homesteading from the state of nature—or by getting it by contract from someone else.

When you own a resource it gives you the right to permit someone to use it—or to say no. The owner can say yes, or no. So if I invite you to my house, I’m letting you use my home temporarily. That’s a type of contract. It’s a very short contract. And I can kick you out and change my mind. I can loan you my car for a week, in which case you have temporary property rights.

I could also abandon the car and just cease owning it and someone else could own it.

And as the owner of the property, I could also transfer it to you by my consent. Not because it’s a promise, but because the owner has the ability to let someone use it, to abandon it, or to give it away entirely, by consent. It’s an exercise of power by the owner. It’s what comes from having a property right in a thing.

So that’s what contracts are. Contracts are just the exercise of dominion over a resource that’s owned. It’s the exercise of a property right by the owner, and that’s what Rothbard recognized. This is how we should view contracts: as title-transfers, not as binding promises, not as enforceable “obligations” “to do” things.

Contracts as Networks of Title Transfers

And what’s brilliant about this, is that it reformulates the entire theory of contracts without the legal positivist approach that has been done so far by viewing it as binding promises. Instead a contract is just viewed as a network of title transfers. And Rothbard, an economist, and Evers, a historian, are not legal theorists, yet they broke the log jam that has plagued conventional contract theory for centuries.

Examples

So if I purchase something from you, I give you title to my money in exchange for you giving me title to your goods, right? Or in an employment contract, a service contract, I’m giving you title to my money conditioned on you performing an action, right? So that’s a one-way title transfer. There’s only one thing being transferred, that is my title to the money in exchange for you doing something. If it’s a gift, I could say I give you something. Those are both one-way title transfers.

And the beauty of this is it avoids the entire notion of binding promises and viewing rights as obligations. You don’t have the problem of specific enforcement because basically if you own a resource you can transfer it and that’s what the law would enforce. It would enforce your transfer of the resource.

You would get the same result as in modern contract theory because they don’t order the promisor to perform his promise. They only order the transfer of money payment, which they call damages. Well in the Rothbard theory, you would have the same thing. You would have a penalty clause in the contract saying if I don’t perform and you need me to perform, like paint the house or perform at the party, then I have to transfer some money damages back to you. So that would be two title transfers. One would be my conditional transfer of money and payment if you perform, and then the performer’s transfer of damages to me if they don’t perform.

So that’s the best way to look at contracts, and Rothbard’s property-based theory unlocks that and is the way to go forward.

And I’m happy to answer any questions if we have time in the follow-up. Thank you very much.

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Kinsella 2009Stephan Kinsella is a libertarian writer and retired patent attorney in Houston, Texas. He has published widely on various areas of libertarian legal theory and on legal topics such as intellectual property law and international law. His publications include Legal Foundations of a Free Society (Papinian Press, 2023), Against Intellectual Property (Mises Institute, 2008), International Investment, Political Risk, and Dispute Resolution: A Practitioner’s Guide (Oxford, 2020), and The Universal Principles of Liberty (2025).

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