Transaction costs are the resources consumed in making an exchange happen: finding a counterparty, agreeing on terms, and ensuring that the agreement is kept. Property rights are the socially recognized entitlements to use resources and to exclude others from using them.

The two concepts anchor the new institutional economics. If transacting were costless, bargaining would resolve every conflict over resource use and the organization of economic activity would not matter. Because transacting is never costless, the rules that define, measure, and enforce rights become a central determinant of economic performance — an insight that recent arguments extend to blockchains.

The economics of transaction costs

Dahlman's taxonomy

Building on Ronald Coase's treatment of social cost, Carl Dahlman argued that externalities persist only because transacting is costly: if exchange were costless, potential Pareto improvements would be realized by bargaining among self-interested agents — in the theory of externalities, "transaction costs are the root of all evil." His article supplies the canonical trichotomy, organized by phase of exchange:

Dahlman then argued that the three classes reduce to one — resource losses due to imperfect information — since each exists only because agents lack knowledge of trading opportunities, of counterparties' willingness to trade, or of whether performance will occur. On this view transaction costs are analytically like transport costs: if bargaining an externality away costs more than it gains, the observed outcome is already a constrained optimum, and market failure cannot be demonstrated by conceptual analysis alone.

North: institutions and economic performance

Douglass North defined institutions as "the rules of the game" — humanly devised constraints that structure incentives in political, social, and economic exchange; together with the technology employed, they determine the costs of transacting and producing, and hence economic performance. North cited measurements putting the transaction sector of the American economy at 45 percent of GNP in 1970. Four variables govern the cost of transacting: the cost of measuring the valuable attributes of goods and of agent performance; the size of the market, meaning personal versus impersonal exchange; enforcement, where the difficulty of creating a relatively impartial judicial system has been a critical stumbling block in economic development; and ideology, which matters precisely because measurement and enforcement are costly. North also distinguished institutions (rules) from organizations (players), which invest in whatever skills the institutional incentive matrix rewards — if the highest payoffs are to piracy, organizations become better pirates.

Williamson: governance of contractual relations

Oliver Williamson described the new institutional economics as "preoccupied with the origins, incidence, and ramifications of transaction costs": were those costs negligible, the organization of economic activity would be irrelevant, since any advantage of one mode would be eliminated by costless contracting. He characterized transactions along three dimensions — uncertainty, frequency, and the degree of durable transaction-specific investment — with opportunism, "self-interest seeking with guile," central to the problem. A governance structure is the institutional framework within which the integrity of a transaction is decided, and structures should be matched to transactions in a discriminating way: market governance for non-specific transactions, trilateral governance with third-party arbitration for occasional idiosyncratic ones, and bilateral relational contracting or unified governance (vertical integration) for recurring idiosyncratic ones.

The property-rights paradigm

Armen Alchian and Harold Demsetz recast ownership itself: what is owned are not resources but socially recognized rights to use resources — a partitionable, always circumscribed bundle, with the strength of ownership given by the probability that the owner's decision about a use actually determines that use. Communal rights that lack the power to exclude invite free riding and overuse — depleted game stocks, polluted waterways, congested freeways — because users ignore the full costs of their actions. When transacting is costless, the identity of private owners does not alter how resources are used; with positive transaction costs, reassigning ownership has allocative effects, and the most important consequence of institutional rearrangements such as the enclosure movement may have been their impact on the cost of transacting itself. Rights structures also evolve endogenously: when technology or demand makes a communally held resource more valuable, societies tend to convert it toward exclusive, transferable private rights. The view of ownership as an adjustable bundle underpins later allocation mechanisms such as Harberger taxes.

Refinements: bargaining power and information gathering

The formal property-rights (incomplete-contracting) approach of Grossman, Hart, and Moore has been refined in ways that reconnect it to transaction costs. Patrick Schmitz showed that replacing the standard 50:50 division of surplus with generalized Nash bargaining leaves the suboptimality of joint ownership intact for any distribution of ex-post bargaining power, but overturns another staple result: it can be optimal to assign ownership to the party whose investment is less productive when that party's bargaining power is relatively small, so a strong bargaining position can compensate for weak bargaining power. Schmitz also allowed a party to invest in gathering private information about its default options before deciding whether to collaborate; negotiations under the resulting information asymmetry produce inefficient rent seeking — a genuine transaction cost arising inside the property-rights framework — which can make it optimal for the non-investing party to own the asset.

Blockchains and the crypto-Coase argument

Prateek Goorha analyses blockchains through mechanism design: an effectively instantiated blockchain defines, largely inviolably, an allowable action space for participants and a mapping from actions to outcomes — a class of implementable mechanisms. He cautions against the "super-ledger" reading: blockchains do not inherently make truth more likely, they are not universally public, and they are not synonymous with immutability, which depends on the verification protocol. Instead, they constitute an incipient third form of economic organization between markets and planning — a "cryptographic stigmergy" in which self-organization replaces some of the need for top-down planning and for discovering market prices. His crypto-Coase theorem states that in an environment of high frictional costs imposed by market orderings on one side and by planning on the other, economic activity moves toward this third form, where contextual information and identity are most closely matched in a verifiable manner. Identity, comprising a right to use and a right to exclude, is "possibly the quintessential property right," and the right to exclude is a key strength of the blockchain. He adds a practical caveat: with pervasive transaction costs, the initial distribution of assets will almost always matter.

Relevance to Caper

Transaction-cost economics explains where DAOs fit: a DAO is, in Williamson's sense, a governance structure, viable wherever on-chain coordination beats firm hierarchies and spot markets on the costs of transacting. On Caper, fundraising through perpetual bonding-curve markets substitutes posted algorithmic prices for bilaterally negotiated terms, compressing search and bargaining costs, while token-holder governance with automatic on-chain execution shifts enforcement from a judicial problem to a computational one — an approved proposal acts on the treasury directly rather than relying on a counterparty's future performance. The underlying Radix platform pushes in the same direction by treating tokens and permissions as platform-native primitives and making transactions human-readable before signing, reducing the measurement and verification costs that North placed at the heart of exchange.

References

1. Carl J. Dahlman (1979). The Problem of Externality. Journal of Law and Economics, Vol. 22, No. 1, pp. 141–162.
2. Douglass C. North (1992). Transaction Costs, Institutions, and Economic Performance. ICEG Occasional Papers No. 30, ICS Press.
3. Oliver E. Williamson (1979). Transaction-Cost Economics: The Governance of Contractual Relations. Journal of Law and Economics, Vol. 22, No. 2, pp. 233–261.
4. Armen A. Alchian and Harold Demsetz (1973). The Property Right Paradigm. The Journal of Economic History, Vol. 33, No. 1, pp. 16–27.
5. Patrick W. Schmitz (2013). Bargaining position, bargaining power, and the property rights approach. Economics Letters, Vol. 119, No. 1, pp. 28–31.
6. Patrick W. Schmitz (2006). Information Gathering, Transaction Costs, and the Property Rights Approach. American Economic Review, Vol. 96, No. 1, pp. 422–434.
7. Prateek Goorha (2018). Blockchains as Implementable Mechanisms: Crypto-Ricardian Rent and a Crypto-Coase Theorem. The Journal of the British Blockchain Association, Vol. 1, Issue 2.