The Coase Third Theorem compares transaction costs of markets, firms, and governments to determine the optimal institutional arrangement. It guides organizational design and public policy, showing that the best institution minimizes total governance costs
The Coase Third Theorem is the most comprehensive and practical component of Coasean economics, focusing on the comparative costs of different institutional arrangements for governing economic activity. It states that when transaction costs are positive, the optimal institutional arrangement is the one that minimizes the total costs of establishing and enforcing property rights, negotiating agreements, and resolving disputes. This theorem provides a framework for choosing between markets, firms, and governments as alternative ways to organize economic activity.
The Coase First and Second Theorems provide important insights into the relationship between property rights, transaction costs, and economic efficiency. However, they do not address the question of how to choose between different institutional arrangements for governing economic activity. In the real world, economic activity can be organized through markets, firms, governments, or a variety of other institutional forms, each with its own costs and benefits.
The Coase Third Theorem emerged to address this question, showing that the optimal institutional arrangement depends on the comparative transaction costs of each alternative. This theorem has become a cornerstone of institutional economics, providing a framework for understanding why some economic activities are organized through markets, some through firms, and some through governments.
Coase First Theorem: Assumes zero transaction costs and states that the initial assignment of property rights does not affect efficiency. The Coase Third Theorem relaxes this assumption and focuses on the choice between different institutional arrangements when transaction costs are positive.
Coase Second Theorem: States that when transaction costs are positive, the initial assignment of property rights affects efficiency. The Coase Third Theorem extends this by showing that the choice of institutional arrangement also affects efficiency.
Transaction cost theory: Focuses on the costs of using the market. The Coase Third Theorem extends transaction cost theory by comparing the costs of using the market with the costs of using firms and governments.
The Coase Third Theorem was implicit in Ronald Coase's 1937 paper "The Nature of the Firm," where he compared the transaction costs of using the market with the costs of organizing activity within a firm to explain the boundaries of the firm. He further developed the idea in his 1960 paper "The Problem of Social Cost," where he compared the costs of different institutional arrangements for addressing externalities.
The theorem was later formalized and developed by other scholars, including Oliver Williamson, who extended Coase's analysis of the firm to develop transaction cost economics, and Douglas North, who applied the theorem to the study of economic history and institutional change. Williamson's work on transaction cost economics has been particularly influential, showing how the characteristics of transactions (asset specificity, uncertainty, and frequency) determine the optimal institutional arrangement.
Current research focuses on applying the Coase Third Theorem to new areas, such as digital platforms, blockchain technology, and global governance. There is also growing interest in how the theorem can be used to design more efficient institutions for addressing global challenges such as climate change and pandemics.
This article explains the theoretical foundations of the Coase Third Theorem, outlines its core principles and concepts, analyzes real-world case studies of institutional choice, discusses the implications of the theorem for business and policy, and explores future directions for research.
Core objectives:Explain the core concepts and historical development of the Coase Third Theorem
Describe the comparative transaction costs of markets, firms, and governments
Demonstrate how the theorem applies to institutional choice in different contexts
Identify the key factors that determine the optimal institutional arrangement
Highlight the implications of the theorem for corporate strategy, regulatory reform, and public policy
The Coase Third Theorem has its roots in Ronald Coase's 1937 paper "The Nature of the Firm," where he asked the fundamental question: why do firms exist? Coase argued that firms exist because there are costs to using the market, which he called transaction costs. These costs include the costs of searching for trading partners, negotiating contracts, and enforcing agreements. Coase showed that firms emerge when the transaction costs of using the market are higher than the costs of organizing the same activity within the firm.
In "The Problem of Social Cost" (1960), Coase extended this analysis to externalities, showing that the choice between different institutional arrangements for addressing externalities (such as private negotiation, liability rules, and government regulation) depends on the comparative transaction costs of each alternative. He argued that all institutional arrangements have costs, and the optimal arrangement is the one that minimizes the total costs of addressing the externality.
Since Coase's foundational work, the Coase Third Theorem has been extended and developed by many other scholars. Oliver Williamson's transaction cost economics has provided a more detailed framework for analyzing the comparative costs of markets and firms, showing how the characteristics of transactions determine the optimal institutional arrangement. Douglas North has applied the theorem to economic history, showing how the evolution of institutions has shaped the economic development of countries over time.
Positive transaction costs: All institutional arrangements have positive transaction costs, and these costs vary depending on the characteristics of the transaction and the institutional arrangement.
Rational behavior: Individuals and organizations act rationally and seek to minimize the costs of governing economic activity.
Institutional diversity: There are multiple institutional arrangements available for governing economic activity, including markets, firms, governments, and hybrid forms such as contracts and strategic alliances.
The optimal institutional arrangement for governing economic activity is the one that minimizes the total transaction costs
The comparative transaction costs of different institutional arrangements depend on the characteristics of the transaction
Markets are efficient for transactions with low asset specificity, low uncertainty, and low frequency
Firms are efficient for transactions with high asset specificity, high uncertainty, and high frequency
Governments are efficient for transactions involving public goods, large numbers of parties, or significant externalities
Markets: Markets use the price mechanism to coordinate economic activity. The transaction costs of markets include search and information costs, bargaining and decision costs, and monitoring and enforcement costs. Markets are efficient when transaction costs are low and property rights are clearly defined.
Firms: Firms use hierarchical authority to coordinate economic activity. The transaction costs of firms include the costs of managing employees, monitoring performance, and coordinating different parts of the organization. Firms are efficient when the transaction costs of using the market are high.
Governments: Governments use coercive authority to coordinate economic activity. The transaction costs of governments include the costs of legislation, regulation, enforcement, and bureaucracy. Governments are efficient for providing public goods and addressing market failures that cannot be resolved through markets or firms.
Asset specificity: The degree to which an investment is specialized to a particular transaction and has little value outside of that transaction. High asset specificity increases the transaction costs of using the market, as it creates the risk of hold-up, making firms more efficient.
Uncertainty: The degree to which the future environment is unpredictable. High uncertainty increases the transaction costs of writing complete contracts, making firms more efficient, as they can adapt to changing conditions more easily than markets.
Frequency: How often a transaction occurs. High frequency makes it worthwhile to invest in specialized governance structures, such as firms, to manage the transaction.
Corporate strategy and organizational design
The boundaries of the firm and vertical integration
Regulatory reform and public policy
The provision of public goods and services
International trade and global governance
Institutional reform and economic development
It focuses primarily on efficiency considerations, neglecting distributional issues such as fairness and equity
It assumes that transaction costs can be accurately measured and compared, which may not always be the case
It does not fully account for the role of power and politics in institutional choice
It assumes that institutions can be changed easily, but in reality, institutions are often persistent and difficult to reform
It does not account for non-economic values, such as cultural and social values, which can influence institutional choice
High asset specificity: Apple's products require highly specialized components and software that are tailored to its specific needs. These investments have little value outside of Apple's ecosystem, creating a significant risk of hold-up if they were outsourced to external suppliers.
High uncertainty: The technology industry is characterized by rapid change and high uncertainty. Apple needs to be able to adapt quickly to changing market conditions and customer needs, which is easier to do within a firm than through market contracts.
High frequency: Apple produces millions of products every year, and the transactions involved in designing, manufacturing, and selling these products occur very frequently. This makes it worthwhile for Apple to invest in the specialized governance structure of a firm to manage these transactions.
It has allowed Apple to create products with a seamless user experience that are difficult for competitors to replicate
It has given Apple greater control over its supply chain, reducing the risk of disruptions and improving efficiency
It has enabled Apple to capture more of the value from its products, leading to high profit margins and strong financial performance
The Coase Third Theorem provides a powerful framework for determining the boundaries of the firm
Firms are efficient for transactions with high asset specificity, high uncertainty, and high frequency
Vertical integration can reduce transaction costs and improve coordination when market transaction costs are high
Apple's success demonstrates that a high degree of vertical integration can be a source of competitive advantage in the technology industry
According to the Coase Third Theorem, the optimal institutional arrangement for providing roads depends on the comparative transaction costs of government and private provision.
Government Provision: The transaction costs of government provision include the costs of taxation, bureaucracy, and political decision-making. Governments have the advantage of being able to use coercive authority to raise funds and acquire land for roads, but they often suffer from inefficiency, corruption, and political interference.
Private Provision: The transaction costs of private provision include the costs of negotiating contracts with the government, collecting tolls, and enforcing the terms of the contract. Private providers have the advantage of being more efficient and innovative than governments, but they may have incentives to charge high tolls and skimp on maintenance to maximize profits.
The optimal arrangement depends on the specific characteristics of the road. For local roads with low traffic volume, government provision is generally more efficient, as the transaction costs of private provision (such as collecting tolls) are too high. For major highways with high traffic volume, private provision can be more efficient, as the toll revenue can cover the costs of construction and maintenance, and the competition between private providers can lead to better service and lower costs.
Private highways have been successful in many countries, including France, Italy, and Australia, where they have provided high-quality roads at a lower cost than government provision
However, there have also been failures, such as the Indiana Toll Road lease in the United States, where the private operator filed for bankruptcy due to high debt and lower-than-expected traffic volume
The Coase Third Theorem provides a framework for choosing between government and private provision of public goods
There is no one-size-fits-all solution: the optimal arrangement depends on the comparative transaction costs of each alternative
Private provision can be efficient for public goods with high excludability and high traffic volume, such as major highways
Government provision is generally more efficient for public goods with low excludability and low traffic volume, such as local roads
Corporate strategy: Determining the boundaries of the firm and deciding which activities to perform in-house and which to outsource
Organizational design: Designing the optimal organizational structure for a firm, including the degree of centralization and decentralization
Regulatory reform: Choosing between different regulatory approaches, such as command-and-control regulation, market-based regulation, and self-regulation
Public policy: Deciding whether to provide public goods and services through the government, private sector, or public-private partnerships
International trade: Designing international trade agreements and institutions to minimize transaction costs and promote global economic integration
Institutional reform: Reforming institutions in developing countries to reduce transaction costs and promote economic growth
Assuming that one institutional arrangement is always best: There is no one-size-fits-all solution. The optimal institutional arrangement depends on the specific characteristics of the transaction and the comparative transaction costs of each alternative.
Ignoring the transaction costs of government: Don't assume that government intervention is always the solution to market failure. Governments also have transaction costs, and these can be higher than the transaction costs of markets or firms in some cases.
Overlooking the dynamic effects of institutional choice: The choice of institutional arrangement can have dynamic effects on innovation, competition, and economic growth. Consider these effects when making institutional choices.
Neglecting the role of politics: Political factors can have a significant impact on institutional choice and the performance of institutions. Consider the political context when designing and implementing institutional reforms.
Rushing institutional change: Institutional change is a complex and long-term process. Take the time to design and implement institutional reforms carefully, and be patient for results.
Compare transaction costs: Always compare the transaction costs of different institutional arrangements before making a decision. The optimal arrangement is the one that minimizes total transaction costs.
Match the institution to the transaction: The characteristics of the transaction (asset specificity, uncertainty, and frequency) determine the optimal institutional arrangement. Match the institution to the transaction to minimize costs.
Consider all alternatives: Don't limit yourself to just markets or governments. There are many hybrid institutional arrangements, such as contracts, strategic alliances, and public-private partnerships, that can be more efficient than either pure markets or pure governments.
Design institutions to minimize transaction costs: The goal of institutional design should be to minimize transaction costs. Design institutions that reduce information asymmetries, enforce contracts effectively, and provide clear incentives for efficient behavior.
Be flexible: Institutional arrangements should be flexible and adaptable to changing conditions. Regularly review and evaluate the performance of institutions, and be willing to make changes when necessary.
Digital platforms: The rise of digital platforms has created new institutional forms that combine elements of markets and firms. The Coase Third Theorem will be increasingly used to analyze the efficiency of these platforms and to design appropriate regulatory frameworks.
Blockchain technology: Blockchain technology has the potential to reduce transaction costs significantly by providing a secure, decentralized way to define and enforce property rights and contracts. This could change the comparative transaction costs of different institutional arrangements, leading to new forms of economic organization.
Global governance: As the world becomes more interconnected, there will be growing need for effective global institutions to address global challenges such as climate change, pandemics, and international trade. The Coase Third Theorem will be used to design these global institutions and to choose between different governance arrangements.
Behavioral institutional economics: There will be increasing integration of behavioral economics and the Coase Third Theorem, leading to a more realistic understanding of how human behavior affects transaction costs and institutional choice.
Sustainable development: The Coase Third Theorem will be increasingly applied to the challenge of sustainable development, helping to design institutions that balance economic growth with environmental protection and social equity.
These trends will ensure that the Coase Third Theorem remains a dynamic and relevant framework for understanding institutional choice and designing efficient economic institutions in the 21st century.
Wishing you the wisdom to choose the right institutional arrangement for every economic activity and minimize transaction costs!

