# Definition of Coase’s theorem

## What is Coase’s theorem?

Coase Theorem is a legal and economic theory developed by economist Ronald Coase regarding property rights, which states that where there are complete competitive markets with no transaction costs and an efficient set of inputs and outputs, an optimal decision will be chosen.

It essentially asserts that negotiation between individuals or groups related to property rights will lead to an optimal and effective outcome, whatever the outcome.

Key points to remember

- Coase’s theorem argues that, under the right conditions, parties to a property rights dispute will be able to negotiate an economically optimal solution, regardless of the initial distribution of property rights.
- Coase’s theorem offers a potentially useful way to think about how best to resolve conflicts between competing firms or other economic uses of limited resources.
- For Coase’s theorem to apply fully, the conditions for efficient and competitive markets, and above all zero transaction costs, must be met.
- In the real world, perfect economic conditions rarely exist, which makes Coase’s theorem better suited to explaining why inefficiencies exist rather than a means of resolving disputes.

## Understanding Coase’s theorem

Coase’s theorem is applied in case of conflicts of property rights. Coase’s theorem states that under ideal economic conditions, when there is a conflict of property rights, the parties involved can negotiate or negotiate terms that will accurately reflect the full costs and underlying values of the property rights in question, resulting in the most effective result. .

For this to happen, the conditions conventionally assumed in the analysis of efficient and competitive markets must be in place, including the absence of transaction costs. The information must be free, perfect and symmetrical.

One of the principles of Coase’s theorem is that trading must be free; if there are costs associated with negotiation, such as those associated with meetings or law enforcement, it affects the bottom line. Neither party can wield market power over the other so that the bargaining power between the parties can be equal enough not to influence the outcome of the settlement.

Coase’s theorem shows that when it comes to property rights, the parties involved do not necessarily consider how property rights are distributed if these conditions apply and they only care about current income and rents. and future without taking into account issues such as personal sentiment, social equity or other non-economic factors.

Coase’s theorem has been widely viewed as an argument against legislative or regulatory intervention in disputes over property rights and privately negotiated settlements. It was originally developed by Ronald Coase when discussing radio frequency regulation. He argued that frequency regulation was not necessary because the stations which had the most to gain by broadcasting on a particular frequency had an incentive to pay other broadcasters not to interfere.

## Example of Coase’s theorem

Coase’s theorem is applied to situations where the economic activities of one party impose a cost or damage the property of another party. Based on the negotiation that takes place during the process, funds may be offered to compensate one party for the activities of the other or to pay the party whose activity inflicts the damage in order to terminate that activity.

For example, if a company that produces machinery in a factory is the subject of a noise complaint initiated by neighboring households who can hear the loud noises of machines being manufactured, Coase’s theorem would lead to two settlements possible.

The business may choose to offer financial compensation to the parties involved in order to be allowed to continue producing noise or the business may refrain from producing noise if neighbors can be encouraged to pay the business for the noise. do, in order to compensate for the noise. company for the additional costs or loss of revenue associated with the noise shutdown. The latter would not actually happen, so the result would be the continued operation of the business without exchanging money.

If the market value produced by the activity that makes the noise exceeds the market value of the damage that the noise causes to neighbors, then the effective result of the market dispute is that the company will continue to manufacture machinery. The company can continue to produce noise and compensate neighbors with the income generated.

If the value of the machine-making firm’s output is less than the cost imposed on neighbors by noise, the effective result is that the firm will stop making machines, and the neighbors will compensate the firm for doing so. In the real world, however, neighbors wouldn’t pay a company to stop making machines because the cost of doing so is higher than the value they place on the absence of noise.

## Can Coase’s theorem be applied in the real world?

For Coase’s theorem to apply, the conditions for an efficient competitive market around the disputed property must be met. Otherwise, it is unlikely that an effective solution will be found.

These assumptions: zero transaction costs (negotiation), perfect information, no difference in market power and efficient markets for all goods and related factors of production, are obviously a major obstacle to be overcome in the real world where the costs of transactions are ubiquitous, information is never perfect, market power is the norm, and most finished product and factor markets do not meet the demands of fully competitive efficiency.

Because the conditions necessary for the application of Coase’s theorem in real-world disputes over the distribution of property rights hardly ever occur outside of idealized economic models, some question its relevance to applied questions of law. and economy.

Recognizing these real-world difficulties with the application of Coase’s theorem, some economists do not see the theorem as a prescription on how disputes should be resolved, but as an explanation of why so many seemingly inefficient results to economic disputes can be found in the real world. .