Microeconomics

Asymmetric Information

Published Jan 8, 2023

Definition of Asymmetric Information

Asymmetric information is a situation in which one party in a transaction has more or better information than the other. That means one party has access to relevant information that the other party does not have. This can lead to an imbalance of power in the transaction and can thus have a significant impact on the outcome.

Example

To illustrate this, let’s look at the market for used cars. In this market, buyers and sellers have different levels of information. On the one hand, the seller knows the car’s history, its condition, and any potential problems it may have. On the other hand, the buyer only knows what the seller tells him. That means the buyer is at a disadvantage because he does not have access to the same information as the seller. Meanwhile, the seller has an incentive to withhold certain information (e.g., about prior accidents or other issues) because the buyer would not be willing to pay the same price if they knew about this information.

As a result, the seller is likely to use his superior knowledge to manipulate the buyer into paying a higher price, and the buyer may end up paying more for the car than it is actually worth. This is an example of asymmetric information in action.

Why Asymmetric Information Matters

Asymmetric information can have a significant impact on the outcome of a transaction. It can lead to market distortions, such as higher prices, lower quality products, and reduced competition. That means it is important for policymakers to be aware of the potential effects of asymmetric information and take steps to reduce its impact. This can be done by introducing regulations that require sellers to disclose certain information or by providing buyers with access to the same information that they have.