Definition
Asymmetric Information occurs when one party in a transaction has more or better information than the other. This imbalance can lead to inefficient markets, poor decision-making, and unintended consequences.
Why It Matters
Asymmetric information is important because it can cause market failures, such as adverse selection—where high-risk parties are more likely to engage in transactions—and moral hazard—where informed parties may take on excessive risk because others bear the cost. Policymakers, insurers, and financial institutions monitor and manage asymmetric information to maintain fair and efficient markets.
Example
A classic example is the used-car market: the seller knows the vehicle’s true condition, while the buyer may not. Buyers may pay less for all cars to hedge against potential defects, causing sellers of high-quality cars to exit the market, a phenomenon known as “the market for lemons.â€