information economics
Quick Summary
Information economics is a field that studies how the unequal distribution of information affects economic decisions and market outcomes. It highlights that when one party in a transaction has more or better information than the other, it can lead to inefficiencies and market failures.12
Key concepts include:
* Adverse Selection: Occurs when one party has private information about the risk involved, leading to transactions that favor the informed party. Examples include the used-car market ("lemons") and health insurance, where less healthy individuals may be more likely to seek coverage.34
* Moral Hazard: Arises when an agreement incentivizes misbehavior because one party is protected from the consequences of their actions. This can be seen in insurance, where coverage might encourage more utilization of services, or in financial markets, where institutions might take on excessive risk assuming a bailout.56
Information economics demonstrates how "asymmetric information" can lead to "missing markets" and influences areas like contract theory and principal-agent theory.1
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