What Is Moral Hazard?
Moral hazard describes a change in behavior that occurs after a party is protected from the downside of its own actions. The term originated in insurance, where a policyholder who is fully covered against loss has weaker incentives to prevent that loss. In economics, it is a classic problem of asymmetric information: the protected party knows how much risk it is taking, while the party bearing the cost cannot fully observe or control that behavior.
Moral hazard is often confused with adverse selection, but the timing differs. Adverse selection happens before a contract is signed, when one side hides information about its type. Moral hazard happens after the contract is in place, when one side changes its behavior because the incentives have shifted.
How Moral Hazard Shows Up in Finance
The most famous modern example is the 2008 financial crisis. Institutions deemed too big to fail expected government support in a crisis, which arguably encouraged aggressive leverage and risk-taking beforehand. When the U.S. government rescued firms such as AIG with an initial $85 billion facility, critics argued the bailouts confirmed those expectations and planted the seeds of future excess. Deposit insurance creates a milder version: depositors have little reason to monitor their bank's health because the FDIC guarantees balances up to $250,000.
Moral hazard also operates inside companies and funds. A trader paid a large bonus for gains but shielded from losses has an incentive to swing for the fences. Lenders respond to these dynamics with covenants, collateral requirements, and personal guarantees, while insurers use deductibles and co-pays so the insured party keeps some skin in the game.
Why Moral Hazard Matters
Much of financial contract design exists to blunt moral hazard. Private equity firms require management teams to roll over meaningful equity into a buyout so executives share the downside. Credit agreements restrict dividends and additional debt so borrowers cannot shift risk onto lenders. Understanding which behaviors a contract is trying to prevent makes those documents far easier to read and negotiate.
For interview preparation, moral hazard is a favorite behavioral-economics question in markets and policy discussions. Being able to explain why bailouts are controversial, or why a fund's carried interest structure includes clawbacks, signals that a candidate understands incentives rather than just formulas.
