Long-arm statutes are laws enacted by individual states that extend the reach of their courts to exercise personal jurisdiction over out-of-state defendants. These statutes allow courts to bring individuals or entities into a state for legal proceedings based on specific actions or connections they have with that state, such as conducting business, committing a tort, or owning property. By enabling jurisdiction beyond traditional boundaries, long-arm statutes play a crucial role in ensuring that defendants can be held accountable in states where their actions have significant impacts.