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📋 '''Commercial casualty insurance''' is a broad category of [[Definition:Commercial insurance | commercial insurance]] that protects businesses against [[Definition:Liability | liability]] arising from injuries to third parties, employee-related claims, and certain legal obligations that fall outside the scope of [[Definition:Property insurance | property insurance]]. Unlike property coverages that indemnify the policyholder for damage to its own assets, casualty lines address the financial consequences of harm a business causes — or is alleged to have caused — to others. The category encompasses [[Definition:General liability insurance | general liability]], [[Definition:Workers' compensation insurance | workers' compensation]], [[Definition:Professional liability insurance | professional liability]], and [[Definition:Products liability insurance | products liability]], among other lines.

⚙️ Carriers and [[Definition:Managing general agent (MGA) | MGAs]] underwrite commercial casualty risks by evaluating a company's operations, claims history, employee count, revenue, and the legal environment in the jurisdictions where it does business. [[Definition:Actuarial analysis | Actuarial analysis]] plays a central role because casualty losses tend to develop over long [[Definition:Tail | tail]] periods — a [[Definition:Workers' compensation insurance | workers' compensation]] claim, for instance, may involve medical payments stretching years into the future. Policies are typically written on either an [[Definition:Occurrence-based policy | occurrence]] or [[Definition:Claims-made policy | claims-made]] basis, each of which affects how and when coverage is triggered. [[Definition:Premium | Premiums]] are often determined through [[Definition:Experience rating | experience rating]] or [[Definition:Retrospective rating | retrospective rating]] plans that tie cost directly to the insured's own loss performance.

💡 For insurers, the casualty book of business represents both a major revenue engine and a significant source of [[Definition:Reserve | reserve]] volatility. Long-tail claims can deteriorate unexpectedly due to shifts in litigation trends, regulatory changes, or [[Definition:Social inflation | social inflation]] — the phenomenon of rising jury awards and expanded theories of liability. [[Definition:Reinsurance | Reinsurers]] closely monitor casualty portfolios when structuring [[Definition:Treaty reinsurance | treaty]] and [[Definition:Excess of loss reinsurance | excess-of-loss]] programs, and [[Definition:Rating agency | rating agencies]] scrutinize reserve adequacy as a key indicator of an insurer's financial health. Understanding the dynamics of commercial casualty insurance is therefore essential for anyone involved in [[Definition:Underwriting | underwriting]], [[Definition:Claims management | claims management]], or [[Definition:Insurance regulation | regulatory oversight]].

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:General liability insurance]]
* [[Definition:Workers' compensation insurance]]
* [[Definition:Professional liability insurance]]
* [[Definition:Commercial umbrella insurance]]
* [[Definition:Social inflation]]
* [[Definition:Experience rating]]
{{Div col end}}

Definition:Commercial casualty insurance - Revision history

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