A solidary obligation, or an obligation in solidum, is a type of obligation in the civil law jurisprudence that allows either obligors to be bound together, each liable for the whole performance, or obligees to be bound together, all owed just a single performance and each entitled to the entirety of it. In general, solidarity of an obligation is never presumed, and it must be expressly stated as the true intent of the parties' will. Contractual solidary obligations are frequently created by insurance policies or co-signing a loan. A common example of a solidary obligation created thorough operation of law is vicarious liability such as respondeat superior.