Reinsurance contracts are agreements between insurance companies where one insurer transfers part of its risk to another insurer. This is done to protect against losses that may exceed a certain threshold. The reinsurer agrees to pay a portion of the claims that the original insurer may face, in exchange for a premium. This allows the original insurer to improve its financial stability and potentially take on more risk. These contracts often involve complex calculations and terms, making them an essential tool in the insurance industry.