Compute premiums for short-term insurance coverages
Loss costs and expense provisions are given and you must compute a premium using the loss ratio or pure premium method.
Pure premium method: indicated premium = (pure premium + fixed expenses) / (1 - variable expenses - profit). Loss ratio method: indicated rate change = (experience loss ratio / target loss ratio) - 1. Apply trend and on-level factors to bring historical losses and premiums to the policy period.
Pure premium method: R = (L̄ + F) / (1 - V - Q), where L̄ is pure premium, F fixed, V variable, Q profit.