DepreciationDepreciation is the allocation of the cost of an asset over its useful life as determined at the time of purchase. It is calculated yearly to enforce the matching principleInsuranceInsurance is the undertaking of one party to indemnify another, in exchange for a premium, against a certain eventuality.Uninsured risksBad debtChanges in fashionTime lapses between ordering and delivery New machinery or technology Different prices at different placesRequirements of an insurance contract * Insurable interest o The insured must derive a real financial gain from that which he is insuring, or stand to lose if it is destroyed or lost. ...