# Cost-benefit analysis for members The risk equations in the [late payment](/iIVkdpz_S76a_6FexHZWAw) and [default](/nO2IbqcMTbiNSY0AG0PCnA) entries do not include costs of club membership (e.g. fixed fees or transaction charges); although these could be considered a 'risk' with a 100% probability of ocurrence and added to the left-hand side of the equations, it seems more sensible to include these as part of an overall cost-benefit analysis.