Payment system nowadays areencouraged to move toward electronic payments (epayments), which are expected to be more efficientwith low cost and high convenience for making payment. However, cash cannot be perfectly substituted by epayment and is still needed in society. Beside the promotion of policy towards epayment, cash denomination should beconsidered and restructured tobecompatible with the real demandespecially when there are various changes in circumstances such as epayment usage, price leveland social preferences. This research examine ...