The demand for stored value payment instruments

Due to their functionality, stored value purses based on smart card technology are prominent candidates for being the dominant medium of exchange for micropayments. However, the overall prospects of these payment systems are yet ambiguous, both from the perspective of practice and monetary theory, because their potential to substitute for cash is still largely unknown. As a contribution to the field, a model is proposed founding the potential utilization of stored value cards in microeconomic calculus. As a result, the model provides insight into the crucial parameters determining usage. Moreover, the model suggests that issuers should maximize demand and profits by offering interest payments or insurance against loss.