We often pay in cash or by credit card. Differently from cash, credit card often leads us to over-consumption. This is because credit card does not require us to write down the amount paid (rehearsal) and our wealth is not depleted immediately rather than with a delay (immediacy) (Soman 2001).
We could also donate in cash or by credit card. For example, visitors at the Tate Liverpool in UK could donate 4 pounds by inserting bills into a silver box or tapping their credit cards on a white device. Which donation mechanism benefits the museum better?
Past expenses have been shown to influence future spending behavior by depleting available budgets. However, a prerequisite for this relationship is the accurate recall of past payments and the experiencing of the full aversive impact associated with them. This article shows that the use of different payment mechanisms influences both these factors and hence moderates the effects of past payments on future spending. Specifically, past payments strongly reduce purchase intention when the payment mechanism requires the consumer to write down the amount paid (rehearsal) and when the consumer’s wealth is depleted immediately rather than with a delay (immediacy). Two experiments show support for the proposed theoretical framework.