1. Ali, R., Barrdear, J., Clews, R., & Southgate, J. (2014). Innovations in payment technologies and the emergence of digital currencies. Rochester, NY: Social Science Research Network.
2. Arango, C., & Taylor, V. (2008a). Merchant acceptance, costs, and perceptions of retail payments: A Canadian survey (Discussion Paper No. 08–12). Bank of Canada.
3. Arango, C., & Taylor, V. (2008b). Merchants’ costs of accepting means of payment: Is cash the least costly? Bank of Canada Review, 2008–2009(Winter), 17–25.
4. Arango-Arango, C. A., Bouhdaoui, Y., Bounie, D., Eschelbach, M., & Hernandez, L. (2018). Cash remains top-of-wallet! International evidence from payment diaries. Economic Modelling, 69, 38–48.
5. Asokan, N., Janson, P., Steiner, M., & Waidner, M. (2000). State of the art in electronic payment systems. In В. M. V. Zelkowits (Ed.), Advances in computers (Vol. 53, pp. 425–449). Elsevier.