[21]  See, for example, Calvo, G. (2002), “On dollarization”, The Economics of Transition, Vol. 10, No 2, pp. 393-403. [22] See Committee on Payments and Market Infrastructures (2018), Cross-border retail payments, Bank for International Settlements, Basel.
Data on tourism flows (international tourist arrivals by world region) are from the United Nations World Tourism Organization; those on internet and mobile phone users are from the International Telecommunication Union and the World Bank; and data on global remittances are from the World Bank.