While this partly reflects the profound structural changes and reforms that have taken place, it may also reflect the fact that these countries are rather small and specialised. As trade integration and foreign direct investment flows into these countries continue, there is reason to believe that the level of synchronisation will increase.
Specifically, there are various options, such as interconnection among payment platforms, participation of payment providers on a common platform, standardization of payment terminals, retail point of sale compatibility, and merchant sharing. When we look overseas, interoperability is the common feature of countries where cashless payments are widely used.