When the tourism growth will result economic growth is coming from when they use the same currency to pay for travel or the other side. No need to change currencies come and go.
When tourism growth As a result, the economy will grow by as a result of using the same currency. It can be used for tourism. Or other convenient No need to change the currency.
When tourism growth. To the economy growth. As a result, when use the same currency. Will be spent for tourism or other convenient, do not need to change สกุลเงินไปมา.