The deputy governor of New Zealand's Reserve Bank (RBNZ) has said the institution is "not threatened" by the rise of bitcoin and digital currencies.
"I do not doubt that future digital currencies will become more realistic substitutes for cash," he said, also mentioning that, so far, bitcoin seems to "behave more like a commodity than a currency".
Of greater concern to the deputy governor were new players' involvement and security in the electronic payments industry in general, whether cryptocurrency-related or not.
The past 30 years have seen payments move from being primarily cash and cheques to more contactless, online and mobile phone-based systems.
Increased participation and new technologies brought with them increased operational risks, Spencer added, which could be disruptive to the economy. The general payments industry would have to manage these risks while still nurturing innovation and efficiency.
Then in July this year, RBNZ deputy governor and head of operations Geoff Bascand described digital currencies as a "challenge to the form and provenance" of money that could supplant cash, despite some problems with price volatility.
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