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Why would China's central bank want to issue a digital yuan with an expiration date? Apparently, in 2021, China announced it was testing an expiration date feature on its digital yuan, which would allow money to expire if not used. I was wondering how this could impact the economy as a whole were this to become the dominant currency in China and how this would be in the interest of the Chinese central bank.
The official digital Yuan issued by the central bank of China does not has the expiration date. The "digital Yuan" mentioned in the question should be the digital consumption voucher which is issued by the local government and has the expiration date.