Still, he sees the value in digital payments systems and supports electronic use of government-backed currencies like the dollar.
“I’ve been a great advocate of moving to an electronic payments mechanism. There are a lot of efficiencies. I think we can actually have a better regulated economy if we had all the data in real time, knowing what people are spending,” he says.
https://www.cnbc.com/2019/05/02/joseph-stiglitz-we-should-shutdown-the-cryptocurrencies.html
As far i know, our banking system right now not transparant compare with blockchain system. Cryptocurrency with blockchain system very transparant on every transaction. Cryptocurrency already recognized as big industry and i think its hard to shut down cryptocurrency because its decentralized