I do not expect a nobel prize-winning economist to say something like this. They will not know anything about bitcoin but prefer to start misinforming people and feeding them with wrong information.

Bitcoin pave ways to other cryptocurrencies. Exchanges then were created. Wallets were created. Many other businesses were created. These businesses employed people. The people they employed buy things which is an indirect means if helping economy.

If you hold bitcoin and earn money from it, that will indirectly help economy.

How about miners. There are bitcoin miners. They create job and pay money for electricity.