Link Project, ICON Project, Klaytn in Japan and South Korea are starting their business. How these projects can change the local economy? Carry protocol and Contents protocol can be a good example for this.
If transparency can change the mood of an economy towards positive direction, then yes, blockchain can change the economy for better! However, it's too early to say anything at this moment! Blockchain needs more time to make a solid impact which can be used an an example! Till date, we have none which had made a mass impact! It's still at the launchpad getting ready to unleash a massive change!