In order to drive positive economics i think it must have good governance and the cooperation's of the people who belongs to the nation. We all know that cryto currency is one of the developmental factor in providing jobs to people. It must have more supply to provide the needs of the demand.
Not so sure what the OP is referring to as positive economies, but if that has to do with price, we all know that will have a lot to do with demand, the mentality of people when it comes to cryptocurrencies, the idea of sticking with the long term as well as usability all together will really help.
However, we still have to realize that this is a young space and it is still developing, so I believe over time, a lot of things will most definitely change and we will obviously be able to see the market grow in demand and a sustainable one as well.