To create a stable cryptocurrency that is both decentralized and non-collateralized is hard. You would need 2 requirements, measuring the exchange rate in a decentralized way, and controlling the coin supply. Both of these are difficult to make.<p>https://blog.ethereum.org/2014/11/11/search-stable-cryptocurrency/<p>This blog by Vitalik Buterin kind of summarizes this and provides some solutions that are not perfect. Do you have any suggestions?
"Stable" does not need to be synonymous with "pegged". Have a look at feron.io - it is an algorithmic monetary policy design that “resist change” in its coin’s price irrespective of the absolute price level. As a result, it requires no exchange rate measurement. It imports no information onto the chain at all, and instead infers what is happening in the outside world from users' on-chain behaviour.