Best way to gain control over something like this is to add a layer such as a side token. You can't do this in a bass root coin, but then you're placing the entire price control within the developers hands. In other words, you could use a clone of Bitcoin and recode it placing price control of its value completely within the wallet.
We cant control the volatility of bitcoin because this is a decentralized investment .The mean purpose of this site is to develop more knowledge about investing to have huge profit returns. This is unlike on the bank that are centralized ,in here we can take advantage because it usually have a possible to increase its value.