We see sometimes bitcoin price increase or decrease. How I can predict whether bitcoin price increase or decrease.Again, who controll this price.I appreciate if you kindly share your experience.
I think the word "control" would not be an appropriate term to be used. Since crypto currency is relatively new then we should think it as some what volatile. If you are asking for a specific "strategy" on how to predict bitcoins price then I suggest you should start to study and learn how to perform "technical analysis" and cross reference it with "fundamental" news. usually when there are upcoming good or bad news regarding btc it would determine whether the price would go up or down. Using a technical analysis is just an indicator of it.