Bitcoin is a digital currency of great value. Bitcoin value is always changing rapidly. Factors affecting bitcoin trading.
1. Supply and demand.
2. Communication.
3. Political change.
4. Changes in government regulations.
5. Changes in the rules of bitcoin.
Well, OP isn't talking about trading so I don't see where you're getting at, you might be right about it though but your answers not in the right thread. For businesses, I don't think that communication is a problem because most businesses built in a region would probably speak the same language. Your number 3 and 4 are soewhat redundant.