I think that there are many factors affecting the bitcoin price.These factors can be regarded as economic and political. Under their influence, the demand and supply for bitcoins are formed in the market of crypto-currencies.It should also take into account the decentralized nature of this currency, the price of bitcoins is usually not controlled by any company, organization or government. But the restrictions and prohibitions of governments, as well as the legal regulation of the bitcoins, can influence the stability of the crypto-currency network in a particular country.