The currencies of the world are affected by many different parameters such as politics, economy, wars. The value of the money also shows up and down according to these parameters.
What are the parameters that affect bitcoin?
Government, global economic and businesses. We should know that bitcoin is banned in some countries and it affects the bitcoin market to operate in all countries in the world, the global economic affects the bitcoin price sometimes. Bitcoin has its pump and dumps and these can happen anytime so we can't be sure that everything is going good and slowly, when more businesses accept bitcoin then the bitcoin marketplace will have a better range.