A lot! in fact, too many that we won't be able to count them will even with the help of all our fingers! And yes, you are absolutely right. world economic factors and economic occurrences really do contribute too to the prices of not just bitcoins but also to all the other crypto currecies here in this industry or the crypto world. Which is why the prices are down at the moment and has stayed in the bearish season for a long time since there were a lot of fuds that were spread all throughout the internet regarding various issues including economic occurrences.