Bitcoin is another relatively new technology that has proven to be useful in the field of economics. Bitcoin allows transactions to be made with no middle-man which means no banks have to be used. The currency also allows for the user to not give their name and also not have to pay and fee. Bitcoins can be bought and sold much like stocks and their price fluctuates based on demand. The currency is very useful in the field of economics because they can be bought and sold more easily than other currencies.