What causes prostitution?

There are two types of prostitution, these are voluntarily and induced prostitution. Voluntarily Prostitution arises due to financial crunches that many people suffer due to lack of employability, no better resource of getting money, lack of employable skills due to lack of education etc, the list is endless. While induced of forced prostitution is done by people who are involved in human trafficking, it is the second biggest illegal trade operated next to after trafficking. Many under aged and teenage girls come from under developed parts of the world, they are mostly from Asia and Eastern European countries.