Microfinance is a term that refers to providing basic financial services to the poor; it has become a powerful tool for poverty alleviation. The idea is a relatively new one - modern microfinance began through experiments in the 1970's - but it has grown quickly and currently serves over 155 million clients worldwide. There are many studies that provide evidence of the positive impact of microfinance and the movement has an array of enthusiastic proponents. It is certainly not the only solution in the battle against poverty, however, and there are also studies that question the true depth of its impact. In looking at microfinance around the globe, one thing becomes clear: although it is an international phenomenon, microfinance has definitely found more success in some regions over others.