| The stability of quantity of money becomes an important factor in macro economy indicators. Various theories presented by experts related economic stability of the velocity of money raises the pro and contra. The adherents of the classical theory states that the velocity of money is constant in the long term. While adherents of modern economic theory, states that the velocity of money is not constant because it is influenced by many factors. The purpose of this study is to see whether the velocity of money in Indonesia, Malaysia, and Singapore is constant or not during the period 1990¬2013. Moreover, the purpose of this study is also indirectly to prove the theory of Irving Fisher. This study uses a Unit Root Test analysis through testing Augmented Dicky-Fuller Test (ADF) and Ordinary Least Squares by program tools E-views 7. The results of this study indicate that the velocity of money in Indonesia, Malaysia, Singapore is not constant / stationary or contain a unit root. Observations-in the long term in these countries are found not to comply with the theory of Irving Fisher. |