Before revision:  We give a brief introduction and begin with discussing interactions between Physics, Mathematics, Economics and Finance that led to the emergence of Econophysics in the second part. Then the third part is dedicated to empirical studies revealing statistical properties of financial time series.
After revision:  We give a brief introduction and begin with discussing interactions between Physics, Mathematics, Economics and Finance that led to the emergence of Econophysics . Then we present empirical studies revealing statistical properties of financial time series.