Abstract:
The main aim of the study was to assess the suitability of (the economic value added
index and the traditional financial indicators) in measuring the Abnormal market returns
of the shares of service companies listed on the Amman Stock Exchange. The study was
conducted on a sample consisting of (187) observations to which the conditions were
applied, during the period (2005-2015). In this study the companies’ data was collected
from the annual reports published on the Amman Stock Exchange. Furthermore, a Panel
data Approach were used to test the study hypotheses, through both the fixed effects
model and the random effects model. The study concluded that traditional financial
indicators are more appropriate in measuring Abnormal market returns. The results of the
study also showed when retesting the assumptions with the company size being entered
as a moderating variable, that there is an improvement in the economic value added
index in measuring the Abnormal market returns, with the preference remaining for the
traditional financial indicators.