  Firms with different ownership structures could be argued to have different
levels of efficiency.Highly concentrated firms are expected to be more
efficient as this type of ownership structure may alleviate the conflict of
interest between managers and shareholders.In Malaysia, public-listed firms
have been found to have highly concentrated ownership structure.However,
whether this evidence holds for every industry has not been established.Hence,
the objective of this paper is to investigate whether there are variations in
ownership structure and firm's efficiency across sectors.To achieve this
objective, the frequency distributions of ownership structure were calculated
and firms efficiency scores for consumer products, industrial products,
construction and trading/services sectors were measured.Data Envelopment
Analysis(DEA) under the assumptions of constant returns to scale(CRS) and
variable returns to scale(VRS) was employed to estimate firms efficiency
scores.A sample of 156 firms listed on the Kuala Lumpur Stock Exchange(KLSE)
was selected using the stratified random sampling method. The findings have
shown that there are variations in firm ownership structure and efficiency
across sectors.
