The RAS method to adjust the baseline technical coefficient
matrix A
is employed for the alternative economic structure in
2015. The key steps to implement the RAS method include the
estimations of three vectors for 2015 with the 1:45:54 three-sector
shares, namely total outputs by sector X
2007
, total intermediate
sales by sector U
2015
2015
, and total intermediate purchases by sector
V
2015
. The three vectors are then used to update A
and to
estimate A
[70,71]. Although there are a number of alternative
methods to update the A matrix, empirical studies have found that
the RAS technique has several advantages, such as preserving nonnegativity
of the coefficient a
2015
(elements of A), not requiring to
solve complex nonlinear programming problems [72,73], and
being applicable even to an emerging economy [74].