An electrically-conductive resin composition comprises (A) a thermoplastic
resin and (B) an electrically-conductive polymer blended together. The
electrically-conductive polymer is an electrically-conductive polyester
doped with a dissociable inorganic salt. The doped polyester is at least
one polyester selected from the group consisting of (a) polyesters each
of which has a weight average molecular weight of from 50,000 to 500,000
and has been obtained by subjecting at least caprolactone as a monomer to
ring-opening polymerization and (b) comb polyesters each of which has one
or more polyester chains each having a weight average molecular weight of
from 50,000 to 200,000 and has been obtained by subjecting a lactone to
ring-opening polymerization in the presence of a trifunctional or higher
functional, polyhydric alcohol as a polymerization initiator.
Electrically-conductive resin moldings made of such
electrically-conductive resin compositions are also disclosed.