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Possible contributions to neutrinoless double beta (ββ)0ν decay in the economical 3-3-1 model are discussed. We show that the (ββ)0ν decay in this model is due to both sources— Majorana hMν iL and Dirac hMν iD neutrino masses. If the mixing angle between charged gauge bosons, the standard model W and bilepton Y is in range of the ratio of neutrino masses hMν iL/hMν iD, then both the Majorana and Dirac masses simultaneously give contributions dominant to the decay. As results, constraints on the bilepton mass are also given. | Neutrinoless double beta decay in the economical 3-3-1 model
