On some semilattice structures for production technologies

Tracing back from Charnes et al. 9] many approaches have been proposed to extend the DEA production model to non-convex technologies. The FDH method were introduced by Deprins et al. 13] and it only assumes a free disposal assumption of the technology. This paper, continues further an earlier work by Briec and Horvath 7]. Among other things, a new class of semilattice production technologies is introduced. Duality results as well as computational issues are proposed.