•Metatechnologies are used when firms operate in different group technologies.•Using methodologies typically requires solving mixed integer linear programs.•We develop a linear program for efficiency assessment in nonconvex metatechnologies.•We extend the notion of returns to scale to a metatechnology.•We show how the dual can be used for returns-to-scale characterization.
European Journal of Operational Research – Elsevier
Published: Jul 1, 2018
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