title: Policy needed for additive manufacturing.
authors.affiliation: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, USA and at the Instituto Superior Técnico, Lisbon, Portugal.
authors.forename: Jaime Bonnín
authors.initials: JB
authors.lastname: Roca
authors.affiliation: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, USA.
authors.forename: Parth
authors.initials: P
authors.lastname: Vaishnav
authors.affiliation: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, USA.
authors.forename: Erica R H
authors.initials: ER
authors.lastname: Fuchs
authors.affiliation: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, USA.
authors.forename: M Granger
authors.initials: MG
authors.lastname: Morgan