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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "pgt" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'pgt: Data Envelopment Analysis for Pollution-Generating Technologies'
version: 0.7.1
identifiers:
- type: doi
  value: 10.32614/CRAN.package.pgt
abstract: Nonparametric efficiency analysis for pollution-generating technologies
  under the materials-balance principle. Implements the weak-G-disposability technology
  of Hampf and Rodseth (2015) <https://doi.org/10.1016/j.eneco.2015.04.001>, scored
  by the minimal-emission programme of Rodseth (2025) <https://doi.org/10.1007/s11123-025-00768-0>
  with its directional representation and five-component decomposition, the by-production
  intersection technology of Murty, Russell and Levkoff (2012) <https://doi.org/10.1016/j.jeem.2012.02.005>,
  the materials-balance cost model of Coelli, Lauwers and Van Huylenbroeck (2007)
  <https://doi.org/10.1007/s11123-007-0052-8> and a weak-disposability reference model,
  with a pre-estimation audit of every materials-balance account, metafrontier decompositions,
  bad-output shadow prices, marginal abatement cost curves, a cross-axiom comparison
  harness, a global Malmquist-Luenberger productivity index and subsampling sensitivity
  intervals. Estimators are solved with 'lpSolveAPI'.
authors:
- family-names: Enstad
  given-names: Erik
  email: erik.enstad@nhh.no
  orcid: https://orcid.org/0009-0006-1053-3849
preferred-citation:
  type: manual
  title: 'pgt: Data Envelopment Analysis for Pollution-Generating Technologies'
  authors:
  - family-names: Enstad
    given-names: Erik
    email: erik.enstad@nhh.no
    orcid: https://orcid.org/0009-0006-1053-3849
  year: '2026'
  notes: R package version 0.7.1
  url: https://github.com/iik1/pgt
repository: https://iik1.r-universe.dev
repository-code: https://github.com/iik1/pgt
commit: dd8156fc4ab15602299c275eb6a48a7ef431d457
url: https://github.com/iik1/pgt
date-released: '2026-10-13'
contact:
- family-names: Enstad
  given-names: Erik
  email: erik.enstad@nhh.no
  orcid: https://orcid.org/0009-0006-1053-3849