Package: pgt
Type: Package
Title: Data Envelopment Analysis for Pollution-Generating Technologies
Version: 0.7.1
Authors@R: c(
    person("Erik", "Enstad", email = "erik.enstad@nhh.no",
           role = c("aut", "cre"),
           comment = c(ORCID = "0009-0006-1053-3849")))
Description: Nonparametric efficiency analysis for pollution-generating
        technologies under the materials-balance principle. Implements
        the weak-G-disposability technology of Hampf and Rodseth (2015)
        <doi:10.1016/j.eneco.2015.04.001>, scored by the
        minimal-emission programme of Rodseth (2025)
        <doi: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) <doi:10.1016/j.jeem.2012.02.005>, the
        materials-balance cost model of Coelli, Lauwers and Van
        Huylenbroeck (2007) <doi: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'.
License: GPL (>= 3)
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.3
Depends: R (>= 4.0.0)
Imports: stats, graphics, utils, lpSolveAPI
Suggests: testthat (>= 3.1.7), knitr, rmarkdown, frontier
Config/testthat/edition: 3
VignetteBuilder: knitr
LazyData: true
URL: https://github.com/iik1/pgt
BugReports: https://github.com/iik1/pgt/issues
Repository: https://iik1.r-universe.dev
Date/Publication: 2026-10-13 08:36:58 UTC
RemoteUrl: https://github.com/iik1/pgt
RemoteRef: HEAD
RemoteSha: dd8156fc4ab15602299c275eb6a48a7ef431d457
NeedsCompilation: no
Packaged: 2026-10-13 12:28:15 UTC; root
Author: Erik Enstad [aut, cre] (ORCID: <https://orcid.org/0009-0006-1053-3849>)
Maintainer: Erik Enstad <erik.enstad@nhh.no>