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# CITATION 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 "productivity" in publications use:'
type: software
license: GPL-3.0-only
title: 'productivity: Indices of Productivity Using Data Envelopment Analysis (DEA)'
version: 1.1.0
identifiers:
- type: doi
  value: 10.32614/CRAN.package.productivity
abstract: Levels and changes of productivity and profitability are measured with various
  indices. The package contains the multiplicatively complete Färe-Primont, Fisher,
  Hicks-Moorsteen, Laspeyres, Lowe, and Paasche indices, as well as the classic Malmquist
  productivity index. Färe-Primont and Lowe indices verify the transitivity property
  and can therefore be used for multilateral or multitemporal comparison. Fisher,
  Hicks-Moorsteen, Laspeyres, Malmquist, and Paasche indices are not transitive and
  are only to be used for binary comparison. All indices can also be decomposed into
  different components, providing insightful information on the sources of productivity
  and profitability changes. In the use of Malmquist productivity index, the technological
  change index can be further decomposed into bias technological change components.
  The package also allows to prohibit technological regression (negative technological
  change). In the case of the Fisher, Hicks-Moorsteen, Laspeyres, Paasche and the
  transitive Färe-Primont and Lowe indices, it is furthermore possible to rule out
  technological change. Deflated shadow prices can also be obtained. Besides, the
  package allows parallel computing as an option, depending on the user's computer
  configuration. All computations are carried out with the nonparametric Data Envelopment
  Analysis (DEA), and several assumptions regarding returns to scale are available.
  All DEA linear programs are implemented using 'lp_solve'.
authors:
- family-names: Dakpo
  given-names: K Hervé
- family-names: Desjeux
  given-names: Yann
  email: yann.desjeux@inra.fr
- family-names: Latruffe
  given-names: Laure
preferred-citation:
  type: manual
  title: 'productivity: Indices of Productivity and Profitability Using Data Envelopment
    Analysis (DEA)'
  authors:
  - family-names: Dakpo
    given-names: K Hervé
  - family-names: Desjeux
    given-names: Yann
    email: yann.desjeux@inra.fr
  - family-names: Latruffe
    given-names: Laure
  year: '2018'
  notes: R package version 1.1.0
  url: https://CRAN.R-project.org/package=productivity/
repository: https://ydesjeux.r-universe.dev
repository-code: https://r-forge.r-project.org/tracker/?group_id=2245
commit: 4bbd9e9b4175b291d0e9d3ffb7c09c6e69f82533
url: https://r-forge.r-project.org/tracker/?group_id=2245
date-released: '2018-03-28'
contact:
- family-names: Desjeux
  given-names: Yann
  email: yann.desjeux@inra.fr