Package: productivity
Version: 1.0.0
Date: 2017-07-20
Title: Indices of Productivity Using Data Envelopment Analysis (DEA)
Authors@R: c(
person("K Hervé", "Dakpo", role = "aut"),
person("Yann", "Desjeux", , "yann.desjeux@inra.fr", role = c("aut","cre")),
person("Laure", "Latruffe", role = "aut"))
Maintainer: Yann Desjeux <yann.desjeux@inra.fr>
Description:
Levels and changes of productivity and profitability are measured with various indices.
In addition to the classic Malmquist productivity index, the 'productivity' package contains
also the multiplicatively complete Färe-Primont, Fisher, Laspeyres, Lowe, and Paasche indices.
Färe-Primont and Lowe indices verify the transitivity property and can therefore be used for
multilateral or multitemporal comparison.
Fisher, 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 improvements.
In the use of Malmquist productivity index, the technological change index can be further
decomposed into bias technological change components.
In the case of the Fisher, Laspeyres, Paasche and the transitive Färe-Primont and Lowe indices,
it is furthermore possible to rule out technological change. Deflated shadow prices, used in
those indices' computations, are also returned.
The package also allows to prohibit negative technological change.
All computations are carried out with the nonparametric Data Envelopment Analysis (DEA),
and several assumptions regarding returns to scale are available.
The package allows parallel computing as an option, depending on the user's computer configuration.
Depends: R (>= 2.16)
BugReports: https://r-forge.r-project.org/tracker/?group_id=2245
Imports: doParallel, foreach, methods, plm, Rglpk
License: GPL-3
Encoding: UTF-8
LazyData: true
NeedsCompilation: no
Packaged: 2017-07-20 10:31:26 UTC; ydesjeux
Author: K Hervé Dakpo [aut],
Yann Desjeux [aut, cre],
Laure Latruffe [aut]
Repository: CRAN
Date/Publication: 2017-07-20 10:48:32 UTC