Changes: Productivity and profitability change indices

In productivity: Indices of Productivity Using Data Envelopment Analysis (DEA)

Description

This function extracts individual productivity and profitability (when available) change indices from any object created by either fareprim, fisher, hicksmoorsteen, laspeyres, lowe, malm, or paasche function.

Usage

Changes(object, ...)

Arguments

object	Object of class 'FarePrimont', 'Fisher', 'HicksMoorsteen', 'Laspeyres', 'Lowe', 'Malmquist', or 'Paasche'.
...	Currently not used.

Details

• An object of class 'FarePrimont' is a result of a call to fareprim.

• An object of class 'Fisher' is a result of a call to fisher.

• An object of class 'HicksMoorsteen' is a result of a call to hicksmoorsteen.

• An object of class 'Laspeyres' is a result of a call to laspeyres.

• An object of class 'Lowe' is a result of a call to lowe.

• An object of class 'Malmquist' is a result of a call to malm.

• An object of class 'Paasche' is a result of a call to paasche.

Value

• In the case of F<c3><a4>re-Primont, Fisher, Laspeyres, Lowe, Malmquist, and Paasche indices, the function returns a data frame containing all the elements and observations included in the "Changes" component of object.

• In the case of Hicks-Moorsteen index:

  • When components = FALSE (default) in the call to hicksmoorsteen, the function returns a data frame containing all the elements and observations included in the "Changes" component of the object of class 'HicksMoorsteen'.

  • When components = TRUE in the call to hicksmoorsteen, the function returns a list of three data frames:

    * HicksMoorsteen:

    A data frame containing all the elements and observations related to "Changes" component of the Hicks-Moorsteen index.

    * MalmquistHS:

    A data frame containing all the elements and observations related to "Changes" component of the Malmquist-hs index.

    * MalmquistIT:

    A data frame containing all the elements and observations related to "Changes" component of the Malmquist-it index.

Author(s)

Yann Desjeux, K Herv<c3><a9> Dakpo, Laure Latruffe

See Also

For details and information on returned values, see fareprim, fisher, hicksmoorsteen, laspeyres, lowe, malm, or paasche.

See also:
- Levels for productivity and profitability levels; and
- Shadowp for shadow prices.

Examples

## Not run: 
  FAREPRIM <- fareprim(data = usagri, id.var = "States", time.var = "Years", 
  x.vars = c("q.capital", "q.land","q.labor","q.materials"), y.vars = c("q.livestock", 
  "q.crop", "q.other"), w.vars = c("p.capital", "p.land", "p.labor", "p.materials"), 
  p.vars = c("p.livestock", "p.crop", "p.other"))
  Fareprim.change <- Changes(FAREPRIM)
  head(Fareprim.change)

## End(Not run)

Example output

* Please cite the 'productivity' package as:
  Dakpo K.H., Desjeux Y. and Latruffe L. (2018). productivity: Indices of Productivity and Profitability Using Data Envelopment Analysis (DEA). R package version 1.1.0.

See also: citation("productivity")

* For any questions, suggestions, or comments on the 'productivity' package, please make use of Tracker facilities at:
  https://r-forge.r-project.org/projects/productivity/

Loading required package: foreach
Loading required package: iterators
Loading required package: parallel

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DONE!        

  States Years dREV dCOST dPROF dP dW dTT dAO dAI dTFP dMP dTFPE dOTE dOSE dOME
1     AL  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
2     AR  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
3     AZ  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
4     CA  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
5     CO  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
6     CT  1995    1     1     1  1  1   1   1   1    1   1     1    1    1    1
  dROSE dOSME dRME
1     1     1    1
2     1     1    1
3     1     1    1
4     1     1    1
5     1     1    1
6     1     1    1

productivity documentation built on May 2, 2019, 4:44 p.m.