Changes: Productivity and profitability change indices

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/auxiliaries.R

Description

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

Usage

1
Changes(object, ...)

Arguments

object

Object of class 'FarePrimont', 'Fisher', 'Laspeyres', 'Lowe', 'Malmquist', or 'Paasche'.

...

Currently not used.

Details

Value

The function returns a data frame containing all the elements and observations included in the "Changes" constituent element of object.

Author(s)

Yann Desjeux, K Hervé Dakpo, Laure Latruffe

See Also

For details and information on returned values, see fareprim, fisher, laspeyres, lowe, malm, or paasche.
See also:
- Levels for productivity and profitability levels; and
- Shadowp for shadow prices.

Examples

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## Not run: 
  PAASCHE <- paasche(data = usagri, id.var = "States", time.var = "Years", x.vars = c(7:10), 
  y.vars = c(4:6), w.vars = c(14:17), p.vars = c(11:13), scaled = TRUE)
    Paasche.change <- Changes(PAASCHE)
    summary(Paasche.change)

## End(Not run)

Example output

* Please cite the 'productivity' package as:
  Dakpo K.H., Desjeux Y. and Latruffe L. (2017). productivity: Indices of Productivity and Profitability Using Data Envelopment Analysis (DEA). R package version 1.0.0.

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: slam
Using the GLPK callable library version 4.52
Loading required package: foreach
Loading required package: iterators
Loading required package: parallel

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DONE!          

     States        Years           dREV            dCOST       
 AL     : 10   Min.   :1995   Min.   :0.8183   Min.   :0.7953  
 AR     : 10   1st Qu.:1997   1st Qu.:0.9700   1st Qu.:0.9749  
 AZ     : 10   Median :2000   Median :1.0286   Median :1.0176  
 CA     : 10   Mean   :2000   Mean   :1.0328   Mean   :1.0232  
 CO     : 10   3rd Qu.:2002   3rd Qu.:1.0878   3rd Qu.:1.0633  
 CT     : 10   Max.   :2004   Max.   :1.3754   Max.   :1.3146  
 (Other):420                  NA's   :48       NA's   :48      
     dPROF              dP               dW              dTT        
 Min.   :0.6798   Min.   :0.7942   Min.   :0.7710   Min.   :0.7035  
 1st Qu.:0.9383   1st Qu.:0.9394   1st Qu.:0.9849   1st Qu.:0.9221  
 Median :1.0132   Median :1.0208   Median :1.0272   Median :0.9836  
 Mean   :1.0134   Mean   :1.0193   Mean   :1.0302   Mean   :0.9923  
 3rd Qu.:1.0831   3rd Qu.:1.0890   3rd Qu.:1.0668   3rd Qu.:1.0595  
 Max.   :1.3931   Max.   :1.2891   Max.   :1.3694   Max.   :1.4138  
 NA's   :48       NA's   :48       NA's   :48       NA's   :48      
      dAO              dAI              dTFP            dMP        
 Min.   :0.8052   Min.   :0.8507   Min.   :0.818   Min.   :0.9049  
 1st Qu.:0.9683   1st Qu.:0.9695   1st Qu.:0.982   1st Qu.:1.0021  
 Median :1.0186   Median :0.9952   Median :1.019   Median :1.0312  
 Mean   :1.0164   Mean   :0.9936   Mean   :1.023   Mean   :1.0232  
 3rd Qu.:1.0630   3rd Qu.:1.0158   3rd Qu.:1.065   3rd Qu.:1.0546  
 Max.   :1.2249   Max.   :1.1259   Max.   :1.200   Max.   :1.1748  
 NA's   :48       NA's   :48       NA's   :48      NA's   :48      
     dTFPE             dOTE             dOSE             dRAE       
 Min.   :0.8153   Min.   :0.8046   Min.   :0.8407   Min.   :0.8184  
 1st Qu.:0.9476   1st Qu.:0.9805   1st Qu.:0.9959   1st Qu.:0.9553  
 Median :0.9902   Median :1.0000   Median :1.0000   Median :1.0000  
 Mean   :1.0021   Mean   :1.0031   Mean   :1.0019   Mean   :1.0035  
 3rd Qu.:1.0530   3rd Qu.:1.0229   3rd Qu.:1.0057   3rd Qu.:1.0357  
 Max.   :1.2777   Max.   :1.2100   Max.   :1.2547   Max.   :1.2538  
 NA's   :48       NA's   :48       NA's   :48       NA's   :48      
     dROSE            dOSME             dRME             dRE        
 Min.   :0.7539   Min.   :0.7553   Min.   :0.7553   Min.   :0.7519  
 1st Qu.:0.9645   1st Qu.:0.9439   1st Qu.:0.9410   1st Qu.:0.9545  
 Median :1.0000   Median :0.9954   Median :0.9933   Median :1.0000  
 Mean   :0.9991   Mean   :1.0012   Mean   :1.0001   Mean   :1.0054  
 3rd Qu.:1.0424   3rd Qu.:1.0575   3rd Qu.:1.0555   3rd Qu.:1.0492  
 Max.   :1.2781   Max.   :1.3179   Max.   :1.3138   Max.   :1.3096  
 NA's   :48       NA's   :48       NA's   :48       NA's   :48      

productivity documentation built on Dec. 29, 2017, 3:01 a.m.