deaR (version 1.4.1)

Airlines: Data: Coelli, Grifell-Tatje, and Perelman (2002).

Description

Data of 28 airlines with 2 outputs and 4 inputs.

Usage

data("Airlines")

Format

Data frame with 28 rows and 7 columns. Definition of outputs (Y) and inputs (X):

y1 = Pass

Passenger-kilometers flown

y2 = Cargo

Freight tonne-kilometers flown

x1 = Lab

Labor (number of employees)

x2 = Fuel

Fuel (millions of gallons)

x3 = Matl

Other inputs (millions of U.S. dollar equivalent) consisting of operating and maintenance expenses excluding labor and fuel expenses

x4 = Cap

Capital (sum of the maximum takeoff weights of all aircraft flown multiplied by the number of days flown)

Author

Vicente Coll-Serrano (). Quantitative Methods for Measuring Culture (MC2). Applied Economics.

Vicente Bolos (). Department of Business Mathematics

Rafael Benitez (). Department of Business Mathematics

University of Valencia (Spain)

See Also

make_deadata, model_sbmeff

Examples

# Example. Replication of results in Aparicio et al. (2007).
data("Airlines")
data_example <- make_deadata(Airlines,
                             inputs = 4:7,
                             outputs = 2:3)
result <- model_sbmeff(data_example)
efficiencies(result)
result2 <- model_sbmeff(data_example,
                        kaizen = TRUE)
efficiencies(result2)