Airlines {deaR}

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(s)

Vicente Coll-Serrano ([e-mail]). Quantitative Methods for Measuring Culture (MC2). Applied Economics.

Vicente Bolos ([e-mail]). Department of Business Mathematics

Rafael Benitez ([e-mail]). Department of Business Mathematics

University of Valencia (Spain)

Source

Coelli, T.; Griffel-Tatje, E.; Perelman, S. (2002). "Capacity Utilization and Profitability: A Decomposition of Short-Run Profit Efficiency", International Journal of Production Economics 79, 261–278.

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)