Airlines {deaR} | R Documentation |
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 (vicente.coll@uv.es). Quantitative Methods for Measuring Culture (MC2). Applied Economics.
Vicente Bolos (vicente.bolos@uv.es). Department of Business Mathematics
Rafael Benitez (rafael.suarez@uv.es). 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
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)