Software > DEAP (Ver 2.1)

A Data Envelopment Analysis (Computer) Program

This page describes the computer program DEAP Version 2.1 which was written by Tim Coelli. This program is used to construct DEA frontiers for the calculation of technical and cost efficiencies and also for the calculation of Malmquist TFP Indices.

The program has three principle DEA options:

  • • Standard CRS and VRS DEA models that involve the calculation of technical and scale efficiencies (where applicable).
  • • The extension of the above models to account for cost and allocative efficiencies.
  • • The application of Malmquist DEA methods to panel data to calculate indices of total factor productivity (TFP) change; technological change; technical efficiency change and scale efficiency change.

All methods are available in either an input or an output orientation (with the exception of the cost efficiencies option). The output from the program includes, where applicable, technical, scale, allocative and cost efficiency estimates; slacks; peers; and TFP indices.

The program is compiled using a Lahey F77LEM/32 compiler for an IBM compatible PC. The program package includes the executable program; data files for four simple examples; and a 47 page user’s guide (in pdf format).

If you wish to obtain a copy of the program you can download the zip file which contains all the necessary files.

If you obtain a copy of the program you are advised to send some brief email to me at so that I am able to advise you of any bugs or new versions.

For a description of DEA methods and the presentation of some worked examples using this software please refer to our recently released second edition of the book: An Introduction to Efficiency and Productivity Analysis.

If you have any technical questions regarding the use of this computer program you can contact me by email at Brief questions (involving less than 10 minutes of time) will be answered as quickly as is possible. A consultancy service is available for those who have more lengthy enquiries. Consultancy fees will be provided on request.


Prof. Tim Coelli