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# DataEnvelopmentAnalysis.jl
![DataEnvelopmentAnalysis logo](docs/src/assets/wordmark.svg "DataEnvelopmentAnalysis logo")

A Julia package for efficiency and productivity measurement using Data Envelopment Analysis (DEA)

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DataEnvelopmentAnalysis.jl is a Julia package that provides functions for efficiency and productivity measurement using Data Envelopment Analysis (DEA). Particularly, it implements a variety of technical efficiency models, economic efficiency models and productivity change models.

The package is being developed for Julia `1.0` and above on Linux, macOS, and Windows.

The packes uses internally the [JuMP]( modelling language for mathematicall optimization with solvers [GLPK]( and [Ipopt](

## Installation

The package can be installed with the Julia package manager:
julia> using Pkg; Pkg.add("DataEnvelopmentAnalysis")

## Available models

**Technical efficiency DEA models**

* Radial input and output oriented model.
* Directional distance function model.
* Additive models: weighted additive model, measure of inefficiency proportions (MIP), normalized weighted additive model, range adjusted measure (RAM), bounded adjusted measure (BAM).
* Generalized distance function model.
* Russell graph and oriented model.
* Enhanced Russell Graph Slack Based Measure.
* Modified directional distance function.
* Hölder distance function.
* Reverse directional distance function.

**Economic efficiency DEA models**

* Cost model.
* Revenue model.
* Profit model.
* Profitability model.

**Productivity change models**

* Mamlmquist index.

## Authors

DataEnvelopmentAnalysis.jl is being developed by [Javier Barbero]( and [José Luis Zofío](
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