Abstract
Data envelopment analysis (DEA) models are tools for efficiency and performance evaluation of a set of decision-making units (DMUs). They are formulated as linear programming problems that have to be solved for each DMU of the given set. The paper discusses problems with solving DEA models and presents an original system written in LINGO modeling language and using MS Excel as the user's interface. This system covers main DEA models including multiplier and envelopment models, models for ranking of DMUs, network models, etc. Depending on the version of the LINGO system the DEA solver can analyze problems from 200 until the unlimited number of DMUs.
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