Data envelopment analysis with a single DMU: a graphic projected-gradient approach

Article Abstract:

A graphic projected-gradient technique for conducting Data Envelopment Analysis (DEA) with only a single Decision Making Unit (DMU) is presented. DEA is redefined as a graphic-analytical approach in a two-dimensional section of the production possibility set, in agreement with proportional change of inputs and outputs. The differential equation for DEA gradient lines in a two-dimensional section of the DEA production set is obtained, solved and examined. The results show that DEA-gradient line is independent both of other DMUs and of the type of optimization.

Research, Decision support systems

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A method for discriminating efficient candidates with ranked voting data

Article Abstract:

A brief ranking of voting data and its analysis with data envelopment analysis (DEA) is presented. The existing method for discriminating efficient candidates was observed to have a small weakness, which is rectified by the new model, which is based on a very simple idea and is easy to implement visually.

General services, Company systems management, Information management, Voting

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DEA Malmquist productivity measure: new insights with an application to computer industry

Article Abstract:

The data envelopment analysis (DEA) Malmquist productivity model is examined. The productivity measures with relation to computer industry are discussed.

Electronic computers, Production management, Computer industry, Microcomputer industry, Global economy

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