Evaluation of information technology investment: a data envelopment analysis approach

Evaluation of information technology investment: a data envelopment analysis approach

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Article ID: iaor20071607
Country: United Kingdom
Volume: 33
Issue: 5
Start Page Number: 1368
End Page Number: 1379
Publication Date: May 2006
Journal: Computers and Operations Research
Authors: , , ,
Keywords: information, statistics: data envelopment analysis
Abstract:

The increasing use of information technology (IT) has resulted in a need for evaluating the productivity impacts of IT. The contemporary IT evaluation approach has focused on return on investment and return on management. IT investment has impacts on different stages of business operations. For example, in the banking industry, IT plays a key role in effectively generating (i) funds from the customer in the forms of deposits and then (ii) profits by using deposits as investment funds. Existing approaches based upon data envelopment analysis (DEA) only measure the IT efficiency or impact on one specific stage when a multi-stage business process is present. A detailed model is needed to characterize the impact of IT on each stage of the business operation. The current paper develops a DEA non-linear programming model to evaluate the impact of IT on multiple stages along with information on how to distribute the IT-related resources so that the efficiency is maximized. It is shown that this non-linear program can be treated as a parametric linear program. It is also shown that if there is only one intermediate measure, then the non-linear DEA model becomes a linear program. Our approach is illustrated with an example taken from previous studies.

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