Experimental consideration of preference in decision making under certainty

Experimental consideration of preference in decision making under certainty

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Article ID: iaor1996585
Country: United Kingdom
Volume: 4
Issue: 2
Start Page Number: 107
End Page Number: 121
Publication Date: Jun 1995
Journal: Journal of Multi-Criteria Decision Analysis
Authors: ,
Keywords: behaviour
Abstract:

This paper describes an experiment in decision making under certainty with multiple, conflicting objectives and continuous decision variables. Two techniques for analysing such problems are considered: one taken from the paradigm of multicriteria decision making ( MCDM), a non-directed approach called the NAIVe technique, and one from the paradigm of multiattribute decision analysis (D/A), the SMART technique. While the two techniques seek and are thought to arrive at the same end-a solution which is in some sense optimal for the decision maker (DM)-the former approach implicitly incorporates DM preferences while the latter approach considers preferences explicitly. The setting is a laboratory study using a sample of university students on a three-criteria problem which is designed to study the extent to which value functions implied/assessed by the techniques are consistent with DMs’ holistic ranking of alternatives. Results show that (1) the two techniques of interest show significantly better rank order correlation with holistic judgement compared with other techniques, (2) DMs prefer the non-directed MCDM approach and (3) subjects break down into two groups: those that use assessable value functions when ranking and those that do not. This implies that for small-dimensioned problems DMs may first need to be classified as to the assessability of their value functions before a solution method is chosen.

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