A Behavioural Model of Choice in the Presence of Decision Conflict

Georgios Gerasimou

No 2013-25, SIRE Discussion Papers from Scottish Institute for Research in Economics (SIRE)

Abstract: This paper proposes a model of choice that does not assume completeness of the decision maker’s preferences. The model explains in a natural way, and within a unified framework of choice when preference-incomparable options are present, four behavioural phenomena: the attraction effect, choice deferral, the strengthening of the attraction effect when deferral is per-missible, and status quo bias. The key element in the proposed decision rule is that an individual chooses an alternative from a menu if it is worse than no other alternative in that menu and is also better than at least one. Utility-maximising behaviour is included as a special case when preferences are complete. The relevance of the partial dominance idea underlying the proposed choice procedure is illustrated with an intuitive generalisation of weakly dominated strategies and their iterated deletion in games with vector payoffs.

Date: 2013
New Economics Papers: this item is included in nep-mic and nep-upt
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