276. Multi-criteria decision-making for others: How anchoring effects change based on who guides the interaction
Invited abstract in session MC-61: Advances in behavioral decision analysis 2, stream Behavioural OR.
Monday, 12:30-14:00Room: Maurice Keyworth G.31
Authors (first author is the speaker)
| 1. | Maura Halstead
|
| University of Manchester | |
| 2. | Manuel López-Ibáñez
|
| University of Manchester | |
| 3. | George Farmer
|
| Division of Neuroscience & Experimental Psych, University of Manchester | |
| 4. | Paul Warren
|
| University of Manchester |
Abstract
A person can use their own or someone else's preferences to make multi-criteria decisions. Consider interactive Goal Programming (IGP), where the person uses a goal to find solutions. They are expected to continuously change this goal based on the solutions found until they find their most preferred solution (MPS). A person could use IGP with their own or a client's goals. Despite this common occurrence, we currently do not know how the preference source would influence such decision-making processes.
IGP begins with an initial goal and solution that the person should review to make subsequent decisions. This process resembles anchoring from the psychology of judgment of decision-making, where an initial number can influence the person's next decision even if they are unrelated. In previous behavioral experiments, we have found robust evidence that anchoring occurs in IGP. This research focuses on preference sources and how they could alter anchoring behavior. In a behavioral experiment with 128 participants, we found evidence of IGP anchoring when participants used their own or client preferences. Furthermore, against expectations, we found that participants anchored more when they used their client's preferences. These findings suggest that preference source is an important consideration when designing and implementing methods.
Keywords
- Behavioural OR
Status: accepted
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