How Individuals Weigh Their Previous Estimates to Make a New Estimate in the Presence or Absence of Social Influence

  • Mohammad S. Jalali
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8393)


Individuals make decisions every day. How they come up with estimates to guide their decisions could be a result of a combination of different information sources such as individual beliefs and previous knowledge, random guesses, and social cues. This study aims to sort out individual estimate assessments over multiple times with the main focus on how individuals weigh their own beliefs vs. those of others in forming their future estimates. Using dynamics modeling, we build on data from an experiment conducted by Lorenz et al. [1] where 144 subjects made five estimates for six factual questions in an isolated manner (no interaction allowed between subjects). We model the dynamic mechanisms of changing estimates for two different scenarios: 1) when individuals are not exposed to any information and 2) when they are under social influence.


Estimate aggregation collective judgment and social influence 


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Mohammad S. Jalali
    • 1
  1. 1.Grado Department of Industrial and Systems EngineeringVirginia Tech Northern Virginia CenterFalls ChurchUSA

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