Basic Concepts: Difference between revisions

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==Probability Judgment==  
==Probability Judgment==  


----
===The Methods of Behavioral Economics===
*They define themselves, not on the basis of the research methods that they employ, but rather their application of psychological insights to economics.
===Heuristic Mechanism===
===Heuristic Mechanism===
;Availability heuristic
*Availability heuristic
;;<b>"people may judge the probabilities of future events based on how easy those events are to imagine or to retrieve from memory" </b>  
**people may judge the probabilities of future events based on how easy those events are to imagine or to retrieve from memory" </b>  
;Hindsight bias
*Hindsight bias
;;<b>"Because events which actually occurred are easier to imagine than counterfactual events that did not, people often overestimate the probability they previously attached to events which later happened" </b>
**"Because events which actually occurred are easier to imagine than counterfactual events that did not, people often overestimate the probability they previously attached to events which later happened"  
;Curse of Knowledge bias  
*Curse of Knowledge bias  
;;<b>"people who know a lot find it hard to imagine how little others know </b>
**"people who know a lot find it hard to imagine how little others know  
*Representativeness
**"People judge conditional probabilities like P(hypothesis|data) or P(examples| class) by how well the data represents the hypothesis or the example represents the class.
**<b> Law of Small Numbers </b>
*** "Small samples are thought to represent the properties of the statistical process that generate them"

Revision as of 01:52, 2 May 2007

Basic Concepts

Probability Judgment


The Methods of Behavioral Economics

  • They define themselves, not on the basis of the research methods that they employ, but rather their application of psychological insights to economics.

Heuristic Mechanism

  • Availability heuristic
    • people may judge the probabilities of future events based on how easy those events are to imagine or to retrieve from memory"
  • Hindsight bias
    • "Because events which actually occurred are easier to imagine than counterfactual events that did not, people often overestimate the probability they previously attached to events which later happened"
  • Curse of Knowledge bias
    • "people who know a lot find it hard to imagine how little others know
  • Representativeness
    • "People judge conditional probabilities like P(hypothesis|data) or P(examples| class) by how well the data represents the hypothesis or the example represents the class.
    • Law of Small Numbers
      • "Small samples are thought to represent the properties of the statistical process that generate them"