Egidi, Massimo (2003) Decomposition patterns in problem solving. UNSPECIFIED. (Unpublished)
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Abstract
The paper develops a theory of biases in decision making. Discovering a strategy for solving a game is a complex problem that may be solved by decomposition; a player decomposing a problem into many simple sub-problems may easily identify the optimal solution to each sub-problem: however it is shown that even though all partial solutions are optimal, the solution to the global problem may be largely sub-optimal. The conditions under which a decomposition process gives rise to a sub-optimal solution are explored, and it is shown that the sub-optimalities ultimately originate from the process of categorization that governs the creation of a decomposition pattern. Decisions based on a strategy discovered by decomposition are therefore frequently biased . The persistence of biased behaviours, observed in many experiments, is explained by showing the stability of different and non optimal representations of the same problem. An application to a simplified version of Rubik cube is finally developed.
Item Type: | Departmental Technical Report |
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Department or Research center: | CEEL (Computable and Experimental Economics Laboratory) |
Subjects: | H Social Sciences > HB Economic Theory |
Report Number: | 3 |
Repository staff approval on: | 14 Jan 2011 |
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