Local dominance

We define notions of dominance between two actions in a dynamic game. Local dominance considers players who have a blurred view of the future and compare the two actions by first focusing on the outcomes that may realize at the current stage. When considering the possibility that the game may contin...

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Bibliographic Details
Main Authors: CATONINI, Emiliano, XUE, Jingyi
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2023
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Online Access:https://ink.library.smu.edu.sg/soe_research/2491
https://ink.library.smu.edu.sg/context/soe_research/article/3490/viewcontent/Local_dominance_April_12_2023.pdf
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Institution: Singapore Management University
Language: English
Description
Summary:We define notions of dominance between two actions in a dynamic game. Local dominance considers players who have a blurred view of the future and compare the two actions by first focusing on the outcomes that may realize at the current stage. When considering the possibility that the game may continue, they can only check that the local comparison is not overturned under the assumption of "continuing in the same way" after the two actions (in a newly defined sense). Despite the lack of forward planning, local dominance solves dynamic mechanisms that were found easy to play and implements social choice functions that cannot be implemented in obviously-dominant strategies.