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Attack and interception in networks
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Bloch, Francis, Chatterjee, Kalyan and Dutta, Bhaskar (2023) Attack and interception in networks. Theoretical Economics, 18 (4). pp. 1511-1546. ISSN 1933-6837.
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Official URL: https://econtheory.org/ojs/index.php/te/article/vi...
Abstract
This paper studies a game of attack and interception in a network, where a single attacker chooses a target and a path, and each node chooses a level of protection. We show that the Nash equilibrium of the game exists and is unique. We characterize equilibrium attack paths and attack distributions as a function of the underlying network and target values. We show that adding a link or increasing the value of a target may harm the attacker - a comparative statics effect which is reminiscent of Braess's paradox in transportation economics. Finally, we contrast the Nash equilibrium with the equilibria of two variations of the model: one where all nodes cooperate in interception and one where nodes update their beliefs and make inspection decisions upon observing the arrival of a suspicious object.
Item Type: | Journal Article | ||||||
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Subjects: | H Social Sciences > HB Economic Theory H Social Sciences > HD Industries. Land use. Labor |
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Divisions: | Faculty of Social Sciences > Economics | ||||||
Library of Congress Subject Headings (LCSH): | Business networks , Game theory., Operations research , Business logistics | ||||||
Journal or Publication Title: | Theoretical Economics | ||||||
Publisher: | Econometric Society | ||||||
ISSN: | 1933-6837 | ||||||
Official Date: | 2023 | ||||||
Dates: |
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Volume: | 18 | ||||||
Number: | 4 | ||||||
Page Range: | pp. 1511-1546 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 8 September 2022 | ||||||
Date of first compliant Open Access: | 8 September 2022 | ||||||
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