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Deterrence and Risk Preferences in Sequential Attacker-Defender Games with Continuous Efforts.

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This summary is machine-generated.

Understanding player risk preferences is crucial for effective deterrence strategies. This study shows that accounting for risk-seeking or risk-averse behavior in attacker-defender models can significantly improve optimal defense investments and enhance security outcomes.

Keywords:
Attacker-defender gameshomeland securityrisk aversionrisk-seeking behavior

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Area of Science:

  • Game Theory
  • Behavioral Economics
  • Security Studies

Background:

  • Traditional attacker-defender models often assume risk neutrality, which may not reflect real-world decision-making.
  • Risk preferences (seeking or aversion) can influence strategic choices in security scenarios.
  • Deterrence effectiveness is a key concern in security and defense investment.

Purpose of the Study:

  • To analyze the impact of attacker and defender risk preferences on equilibrium behavior in security games.
  • To investigate how risk preferences affect optimal defense investment levels and overall deterrence.
  • To identify scenarios where incorporating risk preferences offers advantages over traditional risk-neutral models.

Main Methods:

  • Development of a single-period, sequential attacker-defender game model.
  • Inclusion of a continuous range of strategic investment levels for the defender.
  • Analytical derivations and numerical illustrations to explore the effects of risk preferences.
  • Sensitivity analysis on investment levels and defender's beliefs about attacker risk preferences.

Main Results:

  • Risk preferences of both attackers and defenders demonstrably alter optimal defense strategies and deterrence levels.
  • Specific conditions exist where a defender employing a risk-preference-aware model achieves superior outcomes compared to a risk-neutral approach.
  • The study quantifies the influence of risk preferences on the defender's optimal effort and the resulting deterrence.

Conclusions:

  • Risk preferences are a critical factor in designing effective security and deterrence strategies.
  • Models that incorporate player risk preferences can provide more accurate predictions and better decision-making support for security investments.
  • Policy analysts and decision-makers can leverage these insights for more robust security planning and resource allocation.