Directional Revision under Two-Horizon Deliberation: A Revealed-Preference Analysis

2026-08-24

AI Summary

研究了决策者在强调某一维度后果的深思熟虑干预前后的行为，通过路径独立性和二维优势规则分析了普通选择和充分考虑后的选择。

Abstract

We study deterministic choice when the same decision maker is observed before and after a deliberative intervention that makes one of two fixed ordinal consequence dimensions more salient. Both choice modes are path independent. Ordinary choice respects two-dimensional dominance, while any binary reversal under fuller deliberation must favor the alternative that is strictly better on the emphasized dimension. We characterize exactly the admissible ordinary and full-horizon rankings. The characterization yields a protected partial order, sharp pairwise and menu-level identification, a signed restriction on menu-level choice changes, and an acyclicity test for incomplete observations. With an ordered sequence of deliberative modes, choices from any fixed menu form a monotone tradeoff path: every switch improves the emphasized dimension, worsens the other dimension, and an abandoned alternative cannot reappear. When the emphasized consequence order is strict, the admissible rankings have an equivalent Kemeny-Kendall representation. The framework is ordinal: it requires neither a cardinal tradeoff nor lexicographic priority, and it applies whenever deliberation gives greater emphasis to one of two fixed consequence dimensions.

Problem

• deterministic choice
• deliberative intervention
• ordinal consequence dimensions
• path independence
• Kemeny-Kendall representation

Innovation

• Directional Revision
• Two-Horizon Deliberation
• Revealed-Preference Analysis
• Monotone Tradeoff Path