The Political Economy of Zero‐Sum Thinking
从战略角度解释选举中的零和思维，发现信息不对称和分配因素使多数选民支持违背自身偏好和信息的政策，并识别了零和思维在均衡中盛行的必要条件。
This paper offers a strategic rationale for zero‐sum thinking in elections. We show that asymmetric information and distributional considerations together make voters wary of policies supported by others. This force impels a majority of voters to support policies contrary to their preferences and information. Our analysis identifies and interprets a form of “adverse correlation” that is necessary and sufficient for zero‐sum thinking to prevail in equilibrium.