理论论文

理论论文

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Rational Misspecification: Framework and Applications

理性误设:框架与应用

American Economic Journal: Microeconomics · 2026, 18(3) · Ran Eilat、Kfir Eliaz ·

未归类D 微观经济学

本文提出一个框架,用以评估存在误设的决策者是否愿意为那些可能使其误设程度减轻的信息付费。我们引入一种不依赖先验的方法,该方法基于“受约束的”最大遗憾,用以推导决策者对获取更准确模型之潜在收益的主观评估的上界。该约束源于决策者当前可获得的信息。我们将该方法应用于三个著名的误设信念模型:粗糙预期、因果误判与抽样均衡。(JEL D83, D84, D91)

英文原文

This paper proposes a framework for assessing whether misspecified decision-makers would be willing to pay for information that can potentially make them less misspecified. We introduce a prior-free approach, based on “constrained” maximal regret, to derive an upper bound on the subjective assessment of potential gains from acquiring a more accurate model. The constraint stems from the information currently available to the decision-maker. We apply our approach to three prominent models of misspecified beliefs: coarse expectations, causal misperceptions, and sampling equilibria. (JEL D83, D84, D91)

Sequential Protest Formation

序贯抗议的形成

American Economic Journal: Microeconomics · 2026, 18(3) · Benjamin Matta ·

公共治理政治经济学与选举

人们参与抗议,尽管参与有成本、收益并非由参与者独享,且每个人都不太可能具有决定性。基于这些特征,我提出一个抗议形成的序贯模型,其中参与机会随机到来,当参与超过某一阈值时抗议即告成功。我证明唯一均衡的存在性并刻画其动态。若唯一均衡涉及参与行为,则随着抗议的推进,各参与决策之间的时间间隔会缩短——这一模式已在实证中被观察到。若一名获得机会的参与者在选择放弃后,抗议很可能在下一个机会到来之前结束,则该参与者便成为序贯意义上的关键人物。(JEL D72, D84, D91)

英文原文

People participate in protests even though it is costly, benefits are not exclusive to participants, and each individual is unlikely to be pivotal. Building on these characteristics, I propose a sequential model of protest formation where opportunities to participate arrive stochastically, and the protest succeeds if participation surpasses a threshold. I show a unique equilibrium exists and characterize its dynamics. If the unique equilibrium involves participation, the time between participation decisions shortens as the protest progresses—a pattern observed empirically. A player with an opportunity becomes sequentially pivotal if, after abstaining, the protest will likely end before another opportunity arrives. (JEL D72, D84, D91)

Higher-Order Beliefs and (Mis)learning from Prices

高阶信念与从价格中(误)学习

American Economic Journal: Microeconomics · 2026, 18(3) · Kevin He、Jonathan Libgober ·

未归类D 微观经济学

我们研究不完全信息古诺双寡头博弈中私人信号相关性的误判。当参与者对价格弹性持有灵活信念时,夸大各方需求信号之间的相关性是有益的;而当其信念教条式地正确时,这种夸大则是有害的。对于通过观察价格学习弹性的灵活信念参与者而言,相关性误判会经由弹性误推断间接扭曲行为。若参与者知晓真实弹性,这一学习渠道便被消除。相关性误判对行为具有方向相反的直接效应与间接效应,因此弹性推断的存在可能逆转某一错误的存续性。(JEL C72, D21, D43, D81, D82, D83)

英文原文

We study misperceptions of private-signal correlation in an incomplete-information Cournot duopoly game. Exaggerating the correlation between players' demand signals is beneficial when agents hold flexible beliefs about price elasticity but is harmful when their beliefs are dogmatically correct. For agents with flexible beliefs who learn elasticity by observing prices, correlation misperceptions indirectly distort behavior through elasticity misinference. If agents know the true elasticity, this learning channel is eliminated. Correlation misperceptions have opposite direct and indirect effects on behavior, so the presence of elasticity inference can reverse an error's viability. (JEL C72, D21, D43, D81, D82, D83)

Optimal Design of Market Access

市场准入的最优设计

American Economic Journal: Microeconomics · 2026, 18(3) · Takuro Yamashita、Shuguang Zhu ·

未归类L 产业组织

本文研究数据提供者的最优设计与销售营销名单问题,这些名单使拥有私人类型的零售商能够接触具有异质性特征的消费者。当虚拟价值满足一种特定形式的凸性(称为边界占优)时,在一定正则条件下,无论零售商的类型是纵向排序还是横向排序,最优机制均包含完全揭示的营销名单。此外,在纵向情形下,最优机制允许一种简单的“固定价格”实施方式;在横向情形下,它具有无排斥与旋转性质。反之,若边界占优不成立,最优机制可能并非完全揭示。(JEL D82, L81, M31)

英文原文

We study a data provider's problem of optimally designing and selling marketing lists that enable a retailer with private types to access consumers with heterogeneous characteristics. When virtual values satisfy a particular form of convexity (named boundary dominance), under certain regularity conditions, the optimal mechanism comprises fully revealing marketing lists, irrespective of whether the retailer's types are vertically or horizontally ordered. Moreover, in the vertical case, the optimal mechanism allows a simple “fixed-price” implementation. In the horizontal case, it exhibits no-exclusion and rotation properties. Conversely, if boundary dominance is violated, the optimal mechanism may not be fully revealing. (JEL D82, L81, M31)

Collusion by Exclusion in Public Procurement

公共采购中的排斥性合谋

American Economic Journal: Microeconomics · 2026, 18(3) · Regina Seibel、Samuel Škoda ·

产业·创新·创业财政支出与体制市场规制与反垄断政府采购

本文研究存在竞标者预选的拍卖中的串通投标行为。我们构建一个理论模型来分析部分串通卡特尔的最优行为,并展示常用的两阶段拍卖形式——其中第一阶段用于预选竞标者——可能如何被利用。基于理论结果,我们构建了反映卡特尔最优策略的合谋标记,并利用斯洛伐克公共采购拍卖的行政数据,识别出涉嫌合谋的竞标者。我们表明,竞标者预选使卡特尔得以排除具有竞争力的对手,从而将采购成本提高到没有预选时所能达到的水平之上。(JEL D43, D44, H57, L12)

英文原文

This paper studies bid rigging in auctions with bidder preselection. We develop a theoretical model to analyze the optimal behavior of partial bid-rigging cartels and show how commonly used two-stage auction formats, in which the first stage is used to preselect bidders, may be exploited. Based on our theoretical results, we construct a collusion marker reflecting the optimal cartel strategy and, using administrative data on public procurement auctions in Slovakia, we identify bidders suspected of collusion. We show that bidder preselection allows cartels to exclude competitive rivals and thereby increase procurement costs above what would be possible without preselection. (JEL D43, D44, H57, L12)