标题： 稳健的市场干预 显示英文标题

标题： Robust Market Interventions

摘要： 在什么情况下可以设计出能够稳健地增加剩余的市场干预措施——即以高概率考虑由于对经济基本要素信息不精确带来的不确定性？ 在一个有许多具有某些市场力量的战略公司的环境中，我们提出了存在此类干预的条件。 关键条件是可恢复结构，它要求产品家族之间存在大规模的互补性。 分析是通过将干预的发生情况分解为斯勒茨基矩阵的主要成分来完成的。 在可恢复结构下，该矩阵的一个噪声信号足以揭示这些主要成分，从而设计出稳健的干预措施。 我们的结果展示了谱方法在分析具有许多参与者的不完全观测战略互动中的有用性。 显示英文摘要

摘要： When can interventions in markets be designed to increase surplus robustly -- i.e., with high probability -- accounting for uncertainty due to imprecise information about economic primitives? In a setting with many strategic firms, each possessing some market power, we present conditions for such interventions to exist. The key condition, recoverable structure, requires large-scale complementarities among families of products. The analysis works by decomposing the incidence of interventions in terms of principal components of a Slutsky matrix. Under recoverable structure, a noisy signal of this matrix reveals enough about these principal components to design robust interventions. Our results demonstrate the usefulness of spectral methods for analyzing imperfectly observed strategic interactions with many agents.