Andrea Galeotti
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View article: Robust Market Interventions
Robust Market Interventions Open
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 po…
View article: Taxes and Market Power: A Principal Components Approach
Taxes and Market Power: A Principal Components Approach Open
Suppliers of differentiated goods make simultaneous pricing decisions, which are strategically linked. Because of market power, the equilibrium is inefficient. We study how a policymaker should target a budget-balanced tax-and-subsidy poli…
View article: Discord and Harmony in Networks
Discord and Harmony in Networks Open
Consider a coordination game played on a network, where agents prefer taking actions closer to those of their neighbors and to their own ideal points in action space. We explore how the welfare outcomes of a coordination game depend on net…
View article: Rotation as Contagion Mitigation
Rotation as Contagion Mitigation Open
To prevent the spread of an infection, an organization obeys social distancing restrictions and thus limits the number of its members physically present on a given day. We study rotation schemes in which mutually exclusive groups are activ…
View article: Market segmentation through information
Market segmentation through information Open
An information designer has precise information about consumers' preferences over products sold by oligopolists. The designer chooses what information to reveal to differentiated firms who, then, compete on price by making personalized off…
View article: Targeting Interventions in Networks
Targeting Interventions in Networks Open
We study games in which a network mediates strategic spillovers and externalities among the players. How does a planner optimally target interventions that change individuals' private returns to investment? We analyze this question by deco…
View article: The role of networks in antitrust investigations
The role of networks in antitrust investigations Open
Antitrust investigations typically focus on the competitive pressures coming from within the defined markets of interest. However, competitive pressures can also come from other markets. Even when individually these markets place only weak…
View article: Selling through referrals
Selling through referrals Open
We endogenize intermediaries' choice to operate as agents or merchants in a market where there are frictions due to asymmetric information about consumption values. A seller has an object for sale and can reach buyers only through intermed…
View article: Trading in Networks: Theory and Experiments
Trading in Networks: Theory and Experiments Open
We propose a model of posted prices in networks. The model maps traditional concepts of market power, competition, and double marginalization into networks, allowing for the study of pricing in complex structures of intermediation, such as…
View article: Financial Linkages, Portfolio Choice and Systemic Risk
Financial Linkages, Portfolio Choice and Systemic Risk Open
Financial linkages smooth the shocks faced by individual components of the system, but they also create a wedge between ownership and decision-making. The classical intuition on the role of pooling risk in raising welfare is valid when own…
View article: Information aggregation and optimal structure of the executive
Information aggregation and optimal structure of the executive Open
We provide a novel model of executives in parliamentary democracies that accounts for key features of these institutions: decision-making authority is assigned to in-dividual ministers; and policy relevant information is aggregated through…