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A Network Formation Model Based on Subgraphs

Arun G. Chandrasekhar and Matthew O. Jackson

We develop a new class of random graph models for the statistical estimation of network formation—subgraph generated models (SUGMs). Various subgraphs—e.g., links, triangles, cliques, stars—are generated and their union results in a network. We show that SUGMs are identified and establish the consistency and asymptotic distribution of parameter estimators in empirically relevant cases. We show that a simple four-parameter SUGM matches basic patterns in empirical networks more closely than four standard models (with many more dimensions).

Simultaneous Search and Adverse Selection

Sarah Auster, Piero Gottardi, and Ronald Wolthoff

We study the effect of diminishing search frictions in markets with adverse selection by presenting a model in which agents with private information can simultaneously contact multiple trading partners. We highlight a new trade-off: facilitating contacts reduces coordination frictions but also the ability to screen agents’ types. We find that, when agents can contact sufficiently many trading partners, fully separating equilibria obtain only if adverse selection is sufficiently severe. When this condition fails, equilibria feature partial pooling and multiple equilibria co-exist.

Affiliated Common Value Auctions with Costly Entry

Pauli Murto and Juuso Välimäki

Many auctions and procurement contests entail nontrivial bidding costs, which makes the bidders’ participation decisions endogenous to the auction design. We analyze the effect of different auction rules on potential bidders’ incentives to participate. We focus on first-price auctions with affiliated common values and a large pool of potential bidders. Our main interest is on auctions where the realized number of bidders is unknown at the bidding stage.

Industrial Policy Implementation: Empirical Evidence from China’s Shipbuilding Industry

Panle Jia Barwick, Myrto Kalouptsidi, and Nahim Bin Zahur

Industrial policies are widely used across the world. In practice, designing and implementing these policies is a complicated task. In this paper, we assess the long-term performance of different industrial policy instruments, which include production subsidies, investment subsidies, entry subsidies, and consolidation policies. To do so, we examine a recent industrial policy in China aiming to propel the country’s shipbuilding industry to the largest globally.

Arbitration with Uninformed Consumers

Mark Egan, Gregor Matvos, and Amit Seru

This paper studies the impact of the arbitrator selection process on consumer outcomes. Using data from consumer arbitration cases in the securities industry over the past two decades, where we observe detailed information on case characteristics, the randomly generated list of potential arbitrators presented to both parties, the selected arbitrator, and case outcomes, we establish several motivating facts. These facts suggest that firms hold an informational advantage over consumers in selecting arbitrators, resulting in industry-friendly arbitration outcomes.

“Bid Shopping” in Procurement Auctions with Subcontracting

Raymond Deneckere and Daniel Quint

We analyze the equilibrium effects of “bid shopping” – a contractor soliciting a subcontractor bid for part of a project prior to a procurement auction, then showing that bid to a competing subcontractor in an attempt to secure a lower price. Such conduct is widely criticized as unethical by professional organizations, and has been the target of legislation at both the federal and state level, but is widespread in procurement auctions in many places.

A Theory of Cash Flow-Based Financing with Distress Resolution

Barney Hartman-Glaser, Simon Mayer, and Konstantin Milbradt

We develop a dynamic contracting theory of asset- and cash flow-based financing that demonstrates how firm, intermediary, and capital market characteristics jointly shape firms’ financing constraints. A firm with imperfect access to equity financing covers financing needs through costly sources: an intermediary and retained cash. The firm’s financing capacity is endogenously determined by either the liquidation value of assets (asset-based) or the intermediary’s going-concern valuation of the firm’s cash flows (cash flow-based).

Wealth Inequality and Asset Prices

Matthieu Gomez

Wealthy households disproportionately invest in equity, causing equity returns to generate large and persistent fluctuations in top wealth inequality. Motivated by this observation, I study the joint dynamics of asset prices and wealth inequality in a model where a subset of agents (“entrepreneurs”) hold levered positions on the economy. In the model, as in the data, the wealth distribution is stochastic and it exhibits a Pareto tail, with a tail index that depends on the logarithmic average return of top households.

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Why/how should multiple hypothesis testing be done differently in empirical work? We give an economic foundation trading off research costs and incentives with implications for empirical practice.

New paper by @VivianoDavide, Wüthrich, and Niehaus:

https://www.restud.com/a-model-of-multiple-hypothesis-testing/

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New paper by Liski & Salanié:

https://www.restud.com/catastrophes-delays-and-learning/

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Supply-side climate policies in the oil market: Higher taxes reduce exploration and discoveries. If only OECD countries adopt this policy, 47–73% is offset by non-OECD countries.

New paper by @AhlvikLassi, @jorgenja, Hamang, & @tfharding:

https://www.restud.com/quantifying-supply-side-climate-policies/

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"We prove a CLT for strategic network formation with homophilous agents. This enables inference on statistics derived from a single large network. We discuss practical procedures."

New Paper by Leung & Moon:

https://www.restud.com/normal-approximation-in-large-network-models/

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