Determinants of Healthcare Provider Networks: Risk Selection vs. Administrative Costs

By Natalia Serna

American Economic Journal: Microeconomics

This paper shows that health insurers’ decisions to include providers in their networks are influenced by a previously underappreciated source of cost savings: network administrative costs. These costs counteract insurers’ incentives to offer narrow...

Divisive by Design: Shaping Values in Optimal Mechanisms

By Anja Prummer and Francesco Nava

American Economic Journal: Microeconomics

We study a principal who allocates a good to agents with private, independently distributed values through an optimal mechanism. The principal can strategically shape these value distributions by modifying the good’s features, which affect agents’ ...

Platform-Mediated Competition

By Quitzé Valenzuela-Stookey

American Economic Journal: Microeconomics

In many markets the interaction between individuals and competing firms is mediated by a strategic platform. A defining feature of modern platforms is their extensive ability to control interactions. To understand such markets, I incorporate within-sid...

Reskilling and Resilience

By Anders Humlum and Pernille Plato

American Economic Review: Insights

This paper shows that effective reskilling substantially reduces antidepressant use among injured workers and their partners. Exploiting institutional variation in access to higher education following work accidents in Denmark, we find that reskilling ...

Unionization and wage inequality

[Page]

The impact of unionization on the salaries of faculty at Canadian universities.

AEA Committees

[Page]

Learn about the Committees of the American Economic Association.

New Applicant Societies Guidelines for Sessions at ASSA

[Page]

View guidelines for societies who wish to participate in the ASSA meetings.

About JOE Network

[Page]

Learn more about JOE (Job Openings for Economists)

Demo Home Page

[Page]

Message from the AEA Ombuds Team at MWI

[News]

June 15, 2026

View the AEA Member Announcement from June 15, 2026.

Boundaries of the firm

[Research Highlight]

June 12, 2026

Limiting the cannibalization of existing patented products

American Economic Association

[Page]

Nature, Nurture, and Socioeconomic Outcomes: New Evidence from Sib Pairs and Molecular Genetic Data

By Gareth Markel, Rafael Ahlskog, Joakim Coleman Ebeltoft, René Mõttus, Sven Oskarsson, Uku Vainik, Eivind Ystrom, and Jonathan Pierre Beauchamp

American Economic Review: Insights

First Law is that siblings' genetic relatedness varies randomly (with a mean of 50%). We use molecular genetic data to compute the genetic relatedness of ~80,000 sib pairs. We then compare the pairs' genetic relatedness to their similarity on 15 socioecon...

Resetting the Innovation Clock: Endogenous Growth through Technological Turnover

By Philippe Aghion, Antonin Bergeaud, Timo Boppart, and Jean-Félix Brouillette

American Economic Review: Insights

We propose a model of endogenous economic growth with “weak” scale effects and diminishing returns to innovation at the micro level. In our model, entrants introduce new technologies through research and incumbents incrementally improve them throug...