Hi, I'm Duarte.

I work on microeconomic theory and behavioral economics, with a special focus on information economics
I am an Assistant Professor at the Department of Economics - University College London
I concluded my Ph.D. in economics at Columbia University in 2021


Finally updated: Sequential Sampling Equilibrium

New working paper: Quantal Response Equilibrium with a Continuum of Types: Characterization and Nonparametric Identification (with Evan Friedman)


Working Papers

Sequential Sampling Equilibrium
A revised version of my job market paper, Sequential Sampling and Equilibrium
| 1st draft Sept 2020; (finally) updated Nov 2022; submitted

A new equilibrium solution concept where players sequentially sample to resolve strategic uncertainty over their opponents' distribution of actions delivers predictions on the joint distribution of actions, beliefs, and decision times.

Retractions: An Experiment on Information about Information
| with Jonathan Libgober and Jack Willis ; 1st draft June 2021; updated Feb 2023; submitted

Retractions — provision of information about past information — are treated as more complex than equivalent direct information and subjects infer less from them. (Previously circulated as NBER working paper with the title "Learning versus Unlearning: An Experiment on Retractions")

The Effect of Incentives on Choices and Beliefs in Games: An Experiment
| with Teresa Esteban-Casanelles; 1st draft Feb 2020; updated Nov 2020; (currently being revised)

The incentive level in games affects choices and beliefs about the opponent by inducing greater cognitive effort.

The Economics of Recommender Systems: Evidence from a Field Experiment on MovieLens
| with Guy Aridor, Ruoyan Kong, Daniel Kluver, Joseph Konstan; 1st draft Nov 2022; submitted

Recommendations (i) increase consumption, (ii) affect consumers' beliefs which in turn guide consumption decisions, and (iii) induce further information acquisition.

Quantal Response Equilibrium with a Continuum of Types: Characterization and Nonparametric Identification
| with Evan Friedman; 1st draft Mar 2023; submitted

We provide a complete characterization of the set of QRE in a class of binary-action games with a continuum of types, including global games, which we leverage to develop nonparametric tests.

Statistical Mechanism Design: Robust Pricing and Reliable Projections
| with Bruno Furtado; updated Aug 2020

A mechanism designer with a sample of consumers' types can conduct valid inference on profit and regret and use our toolkit to compare mechanisms.

Work in Progress

Efficient Sequential Sampling (working title)
with Nick Netzer

Endogenous Strategic Uncertainty
with Teresa Esteban-Casanelles and Evan Friedman

with Jonathan Libgober and Jack Willis


The Dynamics of Instability
| with César Barilla; 1st draft Feb 2022; updated Nov 2022; accepted at Theoretical Economics

Even in absence of short-term gains, players with diametrically opposed interests want to generate instability to advance their interests.

Recommenders’ Originals: The Welfare Effects of the Dual Role of Platforms as Producers and Recommender Systems
| with Guy Aridor; International Journal of Industrial Organization (2022)

The ability of platforms to bias their recommendations can lead to vertical foreclosure, but separating recommendation and production is not always welfare improving.