Matéo Moglia

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Matéo Moglia

I am a 4th-year PhD candidate at CREST and Ecole Polytechnique, advised by Pierre Boyer and Benoit Schmutz-Bloch. I am an structural microeconomist, with interest in public economics, urban economics, and environmental economics. My research addresses questions related to population ageing, climate migration, real estate, and urban renewal.

I hold a MPhil. in Economics from ENS de Lyon. During the Summer 2025, I visited the Berlin Quantitative Spatial Group, sponsored by Gabriel Ahlfeldt. During the Spring 2026, I visited the Wharton School, sponsored by Gilles Duranton.

Join us for the 2nd CREST Urban Economics PhD Workshop, on December 10 and 11. Programme and registration link here!

I am on the 2026-2027 job market.

Job Market Paper

The Hidden Costs of Urban Renewal

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Three wedges hinder urban redevelopment: (i) market structure (concentrated developers); (ii) market frictions (uncertainty regarding future rents, high fixed costs, and construction time); and (iii) market regulation (taxes and land-use regulations). I formalise these constraints within an option value model of parcel redevelopment, in which land is traded between landowners and oligopsonistic developers. Developers mark down the price of land, a market failure that delays only parcels that carry a building. I calibrate the model on data from 600,000 parcels in the Paris metropolitan area, recover a parcel-specific fixed cost net of the other wedges, and compute medium-run (20-year) supply responses under alternative policies. Lifting density caps changes the quality-adjusted housing stock by -4.29% after twenty years and by 6.72% after fifty, because taller allowances also raise the value of waiting. Within legal bounds and under a balanced budget, the best rent-minimising mix of instruments cuts the taxes on new construction, taxes land instead, and lowers market rents by 14.02% on average over twenty years, mostly through a transfer from incumbent landlords to renters. Neither restores efficiency. A tax on the standing value of under-used parcels, at a rate set by local developer concentration, does so and raises revenue. It brings the redevelopment of the next twenty years forward by 1.9 years.

Presentations: 2026 Urban Economics Association (Barcelona), Aix-Marseille School of Economics seminar, 2026 HEC PhD Conference, 2026 AFSE Annual Meeting (Nantes), 2026 Berlin Quantitative Spatial Economics Workshop, 2026 Real Estate and Urban Economics Conference (Lugano), CREST Internal seminar, Economics of Housing Policy Workshop (Rotterdam), 2026 CREST Urban Economics PhD Workshop (Paris), NYU (Abu Dhabi)

Working Papers

The Spatial Impacts of Population Ageing

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Rich countries are ageing and will all soon lose population. This paper examines the impact of this major demographic shift on welfare and inequality by taking into account its wide spatial heterogeneity. Using administrative data on population, housing markets, and local public finance in France, I reveal a new trade-off related to population ageing: an increase in housing costs and in local tax revenues. I build and calibrate a quantitative spatial model in which households differ in terms of skill, age, and family size. I then use this model to run counterfactual experiments based on demographic forecasts. The results show small positive impacts on welfare albeit with an increase in spatial inequalities.

Presentations: 2025 Association Française des Economistes de la Population (Marseille), CREST Internal seminar, 2025 RIEF Doctoral Meeting (Marseille), 2025 Doctorissimes (PSE), 2025 European Economic Association Meeting (Bordeaux), 2025 Conference on Regional Economic Inequalities (Berlin)
Age-Specific Response to Climate Change Draft soon

With Brice Berland

Soon.

Presentations (incl. by co-author*): 2026 Association Française des Economistes de la Population* (Strasbourg), PhD Workshop in Urban Econmics (HEC), CREST PhD Seminar*

Teaching

Introduction to Economics (Engineer)

Teaching Assistant · Ecole Polytechnique

Spring 2026
Introduction to R and Stata (Master)

Teaching Assistant · Ecole Polytechnique

Fall 2025
Introduction to Economics (Bachelor)

Teaching Assistant · Ecole Polytechnique

Spring 2024–2025
Quantitative Methods for Social Science (Master)

Instructor · Ecole Normale Supérieure de Lyon

Spring 2023

References

Gabriel Ahlfeldt
Professor of Economics, Humboldt University

Pierre Boyer
Professor of Economics, CREST & Ecole Polytechnique

Gilles Duranton
Professor of Economics, The Wharton School (University of Pennsylvania)

Benoit Schmutz-Bloch
Professor of Economics, CREST & Ecole Polytechnique

Miscellaneous

Data replicator
The Journal of Political Economy, The Economic Journal, the Econometrics Journal

Other activities

Organiser: CREST PhD Urban and Spatial Workshop (2025, 2026), Economics Days @ ENS de Lyon (2023)
ENS de Lyon then CREST student representative (since 2019)

Personal
Outside research I enjoy listening to funk and jazz music, and playing the bass.