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. My research focuses on urban economics, with interests in public and environmental economics.

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.

Apply here to the 2nd CREST Urban Economics PhD Workshop (deadline October 1st, 2026).

I am on the 2026-2027 job market.

Job Market Paper

The Hidden Costs of Urbanization Draft soon

Why does housing supply stay low where rents are highest? Linking permit-level survey data to building permits and precise parcel-level land occupation, I directly measure construction costs rather than inferring them from equilibrium outcomes. Thanks to an option-value model of redevelopment in which construction takes time and land is bargained, I recover parcel-level fixed costs as a structural residual net of both frictions, and decompose them: demolition accounts for 15% of their crosssectional variance, observed land-use regulation for 21%, and 37% remains unexplained by either. Two counterfactual results follow. First, setting fixed costs to zero raises supply by 104.1% and reduces rent by 22.7%, whereas removing the density cap (FAR) entirely closes only 41% of that gap. Second, the friction is too large for marginal instruments: the median parcel requires a transfer of 1,839 €/m2 to get redeveloped. In all, the binding constraint is not land-use regulation but the construction fixed costs of housing supply.

Presentations: UEA (Barcelona), Aix-Marseille School of Economics, HEC PhD Conference, AFSE (Nantes), BQSE Workshop (Berlin), Lugano, CREST

Working Papers

The Spatial Impacts of Population Ageing Submitted

PDF

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: AFEPOP (Marseille), CREST, RIEF (Marseille), Doctorissimies (PSE), EEA (Bordeaux), CEP (Berlin)
Age-Specific Response to Climate Change Draft soon

With Brice Berland

Soon.

Presentations (incl. by co-author*): AFEPOP* (Strasbourg), HEC, CREST*

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.