Fabio Cerina

Welcome to my home page! I am full professor in Economic Policy (13A2) at the Dipartimento di Scienze Economiche e Aziendali of the University of Cagliari.

I am director of the Master's degree program in Economics, Finance and Data Analysis at the University of Cagliari.

I am also Researcher at CRENoS (Center for North South Economic Research) based in Cagliari and Sassari. 

I am an economist with research interests at the intersection of macroeconomics, labor economics and urban economics. Currently my work focuses on the spatial and occupational dynamics underlying job polarization and its geographic dimension and on the labor market impact of Generative Artificial Intelligence and remote work.

UPDATES

• NEW WORKING PAPER!  In "Generative AI and Posted Labor Demand" (with Simone Nobili and Marco Rosso), CRENoS WP 26/13 we answer two main questions: 1) Did ChatGPT reduce the volume of job postings in exposed occupations? Yes. Across 368 million U.S. job postings from Lightcast (2016–2025), and using an exposure measure that reweights AI's theoretical capabilities by actual usage (built on Anthropic data), posted demand in the most exposed occupations fell by about 8.6% relative to less-exposed occupations in the same local labor market and month. 2) Did ChatGPT hurt job postings in junior positions the most? Not really. Junior postings in exposed occupations did decline more, but the shift away from junior roles had already begun in 2021–22, before mass LLM deployment, and shows no further break at the release of ChatGPT, consistent with organizational frictions (e.g. the rise of remote work) rather than AI substitution.

• NEW WORKING PAPER!  (CEPR DP 21480) In "The Anatomy of Polarization: Evidence from Worker Flows", together with Elisa Dienesch, Alexander Monge-Naranjo and Alessio Moro we use longitudinal French administrative data (1984–2021) to show that employment polarization after 1994 reflects a collapse in the entry margin into routine jobs rather than mass displacement of incumbents. Routine-to-abstract upgrading flows remain large and stable throughout, and a substantial share is driven by non-college workers. Permanent link for latest version here

• NEW PUBLICATION! The paper "Saving behavior and the intergenerational allocation of leisure time" joint with Xavier Raurich has been accepted for publication in the Journal of Macroeconomics. Online open access version here.