Clara Roch

Engineer / Oct 2025 to Oct 2026

Food trade, preferences and emissions: measuring and acting in Europe

This research aims to assess how reforms in agricultural and trade policies, together with plausible shifts in dietary preferences, could contribute to lowering the carbon footprint of food consumption in the European Union. Central to the analysis is international agricultural trade, which connects consumption sites with production regions and enables the evaluation of the spatially displaced impacts of climate‑policy measures.

Craig Pesme

Paris School of Economics (PSE)

PhD student / March 2025 to March 2028

Economic analysis of shifts in food‑consumption behaviours

This research investigates how a shift toward greener preferences may influence both the magnitude and the distribution of ecological‑transition costs. A key theoretical difficulty arises from the need to measure changes in the cost of living when the underlying preference structure is itself evolving, which seems to require a reference metric that changes alongside the object of measurement. We develop an approach that resolves this issue and demonstrate that it satisfies several desirable normative criteria.

On the empirical side, we analyse food consumption in France using a panel dataset that links household purchase records with survey information on environmental attitudes. We assess whether greener preferences dampen the increase in the cost of living during episodes of food‑price inflation, how this effect varies across socio‑economic groups, and what this implies for the distribution of transition costs.

Maëva Guyomard

Paris School of Economics (PSE)

Assistant engineer / Sept 2025 to Sept 2026

Applied data science

This mission aims to construct and harmonise data on French households’ out‑of‑home food consumption to inform the calibration of a structural demand model. The task involves documenting and quantifying out‑of‑home expenditures and quantities in a manner consistent with at‑home consumption datasets, thereby allowing for the joint estimation of substitution patterns between the two consumption domains. This is a crucial step for producing credible simulations of environmental‑policy impacts, given that such policies may trigger shifts between home‑prepared and out‑of‑home meals.

Alexandra Hondermarck

Centre Maurice Halbwachs

Postdoctoral researcher / Oct 2025 to April 2027

Dynamics of food preferences and eating practices in the context of rising environmental concerns

As part of the PREFALIM and DYNAPOL‑3P projects, my work involves exploiting the Kantar panel, which has monitored food purchases, attitudes and sociodemographic characteristics of several thousand French households since 2011. Conducted within a sociology‑of‑food framework and in collaboration with Marie Plessz and Séverine Gojard, this research relies on statistical techniques specifically adapted to longitudinal panel data.