Martin is an Associate Director of IFS, and head of the Industrial Organisation and Demand sector. His research interests include empirical IO, public economics and applied microeconometrics. He joined the IFS in 2008.
The impact of variation in diet quality across individuals on obesity and diet-related disease has received much attention, but variation in individuals’ diet quality over time less so. This column combines British data on food purchases with a model in which individual choice is driven by the influence of a healthy self and an unhealthy self to examine self-control problems in food choice.