Arnaud is a PhD student in economics, with interests in macroeconomics and public economics. He is interested in the formation of production networks—the complex webs of trading relationships between firms—and how their evolution relates to trends in inequality, innovation and market power. To address these questions, he uses large-scale administrative and patent data, as well as models inspired by graph theory. During his time at the Turing, he is interested to collaborate with, and learn from, anyone interested in (1) non-conventional economic data, (2) network formation and (3) partial differential equations or functional analysis.