He is an up-and-coming macroeconomist with an interest in social and economic networks. His research asks how the structure of networks among decision makers affects processes such as trade and the provision of public goods. His work explores how network formation and maintenance can be formally studied in economic terms. He often poses these questions in relation to the presence of these networks in developing economies. His research focuses on how these networks form when agents invest strategically in relationships, how information is transmitted through them, and how they mediate important economic processes such as group cooperation. Applications of the research include measuring social segregation and understanding its consequences for polarization of beliefs or behaviors.