Rosie Collins is a mesoeconomic and social researcher from Aotearoa New Zealand. She works at the intersection of public policy, economic theory, and social psychology, focusing on the institutions and infrastructures that shape how communities coordinate, share costs, and sustain collective life.

Her work examines how social commitments, practices of solidarity, and experiences of sacrifice and wealth concentration influence ideas of economic justice and belonging. Drawing on psychoanalytic, cultural, and economic theory, she is interested in how credibility and trust are formed over time, and how these shape the long-run distribution of responsibility within societies. She is especially interested in how communities sustain forms of social and relational knowledge that challenge or reproduce dominant assumptions about autonomy, interdependence, and value.

Rosie holds an MPhil in Public Policy and a Bachelor of Applied Economics. She works with organisations and policy teams across Aotearoa on housing, retirement system justice, infrastructure, climate adaptation, and social cohesion, including advisory work with the Auckland Council, Toi Mai, the New Zealand Māori Council, MBIE, the Ministry of Transport, and the Business Leaders Health and Safety Forum. She currently leads research on social cohesion for the Helen Clark Foundation and retirement income reform for Simplicity New Zealand.