Professor Marshall's research lies at the intersection of comparative politics and political economy, and spans elections in developing and developed contexts. He studies how news consumption, indicators of government performance, levels of education, and social networks shape how voters select politicians. As well as bottom-up voter behavior, Professor Marshall is also interested in how politicians choose electoral strategies, when media outlets decide to report political news, and how institutions can be designed to improve bureaucratic performance. He generally analyzes these questions by combining quasi-experimental and experimental designs with theoretical models to identify and help interpret causal relationships.