I work on topics in epistemology, ethics, metaphilosophy, and social and political philosophy. I am currently thinking about the role of anger in politics, the relationship between philosophy and feminism, and the genealogical contingency of our beliefs.

My research concerns the detection and characterisation of exoplanets and their host stars. I am interested both in exploring the full diversity of planets and planetary systems in the Galaxy, and in understanding the frequency and characteristics of other worlds that might be hospitable to extra-terrestrial life. I use data from space telescopes such as CoRoT, Kepler, and Hubble, as well as a range of ground-based telescopes, to discover new transiting planets and probe their atmospheres, and am involved in future space missions such as PLATO. I also work with the Machine Learning Research Group in the department of Engineering Science, using state of the art statistical methods to extract faint planetary signals in large, noisy time-series datasets.

My research focuses mainly on the economics of longevity and how individually and socially we need to adapt to the realities of longer lives and all that implies for the economy and the health sector as well as society more broadly. My past work focused on business cycles and in particular monetary and fiscal policy and debt management.

My research focuses on trade, mobility and interdependence in Algeria, northern Mali and, more recently, northern Chad. My aim is to understand the local through the many ways in which it is connected to the outside, and thereby to develop a comparative framework for the study of the Sahara as a region. As part of this larger research project, I am currently working on a book-length study of Faya-Largeau, the main town in northern Chad. I am also involved in a collaborative project on the anthropology and history of non-state law.

My research is in natural language semantics and pragmatics. In particular, I study presupposition, the logical connectives, definite descriptions and pronouns, epistemic language, questions, context-sensitivity, and game-theoretic accounts of meaning.