Guy Thomas is an actuary and investor. He was previously a full-time lecturer in CASRI in the 1990s.
A general theme of his research is the reframing of actuarial problems from the viewpoint of society, or sometimes a disadvantaged class in society, rather than from the viewpoint of managing a financial institution.
Guy originated the concept of loss coverage as a metric for the comparing the social efficacy of different risk classification schemes. His book Loss Coverage: Why Insurance Works Better with Some Adverse Selection was published by Cambridge University Press in 2017.