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Left to work at Cambridge University but remains a Visiting Fellow

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  • Oliver Walker

    Visiting Fellow

    Oliver re-joined the Grantham Research Institute as a Visiting Fellow in January 2014 having left the permanent staff in October 2012. His current work examines the impact of various forms of uncertainty on climate policy, regulation, and financial markets, with a particular emphasis on ambiguity (uncertainty over the correct probability distribution) and unawareness (the presence of unknown unknowns). This draws on recent developments in decision theory and experimental evidence on choice behaviour.

    Background

    Oliver holds a doctorate from the Economics Department at the University of Oxford, and has worked as a University Lecturer at Cambridge University, a post-doctoral researcher at the Grantham Research Institute, and a college lecturer at Corpus Christi College, Oxford. He currently works as an economic consultant at NERA, and is the author of the Rough Guide to Economics, which was published in March 2014.

    Research interests

    • Decision theory;
    • Insurance.
    Research article  9 May, 2017

    Ambiguity and Insurance: Capital Requirements and Premiums

    Many insurance contracts are contingent on events such as hurricanes, terrorist attacks, or political upheavals, whose probabilities are ambiguous. This article offers a theory to underpin the large body … read more »

    2016

    Working paper  21 November, 2016

    Ambiguity and insurance: capital requirements and premiums

    Many insurance contracts are contingent on events such as hurricanes, terrorist attacks or political upheavals, whose probabilities are ambiguous. This paper offers a theory to underpin the large body of … read more »

    2011

    Working paper  1 December, 2011

    Unawareness with 'possible' possible worlds

    Logical structures for modelling agents’ reasoning about unawareness are presented where it can hold simultaneously that: agents’ beliefs about whether they are fully aware need not … read more »

    Working paper  1 September, 2011

    A representation result for choice under conscious unawareness

    There are many examples in policy making, investment and day-to-day life where the set of contingencies the decision maker can conceive of does not resolve all … read more »

    More in research publications