Afriat's Theorem and Samuelson's 'Eternal Darkness' (with Ludovic Renou), Journal of Mathematical Economics, 2016. Provides a new proof of Afriat's Theorem, which highlights why a concave rationalization is without loss of generality in a classical finite data setting (doi: 10.1016/j.jmateco.2016.05.003). Working Papers: Leicester 2016.
Testing for Intertemporal Nonseparability (with Ian Crawford), Journal of Mathematical Economics, 2014. Establishes an observational equivalence between habit formation and anticipation in finite data containing prices, interest rates, and consumption choices (doi: 10.1016/j.jmateco.2014.03.007). Working Papers: IFS 2013, Leicester 2013.
Revealed Preference in a Discrete Consumption Space (with John K.-H. Quah), American Economic Journal: Microeconomics, 2013. Shows that an agent maximizing utility on a discrete (instead of continuous) consumption space still obeys the generalized axiom of revealed preference (GARP) (doi: 10.1257/mic.5.1.28). Working Papers: IFS 2012, Leicester 2012.