Afriat's Theorem and Samuelson's 'Eternal Darkness' (with Ludovic Renou), Journal of Mathematical Economics, 65, 36-40, 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 paper version: Leicester 2016.
Testing for Intertemporal Nonseparability (with Ian Crawford), Journal of Mathematical Economics, 52, 46-49, 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 paper versions: IFS 2013, Leicester 2013.
Revealed Preference in a Discrete Consumption Space (with John K.-H. Quah), American Economic Journal: Microeconomics, 5(1), 28-34, 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 paper versions: IFS 2012, Leicester 2012.