Recent Working Papers
Revealed Preferences over Risk and Uncertainty (with John K.-H. Quah and Ludovic Renou), 2019. Develops and implements a nonparametric procedure, called the GRID method, for testing the consistency of contingent consumption data with a broad class of models of choice under risk and under uncertainty. Working Papers: St Andrews 2019, QMUL 2017, IFS 2015, Oxford 2015, Leicester 2013. Slides: GRID Method.
A Lattice Test for Additive Separability, 2018. Establishes necessary and sufficient conditions for a finite data set of price and demand observations to be consistent with an additively separable preference, with an empirical application to panel data on food purchases. Working Papers: IFS 2018, St Andrews 2018. Slides: Additive Separability.
Older Working Papers
Demand Analysis with Partially Observed Prices (with Ian Crawford), 2016. Demonstrates that demand analysis remains feasible in the presence of partially observed prices, even while agnostic about the nature of missing prices. Working Papers: Leicester 2016, IFS 2015.