Kroft, Kory, Jean-William Laliberte, Rene Leal-Vizcaino and Matthew J. Notowidigdo (2017). “Quantifying the Welfare Gains of Variety: A Sufficient Statistics Approach”

Kroft, Kory, Kavan Kucko, Etienne Lehmann and Johannes Schmieder (2015). “Optimal Income Taxation with Unemployment and Wage Responses: A Sufficient Statistics Approach” Online Appendix.