Analyzing Cost-Efficient Production Behavior Under Economies of Scope: A Nonparametric Methodology. - Laurens Cherchye; Bram De Rock; Frederic Vermeulen (Oper. Res., 2008)

An Afriat Theorem for the collective model of household consumption. - Laurens Cherchye; Bram De Rock; Frederic Vermeulen (J. Econ. Theory, 2010)