Campbell D, Boeri M, Longo A. Accommodating heterogeneity for reducing traffic pollution: a 'mixed' latent class approach. Presented at the European Transport Conference; October 2010. Glasgow, United Kingdom.
Campbell D, Boeri M, Longo A. Accommodating preference heterogeneity in stated choice analysis: a 'mixed' latent class approach. Presented at the Irish Environmental Economics Conference; September 8, 2010. Athenry, Ireland.
Campbell D, Boeri M, Doherty E, Hutchinson WG. Learning and fatigue in discrete choice experiments: addressing preference and variance instability. Presented at the European Association Agricultural Economists Congress; August 2010. Zurich, Switzerland.