Choice of functional form and structural change specification may each influence demand parameter estimates. Joint non-nested testing of both is applied for the linearised almost ideal and Rotterdam models with and without structural change, incorporated using a gradual transition specification....

Non-compensatory preferences are investigated by incorporating attribute cutoffs into models of consumer choices for food with health-related attributes (omega-3 content) that may be associated with genetic modification. We find empirical evidence that some individuals tend to use attribute...