The dynamics of preference formation

Abstract A model is developed and estimated which explains the formation of individual preferences on consumption under the influence of contacts with others (preference interdependence) and own consumption over time habit formation). The model employs a cardinal utility function which can be measured independently of behavioral assumptions. Since preference interdependence has been analyzed earlier, the paper concentrates on habit formation, the preference interdependence component being imputed from an earlier study. Due to data restrictions and measurement error, special econometric provisions must be made. Preference interdependence appears to explain two thirds of individual preferences and habit formation one third.