Econometric models estimating parameters for agricultural policy analysis increasingly rely on unbalanced panels of farm-level data. Since such models have often been estimated through simplified approaches, in this paper we show that adopting more sophisticated panel data techniques may be very...

Using a panel data set on the yogurt market for four hundred points of sale in Italy, we investigate, at the segment level, the interactions between private label (PL) market shares and national brand (NB) leader’s prices. We estimate a reduced form model which controls for the heterogeneity...