European producers of fresh vegetables are under pressure to improve their performance in order to increase competitiveness. Innovative products and processes and competitive advantage can be gained by the creation and use of unique resources as an outcome of cooperation between producers and...

The successful literature about gravitational models stresses that bilateral trade flows among countries is influenced by GDP factors and transaction costs. In other words the mass of bilateral trade would be related to the typical demand-supply factors which explain the quantity of traded goods...