able to guarantee the performance that creates a value superior to that of the competitors, so that this might be sustainable in time. For such an improvement of the performance and of the competitiveness in a dynamic and complex environment we can reveal as fundamental the implementation of the...

The authors have focused on the provision of a general outlook on global multiregional models that enable the study of the effects of commercial policies, and have particularly analysed the models that can be applied to underdeveloped economies. Starting from a simple model, the hypotheses...