This paper presents the results emerging from the application of alternative Common Agricultural Policy (CAP) scenarios into the Italian econometric country model, developed as part of the AG-MEMOD research project. Major attention is paid on the effect of the 2003 CAP reform on the Italian durum wheat production and a key role in shaping this impact is attributed to national choices. These concern the full or partial decoupling regime for the durum wheat supplementary payment, the introduction of the “quality premium” ex article 69 of the reform and the respective selective application. The implementation of these alternative CAP scenarios within the Italian AG-MEMOD model eventually confirms how critical national choices may be in determining the final outcome of the reform itself.