This project focuses on the comparison of the 1963 economic system of the Valle D'Aosta region  with the most current one in 2002 through the construction of two regional social accounting matrices.

In this work we compare the economic system of the Valle d'Aosta region of 1963 with the most current of 2002 through two regional social accounting matrices. The ability to use two Sam, with the same structure, but referring to different historical periods, is a source of comprehensive and useful information to understand the changes that have affected the region over the past 40 years.
From the analysis of the multipliers obtained from the two matrices, it is possible to know the integration process and the degree of involvement of the sectors and regional institutions in economic policy interventions.
From the analysis of multipliers, the various integration processes undertaken by the sectors of the region have emerged. On one hand, the importance of tourist spending has been confirmed in influencing the regional economy in both periods. At the same time positive signals come from the energy sector, the service sector and the public administration. On the other hand, some sectors remain strongly oriented towards inter-regional exchanges, it is the
heavy industry case . Regarding the redistributive aspects, the survey revealed a more uniform distribution of the effects of the different categories of households in 2002 compared to the previous period as a result of the region's support to the multi-occupational model characterizing the labor supply of Valdostan families.

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