Multi-Regional Input-Output Models for Freight Demand Simulation at a National Level

Abstract

This paper discusses the analysis of freight transport and economic effects of infrastructural investments in Southern Italy, through the application of a recently updated MRIO-based Italian freight DSS (Marzano and Papola 2004, Cascetta et al. 2005). First, the paper proposes an original state-of-the-art systematization of input-output models for freight demand simulation at a national level. Then, generalizations allowing for elasticity both in trade and in technical coefficients are discussed, together with further research perspectives. Finally, a modification of the RUBMRIO model (De La Barra 1989) is applied for infrastructural investments appraisal in Southern Italy, focusing also attention on the impacts on the overall national economy.

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