Analysis of the Foreign Sector as an Endogenous Variable in SAM Linear Models: An Empirical Proposal

Abstract

The traditional consideration of the Foreign Sector as an exogenous variable in Input-Output or Social Accounting Matrices (SAM) linear models has led to biased estimations of hypothetical demand shocks when applying those models. The objective of this work is to analyse the possibility of including operations with foreign countries as an endogenous variable while solving the difficulties associated to this option. Thus, the methodology herein proposed makes it possible to prevent the influence and impact of the Foreign Sector from being overvalued, such as they are when estimated by other methodologies. A Social Accounting Matrix for Spain has been used as the database for this work.