Build the GVAR(1) from the country-specific VARX(1,1,1)
BuildGVAR(ParaVARX, GlobalPara, GVARinputs, DomLabels, GlobalLabels, N)
Set of VARX model parameters
Set of marginal model parameters
List of inputs for GVAR-based models
string-based vector containing label of the domestic risk factors
string-based vector containing label of the global risk factors
number of country-specific spanned factors (scalar)