Estimate numerically the Cholesky-factorization from the JLL-based models
EstimationSigma_Ye(SigmaUnres, res, M, G, Economies, DomUnit)
Cholesky-factorization after the maximization (K x K)
unrestricted variance-covariance matrix (K x K)
residuals from the VAR of the JLL model (K x T)
number of domestic unspanned factors per country (scalar)
number of global unspanned factors (scalar)
string-vector containing the names of the economies which are part of the economic system
Name of the economy which is assigned as the dominant unit.
If no dominant unit is assigned, then this variable is defined as "none"