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S3 method: vcov for objects of class GEM.
GEM
# S3 method for GEM vcov(object, ...)
Variance-covariance matrix of the final ML estimates for parameters of the fitted GEM model. It returns the square of the estimated standard error for CUSH and IHG models with no covariates.
An object of class GEM
Other arguments
varmatCUB, varmatCUBE, GEM
varmatCUB
varmatCUBE