Estimate, summarize, and perform predictions with the market in
disequilibrium model, as found in Gourieroux, C. (2000)
Estimate, summarize, and perform predictions with the market in disequilibrium model, as found in Gourieroux, C. (2000) \doi{10.1017/CBO9780511805608} and Maddala, G. (1983) \doi{10.1017/CBO9780511810176}. The parameters are estimated with maximum likelihood.