what is velcm exogenous variable which exogenous variable is in a vecm model? what is exogenous variable vecm exogenous variables where does exogenous variable in vecm lie? what is the relationship between exogenous and exogenous variables in ven. what variables are vecm used for what are exogenous variables which variables in vecm are exogenous what type of variables is a vecm what variables are exogenous which exogenous variable is used in vecm? what is a exogenous variable in a vecm model what is vecm exogenous variable? which variable is an exogenous variable in vecm how to find coefficients of vecm how to find coefficients for exogenous variables in vecm? why do we use a vecm model which variables are exogenous in vecm? what is exogenous variables