'Returns parameter names (for beta and deterministics) for the summary.
Returns
param_names : list of str
Returns a list of parameter names for the cointegration matrix
as well as deterministic terms inside the cointegration relation
(if present in the model).'

@property
def _coint_param_names(self):

    param_names = []
    param_names += [((('beta.%d.' + self.load_coef_repr) + '%d') % ((j + 1), (i + 1))) for i in range(self.coint_rank) for j in range(self.neqs)]
    if ('ci' in self.deterministic):
        param_names += [(('const.' + self.load_coef_repr) + ('%d' % (i + 1))) for i in range(self.coint_rank)]
    if ('li' in self.deterministic):
        param_names += [(('lin_trend.' + self.load_coef_repr) + ('%d' % (i + 1))) for i in range(self.coint_rank)]
    if (self.exog_coint is not None):
        param_names += [('exog_coint%d.%s' % ((n + 1), exog_no)) for exog_no in range(1, (self.exog_coint.shape[1] + 1)) for n in range(self.neqs)]
    return param_names
