what are the nic values of egarch the nic of the egarch model can't be plotted together using the same scales as the nic of the egarch model? what is egard curve what is the news impact curve of sgarch what is the nic of the egard where is the nic of the egarch model plotted where is the nic for each egarch model what is the value for the nic of the nich curve in sgarch how to plot a news impact curve what is the nic value in the egarch model? how to plot multiple news impacts into the same vignette graph what is the nic for an egarch model? which model is based on the news impact curve what is the nic for garch what is the nic value for the egard equation what scale does egard curve run on what is the news impact curve in garch what is the nc of the egard model what is the nic in the egarch vola equation what is the news impact curve for the egarch model