Forecast combination has been proven to be a very important technique to obtain accurate predictions for various applications in economics, finance, marketing and many other areas. In many applications, forecast errors exhibit heavy-tailed behaviors for various reasons. Unfortunately, to our...

In this paper, we discussed the Statistical modeling of the original data series and the residuals series. Residual series has been use for the forecasting the shock occurring in the economic data series. Objective and Subjective technique has been used for the modeling.