Although the Covid-19 crisis has shown how high-frequency data can help track economy in real time, we investigate whether it improve nowcasting accuracy of world GDP growth. To this end, build a large dataset 718 monthly and 255 weekly series. Our approach builds on Factor-Augmented MIxed DAta Sampling (FA-MIDAS), which extend with preselection variables. We find that markedly enhances perform...

Customer churn is the term which indicates the customer who is in the stage to leave the company. Particularly it is happening recurrently in the telecommunication industry and the telecom industries are also in a position to retain their customer to avoid the revenue loss. Prediction of such behaviour is very vital for the present market and competition and Data mining is the one of the effect...