Long And Short Term Forecasting For Automobile Sales

Forecasting sales for both long and short term is crucial for planning the production and making business decisions.There different models were designed for long term forecasting,while the other one was for short term forecasting.Grey system model and ANFIS model were effective when too little information obtained or lacking of sufficient data.A regression model contained indicator variable was built since the policy always affects the auto market.SARIMA model was used to forecast the monthly sales in one year.The results showed that these models have good prediction ability in each case.