Further Discussion

•The model has been simplified.But due to the limited time,we plan to complete the following tasks.

•Considering the interaction of policies in effect,we can use the multiple regression method to establish the relationship between indicators and multiple policies,so as to ensure more accurate predictions.

•It is more practical to consider more other factors except natural disasters,such as political stability,foreign aid,etc.,and then modify the model.

•Based on the evaluation of the sustainable development of the country,we intend to consider the impact of a certain country on the sustainable development of the world,which helps provide a more cost-effective assistance or intervention to ICM.