How is a country developed ?

1)Provide quality education to your people rather than unnecessary spending in buying advanced weapons etc.

2)Make sure that education is not costly ,so that it will be available to all .

3)Try to promote your domestic bussiness rather than importing .It will boost the domestic market .

4)Try to improvise the policies efficiently rather than creating new policies evey week or month.

5)Pay well to your employees so they feel motivated .This can make sure they don't involved in malpractices such as corruption, malingering etc.

6)Develop infrastructure in every sector ,most important wil be road,railways,electricity,industries.

7)And most important choose your government wisely.

Note: all I’m my own prespective