How do developed countries maintain an advantage over
developing countries in international trade?

Developed countries work on their industrialization more than developing countries by maintaining their industries up to date by introducing all recent techniques that help in growth.They work on their ca-pita and GDP more as compared to developing countries.Increase their literacy rate.Make their infrastructure more and more powerful and up to date.Develop more revenue by introducing new techniques and creating labs on which they research the feasibility analysis of techniques they can improve.Make their standards of living more high.Utilize their resources effectively and efficiently.Make their birth and death rate as low as possible.