To modify the welfare of developed countries. This change results in a change to the world. As a result, developing countries also need odds and under developed countries.
Modify the welfare of developing countries. From this change causes a change to the world. As a result, developing countries have become secondary. And under-developed countries.
Modifying the welfare of developed countries. From this change causes changes to the world. Due to the developing countries must be minor! And under developed countries.