What is group of 77? why did Group-77 countries demand. a NIEO? Explain

(a) under the Bretton woods system all the decisions were made by the western industrial powers in their own interests. The developing countries were still being exploited by the western countries and the US. Thus, under these circumstance, devl being exploited by organised developing countries themselves as a group the Group of 77 (or G-77) -to demand a new international economic order (NIEO)
(b) The G-77 countries demanded NIEO because that would give them real control over their natural resources, more’ development assistance, fairer prices for raw materials, and. better access for their manufactured goods in developed countries, markets.
(c) It was a reaction to the activities of the Bretton Woods system because under that system nothing substantial was done for the developing countries. Their natural resources were still being exploited. So the developed countries had no alternative except to organise them- selves as a group of G-77 and to have NIEO.

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https://www.tiwariacademy.com/ncert-solutions/class-10/social-science/history/chapter-1/