Qumrul Choudhury, spokesman for the least developed countries group, said nations should be "pragmatic".
Countries must now put their money where their mouth is and close the gap," said Tosi Mpanu-Mpanu, chair of the 43-strong least developed country group.
Since the group of least developed countries (LDCs) was identified in 1971, only five countries have graduated from the group, all of which are characterised by small size or population.
The group of least developed countries (LDCs), the world's 49 poorest states, at their last conference in Istanbul, Turkey, stressed the importance of foreign investment and the private sector in reducing poverty.
Developed countries have committed to helping developing and least developed countries implement the Agreement through technical and financial assistance.
Most entrepreneurs in developed countries choose their path by free will whereas the majority become entrepreneurs by necessity in developing and least developed countries.
Nonetheless, immunization coverage has improved substantially among developing or least developed countries since 2000.
Most coffee-dependent countries are least developed countries or part of the ACP group.
While the main responsibility for education rests with national governments, development aid continues to play a role, especially in the least developed countries, in fragile situations, and for marginalised groups.
At the Durban conference, the final outcome owed much to a new coalition between the EU, the least developed countries and the Alliance of Small Island States, and a new grouping of Latin American and Caribbean countries with strong commitments to climate action.
