Proposals to end extreme poverty - defined as anyone living on less than $1.25 a day - were put together by a United Nations committee chaired by David Cameron in 2013.
Dr Kim said that action by organisations like the World Bank, which provides loans to developing countries, as well as the growth of free trade had lifted millions of people out of poverty.
He said that international organisations had to do more to explain the advantages of global trade for advanced as well as emerging economies.