Gordon Bridger draws on a lifetime's experience as an economist in developing countries to argue that we should spend overseas aid differently to stop it doing more harm than good.
He urges an end to direct transfers of money to governments as he fears inadequate audit can too easily allow misuse of funds.
Four Thought is a series of talks which combine thought provoking ideas and engaging storytelling.
Recorded live in front of an audience at the RSA in London, speakers air their thinking on the trends, ideas, interests and passions that affect our culture and society.
Producer: Sheila Cook.