The World Bank says the international goal of halving extreme poverty has been met. But with almost 1 billion people still living on less than $1.25 a day, what progress has really been made?Listen, and share your views on our talk point

What has been the story of global poverty over the past decade? What role has aid played? What should replace the millennium development goals after 2015?

Global development site editor Lucy Lamble debates these issues with a quartet of experts: Jayati Ghosh, professor of economics at Jawaharlal Nehru University in New Delhi and a regular columnist on the Global development site; Abhijit Banerjee, an economist from Massachusetts Institute of Technology and co-author of the acclaimed book Poor Economics; the Guardian's health editor Sarah Boseley; and Global development reporter Mark Tran.

The discussion was recorded at the Guardian's Open weekend.