Amol Rajan and his guests look at Japan where almost a third of the population is aged 65 or over. What does that mean for Japan's economy, and its future? And what can other ageing countries learn from its experiences so far? GUESTS Kathy Matsui, partner at venture capital fund MPower Celia Hatton, Asia-Pacific Editor for the BBC Bill Emmott, Chairman of the International Institute for Strategic Studies, former Editor of the Economist Noreena Hertz economist and author of 'The Lonely Century' Presenter: Amol Rajan Producer: Lucinda Borrell Editor: Kirsty Reid