Kirsty Styles is joined by economist Mary Robertson to chat about the origins of the accelerating UK housing crisis and how we can tackle it. Kirsty also discovers why building societies are called "building societies" and makes some ornithological observations. Weekly Economics Podcast on Twitter: www.twitter.com/weeklyeconpod Kirsty Styles on Twitter: www.twitter.com/kirstystyles1 Produced by James Shield. Programme editor for NEF: Alex Jones Brought to you by the New Economics Foundation – the independent think tank and charity campaigning for a fairer, sustainable economy. Find out more at: www.neweconomics.org. Music courtesy of Apple; Podington Bear, under Creative Commons BY-NC Licence www.podingtonbear.com; and Macaw, used under Creative Commons Licence www.freemusicarchive.org/music/Macaw.