The British government’s own analysis of the economic impact of Brexit forecasts a fall in gross domestic product of 9% for Wales. The role of non-resident Welsh people (the Welsh Diaspora) and their soft power, in bringing new wealth and prosperity to Wales, is of huge importance and could be transformational. With global engagement changing the fortunes of nations and exerting huge influence over many aspects of public life and economic development, it’s time Wales got serious about diaspora. Mark Neale, CEO and founder of Mountain Warehouse, Kingsley Atkins, the founder and CEO of Ireland’s Diaspora Matters, and Rachel Minto, an EU expert based at Cardiff University, talk to Guto Harri.