What are the implications of Brexit for Ireland and Europe? Is a serious economic shock possible? Might we see controls reappear on the border with Northern Ireland? Business leaders gathered in The Irish Times office this morning to hear economist and Irish Times columnist Professor John FitzGerald, London Editor Denis Staunton and Economics Editor Arthur Beesley discuss the positions of the Leave and Remain campaigns, the economic risks to Ireland and some possible scenarios if Britain opts out of Europe. They join Ciarán Hancock to continue the discussion on this week's podcast.