Christmas shopping, bubble tea, and the FTSE's anniversary

Ian King talks to Fraser McKevitt, from Kantar about supermarkets' profits over Christmas.

Mark Makepeace - the founding Chief Executive of FTSE International - discusses the 40th anniversary of the launch of the FTSE 100 with Ian.

And Chief Executive of Gong cha, Paul Reynish talks about the continued success of the Bubble Tea market.