Tesco, Subway, Heinz: 5 things that mattered this week and why

Tesco ups the ante with Aldi and Lidl
This week it emerged that Tesco is only a few months away from rolling out a discount supermarket chain across the UK.
Jack’s – as it is reportedly going to be called, named after Tesco founder Jack Cohen – is an obvious pushback against the likes of Aldi and Lidl, which over the past few years have been winning market share from the Big Four (Tesco, Sainsbury’s, Asda and Morrisons).
What the new concept value store will look like in