Spotify, Coca-Cola, Sainsbury’s: 5 things that mattered this week and why

Sainsbury’s looks to address shopper promiscuity in loyalty overhaul
One of the key challenges facing the big four supermarkets is that shoppers are increasingly promiscuous. Where once they did a big weekly shop at their local branch of Tesco, Morrisons, Asda or Sainsbury’s, they are now doing more frequent, smaller shops throughout the week, topping up a smaller big shop with trips to the discounters and convenience stores. It’s a trend that has seen the big four lose market