The weekly news update highlights significant trends in the retail grocery sector, including Asda leveraging the Pokémon Go craze to enhance customer engagement, concerns over Brexit affecting retail footfall, and Sainsbury's trial of a one-hour home delivery service. Boots is set to expand into South Korea, while a report shows that 28% of Irish shoppers abandon stores after encountering stock issues. Additionally, Amazon has been named the UK’s favorite retail brand, with a substantial link between physical stores and online sales.