Tesco was founded in 1919 in London and has since grown into a global supermarket and online retailer with over 530,000 employees. The document discusses Tesco's competitive factors and position in the market. It notes that while the UK economy has recovered from recession, discount rivals like Aldi have taken customers by offering lower prices. The summary also states that Tesco has effectively used market trends to update its clothing and fashion offerings. Finally, the summary mentions that Tesco has a competitive advantage through its online grocery delivery service, which offers convenience and allows it to compete on price through lower store costs.