... and creating an oligopolistic market economy: Tesco (30%), Asda (17%), Sainsbury (16%), Morrison (12%). It also looks at the growth trend of these companies over the last 10 years. A macro-analysis was conducted assessing the external factors affecting the supermarket industry focusing on the Political, Economical, Social/Cultural and Technological even that have been affecting this market over the last 5 years. The PEST analysis also evaluates current trends in order to estimate future developments. The Porter's 5 forces analyses has established an imbalance in this industry. It appears clear that although the top four chains are exerting a strong competition on each other, the power of customers and suppliers is very limited and almost nil. The same applies for new entrants that have very high barriers due to the oligopolistic market present at the moment. The financial and business performance of Tesco have been analysed and compared with its biggest competitor Sainsbury. The ...

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