Data methodology.
We pulled two kinds of datasets to create these graphs and maps. The first was the House Price Statistics for Small Areas from the Office for National Statistics. This dataset lists the most recent house prices (March, 2019) for over 300 local authority districts in the United Kingdom. The second dataset used was the Supermarket Index, which we created using the Google Maps API. We used this API to search for different brands of a supermarket within each local authority district across the UK (for example, “Tesco in Country Durham” ) to give us a raw count per location. When adjusted for population, the final result was the number of supermarkets per 100,000 people. Comparing these two datasets to each other allows us to uncover the correlation between the local supermarket brands and house prices.
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