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Glossary
Catchment area
A catchment area is the geographic perimeter within which a store or transaction effectively meets local demand.
Why it matters
It structures competitor selection and directly shapes the reading of local market shares.
In practice
In retail files, teams often prefer isochrones or travel-time logic over an abstract radius.
Common mistake
Using an automatic area without checking whether it fits the market and actual demand behaviour.
Turn point-of-sale data into usable market share / HHI analysis
See how Pyner structures catchment areas, computes indicators and prepares the material your filing needs.