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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.

Related articles

Pillar guide

Retail merger control: a practical guide to local market analysis before filing

Methodology

How to calculate a local market share with a credible catchment area

Related documentation

Isochrone guide↗

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