We’re trying to define entry and exit of businesses in terms of “placekey” variable. Specifically, we want to define "exit’ when the certain “placekey” does not appear in Spend dataset for a ceratain period of time. There are some questions regarding the entry and exit.
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Can there be other reasons for the certain placekey disappear from the dataset other than real exit of the business? For example, redefining the placekey for ceratin reason.
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We found that certain placekeys repeatedly appear and disappear month by month. Can there be potential reasons for this pattern other than short-term shutdown?
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When is the new placekey assigned to a certain location?
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When does the placekey disappear in the dataset? Is it only the case where there is no transaction in the certain business in the certain month?