Which retail analytics metric is most commonly used by major airlines to determine which products to stock in their in-flight duty-free catalogs?

The transportation industry relies heavily on retail analytics to optimize everything from in-flight purchases to train station convenience stores. These analytics shape the products available during your travels, influence pricing strategies, and determine store layouts at transportation hubs. Test your knowledge about how transportation companies use retail analytics to enhance passenger experience and maximize revenue during the customer journey!

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Sales velocity (how quickly specific products sell across different routes)
Regional demographic data of departure cities
Average passenger luggage weight
Historical weather patterns at destination airports