Which retail innovation has most dramatically increased ancillary revenue for major airlines since 2018?

In the fast-evolving transportation retail sector, innovation drives competitive advantage. One particular technology has revolutionized how transportation companies sell products and services to travelers. This innovation has dramatically transformed the customer purchase journey, reducing friction and boosting impulse purchases. Test your knowledge of cutting-edge retail innovation in the transportation industry!

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Biometric payment systems allowing passengers to make purchases with facial recognition
Dynamic pricing algorithms that personalize offers based on customer data and travel context
Augmented reality apps that let passengers virtually try products before ordering to their seat
Subscription-based models offering unlimited access to premium in-flight services