  This study explores how the relatedness density of amenities influences
consumer buying patterns, focusing on multi-purpose shopping preferences. Using
Seoul's credit card data from 2018 to 2023, we find a clear preference for
shopping at amenities close to consumers' residences, particularly for trips
within a 2 km radius, where relatedness density significantly influences
purchasing decisions. The COVID-19 pandemic initially reduced this effect at
shorter distances but rebounded in 2023, suggesting a resilient return to
pre-pandemic patterns, which vary over regions. Our findings highlight the
resilience of local shopping preferences despite economic disruptions,
underscoring the importance of amenity-relatedness in urban consumer behavior.
