This document discusses factors retailers consider when selecting store locations and evaluating trade areas. Key factors include economic conditions, competition, fit with the target market, and operating costs of the area. When evaluating a specific site, retailers examine characteristics like traffic flow, location, and costs. They also analyze the trade area to understand customer demographics, size of the primary trading zone, and sales potential. Common tools used include census data, GIS mapping, and models like Huff's gravity model or regression analysis.