Patches and updates
Business Analyst 9.1 Block Group Aggregation FAQ
This document provides helpful information in a question and answer format with regards to the geographic retrieval methodology used to calculate data in trade areas or rings.
ESRI's ArcGIS Business Analyst extension uses a Weighted Block Centroid geographic retrieval methodology to calculate data for rings and other trade areas. This FAQ discusses the basic principle and approach for this type of information processing.