Methodology Statements

• 2010/2015 Esri Demographic Update
  Current events, such as rising unemployment, lower home prices, stagnating income, and regional distinctions, such as the availability of jobs or affordable housing, affect the social and economic trends that are captured in the 2010/2015 demographic data updates.
  2009/2014 Esri Demographic Update
  2008/2013 Demographic Update
• 2010 Business Locations and Business Summary
  This document describes how Esri extracts its business data from a comprehensive list of businesses licensed from Infogroup.
• 2010 Consumer Spending
  This methodology white paper describes how Esri integrates data from the latest Consumer Expenditure Surveys (CEX)—the Diary Survey and the Interview Survey—from the Bureau of Labor Statistics with Tapestry Segmentation data to provide a comprehensive database about all consumer expenditures.
• 2010 Diversity Index
  This white paper defines the U.S. Diversity Index and discusses the features of the Esri race and ethnic origin database that is supplemented by a diversity index.
• 2010 Tapestry Segmentation for Block Groups and ZIP+4s
  This document describes how Esri uses the traditional statistical methodology of cluster analysis with the latest data mining techniques to create Tapestry Segmentation at smaller geographic levels.
• 2009 Retail MarketPlace
  This document explains how Esri built the Retail MarketPlace database to provide a complete assessment of the retail marketplace including a measure of the difference between supply and demand by industry sector.
• 2009 Market Potential
  This document explains how Esri calculates its Market Potential data by combining Esri's Tapestry Segmentation data with consumer survey data from Mediamark Research & Intelligence LLC. Doublebase 2008.
• 2006/2011 Gulf Coast Updates
  This white paper details how Esri's data development team created a new methodology to reveal the demographic changes in the Gulf Coast region from Hurricanes Katrina, Rita, and Wilma.