New York, Chicago, Milwaukee, and Detroit
Godfrey and Kahn
The American Customer Satisfaction Index (ACSI) is a national indicator of the quality of economic output for goods and services as experienced by consumers of that output.
The Index uses technology developed at the University of Michigan by a team of researchers led by Claes Fornell, the Distinguished Donald C. Cook Professor of Business. Fornell is the most cited expert in the world on customer satisfaction and Customer Experience Management, according to Google Scholar. The Index currently tracks customer satisfaction with more than 400 of the largest corporations in the U.S. marketplace.