This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.

American Customer Satisfaction Index, 2001 (ICPSR 4602)

Principal Investigator(s): Fornell, Claes, University of Michigan. Ross School of Business. National Quality Research Center


The American Customer Satisfaction Index (ACSI) is a uniform and independent measure of household consumption experience. The ACSI tracks trends in customer satisfaction and provides benchmarking insights into the consumer economy for companies, industry trade associations, and government agencies. It is based on modeling customer evaluations of the quality of goods and services that are purchased in the United States and produced by both domestic and foreign firms that have substantial United States market shares. The ACSI model is a set of causal equations that link customer expectations, perceived quality, and perceived value to customer satisfaction. In turn, satisfaction is linked to consequences as defined by customer complaints and customer loyalty -- measured by price tolerance and customer retention. Customer expectations combine customers' experiences with a product or service and information about it via media, advertising, salespersons, and word-of-mouth. Customer expectations influence the evaluation of quality and forecast how well the product or service will perform. Perceived quality of a product or service is measured through questions on its overall quality, reliability, and the extent to which it meets the customer's needs. Perceived value is measured through questions on overall price, given the quality, and overall quality, given the price. Customer complaints activity is measured as the percentage of respondents who reported a problem with the measured company's product or service within a specified time frame. Satisfaction has an inverse relationship to customer complaints. Customer loyalty is measured through questions on the likelihood that customers will purchase a company's products or services at various price points. The ACSI is produced through a partnership of the University of Michigan Ross School of Business, the American Society for Quality (ASQ), and the international consulting firm, CFI Group. Background variables include age, education, number of family members, Hispanic origin, race, household income, sex, industry, and sector of the economy.

Series: American Customer Satisfaction Index Series

Access Notes

  • This study is currently not available. Additional information may be available in Data Collection Notes.

    (1) These data were collected quarterly and are broken into four datasets covering the year 2001. The variable, QTR, in the dataset is the economic quarter to which the data refer. (2) For additional information, including related research, visit the ACSI Web site.


This study is currently not available. Please check periodically to see if the status has changed.

Study Description


Fornell, Claes. American Customer Satisfaction Index, 2001. ICPSR04602-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2007-02-01. http://doi.org/10.3886/ICPSR04602.v1

Persistent URL: http://doi.org/10.3886/ICPSR04602.v1


Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

  • American Society for Quality (N004885)
  • CFI Group USA, LLC

Scope of Study

Subject Terms:   advertising, consumer attitudes, consumer behavior, consumer expectations, consumer expenditures, consumers, expenses, marketing, prices, products, purchasing, satisfaction

Geographic Coverage:   United States

Time Period:  

  • 2001

Date of Collection:  

  • 2001

Unit of Observation:   individual

Universe:   American consumers aged 18 to 84 living in households with telephones in the continental United States.

Data Types:   survey data

Data Collection Notes:

(1) These data were collected quarterly and are broken into four datasets covering the year 2001. The variable, QTR, in the dataset is the economic quarter to which the data refer. (2) For additional information, including related research, visit the ACSI Web site.


Sample:   Households were selected by random-digit dialing. Within households, the respondent selected was the adult with the nearest birthday to the date of the interview who had purchased or consumed specific products and services within specified, recent time periods varying from three months to three years, depending on the product or service. The probability sample selected to represent the American Customer Satisfaction Index (ACSI) for each company was based on approximately 250 customer interviews.

Mode of Data Collection:   computer-assisted telephone interview (CATI)


Original ICPSR Release:  


Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics