Complementary Use of Rasch Models and Nonlinear Principal Components Analysis in the Assessment of the Opinion of Europeans About Utilities |
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Authors: | Pier Alda Ferrari Silvia Salini |
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Institution: | (1) Department of Economics, Business and Statistics, University of Milan, Via Conservatorio 7, 20122 Milan, Italy;(2) Department of Statistics, University of Udine, Via Treppo 18, 33100 Udine, Italy;; |
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Abstract: | Two non-standard techniques – the Rasch Model and Nonlinear Principal Components Analysis – originally proposed in other fields
are presented and discussed to measure the opinion of European citizens about utilities. The Eurobarometer survey data are
thus considered. The potential of both methods and their complementary use are highlighted; in particular the methods allow
the questionnaire to be calibrated, the role of different services and aspects of service to be established, and the consumer
satisfaction to be assessed and compared among European countries, different years and services. |
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Keywords: | |
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