Ambre NICOLLE: "Consumer loss aversion and switching mobile tariffs"

Ambre NICOLLE: "Consumer loss aversion and switching mobile tariffs"


November 18, 2016 - 2:00 pm


November 18, 2016 - 3:00 pm


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On Friday 18 November, Ambre Nicolle (LAMETA and Télécom ParisTech) will present her research (joint with Lukasz Grzybowski and Christine Zulehner): “Consumer loss aversion and switching mobile tariffs” at the LCII.

The event will take place from 2pm to 3.30pm at the LCII room in the B33 building. Attendance is free of charge.


This paper explores consumer’s learning in a situation of both uncertainty of consumption and sophisticated pricing. In particular, we explore the impact of ’overusages’ and ’underusages’ in the decision to switch tariff. We focus on the possible asymmetry of their impacts, what could be interpreted as a particular risk aversion behavior, namely loss aver- sion. We rely on a data set of 110,000 mobile consumers from a single European operator, observed between 2011 and 2014. As a first step, we compute ranks for all available tariffs to order them according to the computed bill based on usage. Then, we compare ranks before and after switching. This enables to provide the magnitude and time needed for consumers learning. As a second step, we use discrete choice models to assess the impact of ’overusages’ and ’underusages’ on the decision to switch tariff. Our preliminary results show significant consumer learning in a relatively short time interval and little evidence of overage aversion. Nevertheless its magnitude is smaller than which is computed in Genakos et al (2015). We expect to define more sophisticated econometric framework to provide robust results and in particular disentangle risk aversion from loss aversion.


Liege Competition and Innovation Institute
University of Liege (ULg)
Quartier Agora
Place des Orateurs, 1, Bât. B 33
BE-4000 Liege

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