Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/96533
Authors: 
Grajek, Michał
Kretschmer, Tobias
Year of Publication: 
2007
Series/Report no.: 
ESMT Working Paper 07-003
Abstract: 
We study the dynamics of usage intensity of second-generation cellular telephony over the diffusion curve. Specifically, we address two questions: First, can we draw conclusions about the underlying drivers of technology diffusion by studying usage intensity? Second, what is the effect of high penetration of previous generations and competing networks on network usage intensity? Using an operator-level panel covering 41 countries with quarterly data over 6 years, we find that heterogeneity among adopters dominates network effects and that different technological generations are complements in terms of usage, but substitutes in terms of subscription.
Subjects: 
Cellular telephony
diffusion
usage intensity
network effects
consumer heterogeneity
fixed-mobile substitutability
JEL: 
L1
L52
O38
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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