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dc.contributor.authorAndersson, Kjetil
dc.contributor.authorForos, Øystein
dc.contributor.authorSteen, Frode
dc.date.accessioned2006-07-04T08:39:08Z
dc.date.available2006-07-04T08:39:08Z
dc.date.issued2005
dc.identifier.issn0804-6824
dc.identifier.issn0801-1125
dc.identifier.urihttp://hdl.handle.net/11250/162670
dc.description.abstractText messaging has become an important revenue component for European and Asian mobile operators. We develop a simple model of demand for mobile services incorporating the existence of call externalities and network effects. We show that when incoming messages and calls stimulate outgoing communications, services that are perceived as substitutes, such as mobile text and voice, may evolve into complements in terms of the price effect when the network size becomes large. We estimate the demand for text messaging in the Norwegian market and find tha t the cross-price effect of voice depends on the network size. Voice is a substitute for text messages for small network sizes, and a complement for large network sizes.en
dc.format.extent67284 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoengen
dc.publisherNorwegian School of Economics and Business Administration. Department of Economicsen
dc.relation.ispartofseriesDiscussion paperen
dc.relation.ispartofseries2005:27en
dc.subjecttext messagingen
dc.subjectcross-price elasticityen
dc.subjectcall externalitiesen
dc.subjectpositive feedback effectsen
dc.subjectnetwork effectsen
dc.titleText and voice : complements, substitutes or both?en
dc.typeWorking paperen


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