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- Annafari, Tsani, 1974, et al.
(author)
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Intergenerational effects of mobile service diffusion in Sweden
- 2011
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In: 5th ITS Africa-Asia-Australasia Regional Conference, Perth,WesternAustralia,November13-16.
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Conference paper (other academic/artistic)abstract
- This paper addresses the intergenerational effects of mobile telephone service diffusion in Sweden. Using the Norton-Bass and Islam-Meade models, it plots annual mobile service penetration rate data from the year 1956 to 2010 to explain the pattern of mobile telephone service diffusion. The results show that only Norton-Bass model could achieve convergence status in the program iteration. The model fit indicates that Norton-Bass model is still reasonably good for explaining the intergenerational diffusion process. The results also show that the coefficient of innovation p has a lower value than the coefficient of imitation q. This suggests that the diffusion process is affected more by external factors, such as word of mouth, than by inherent innovativeness of users. Furthermore, the results also indicate that each type of technology has a different market potential with the later technology having higher market potential then the previous. This suggests that there is a positive intergenerational effect on the adoption decision from the proportion already adopted. Furthermore, the study also recognizes that the intergenerational process of mobile communication technology diffusion is comparable to the evolutionary process of technology in the sense that the process shows two main evolutionary features, i.e. the emergence of technology variation across generation and the selection process from earlier generation of technology to the new one. Therefore, evolutionary framework may be applicable to understand the diffusion process of a technology.
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| 2. |
- Annafari, Tsani, 1974, et al.
(author)
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Who needs more subscriptions? An empirical analysis of the Thailand mobile phone market
- 2010
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In: Proceedings of the 18th Bienial Conference of the International Telecommunication Society, 27-30 June 2010, Tokyo Japan.
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Conference paper (other academic/artistic)abstract
- Multiple mobile phone subscriptions are a characteristic of mobile phone penetration rates in Thailand. This offers an opportunity to identify the consumers’ niche that would be interested in this consumption style. The present study aims to identify the profile of subscribers who intend to have multiple mobile phone subscriptions, for the purposes of consumer segmentation and policy targeting. Using multinomial logistic regression of data from the Thailand National Telecommunications Commission (NTC) survey 2009, the study finds that subscribers who already have multiple subscriptions tend to add more subscriptions compared to those who have only one subscription. This indicates that multiple subscriptions are probably not a temporary behavior since those who have multiple subscriptions tend to keep their status as multiple subscribers. It suggests that the mobile phone operators and the regulator should carefully consider the emergence of quasi-subscribers as the result of multiple subscriptions when evaluating market shares and determining Significant Market Power (SMP). Furthermore, other identified characteristics of the subscribers who intend to add more subscriptions are useful as a basis for consumer segmentation and policy targeting.
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| 3. |
- Annafari, Tsani, 1974, et al.
(author)
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Why is the diffusion of mobile service not an evolutionary process?
- 2012
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In: In I. Lee (Ed.), Mobile Services Industries, Technologies, and Applications in the Global Economy. Hershey, PA, USA: IGI Global.. ; , s. 25 - 38
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Book chapter (other academic/artistic)abstract
- This study aims to explain whether the diffusion of innovation, particularly in the case of mobile service diffusion, can be considered an evolutionary process. To justify this proposition, the mobile service use is considered as artifact-activity couple which represents a dynamic combination of the artifact, i.e. the mobile service and handset, with the immediate set of individual routines that sustain the use and development of mobile technology. This entity also plays a role as a unit of cultural transmission or a unit of imitation, which analogous to a meme. With this analogy, the diffusion of mobile service can be viewed as a cultural evolution process where its chief mechanism of survival is learning. Thus as a successful innovation, the mobile service use can be directly taught and spread to others through cultural transmission, i.e. mimicking process. In this process meme plays role as both a replicator and interactor. As a replicator a meme pass its most of its structure in sequential replications. As an interactor a meme make a cohesive interaction with its environment in such a way to generate a differentiated replication. This will lead to selection which in turn can give a rise to a lineage. These processes are identical to selective retention and variation, which are the main features of evolutionary process and determine the dynamic pattern in diffusion process. This indicates that the mobile service diffusion can be viewed as an evolutionary process. Therefore the essential feature of evolutionary conceptions should be incorporated when modeling the diffusion of the mobile service to bring a more realistic explanation of the diffusion process.
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| 4. |
- Ard-Paru, Nattawut, 1976, et al.
(author)
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Collective use of spectrum - Pros and Cons
- 2009
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In: THE GOOD, THE BAD AND THE CHALLENGING, May 13-15,2009, Copenhagen, Denmark.
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Conference paper (other academic/artistic)abstract
- The paper provides a literature review of collective use of spectrum (CUS) by consolidating the various perspectives from relevant literatures and the result of the public consultation from the Radio Spectrum Policy Group (RSPG) on November 19, 2008. The paper provides an overview of spectrum management and spectrum assignment approaches plus an elaborate of the advantages and disadvantages of CUS. In addition, further implementation issues are the frequency assignment and the amount of spectrum for CUS.
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