An Estimation of the Pattern of Diffusion of Mobile Phones: The Case of Colombia

Public resale of mobile telephone minutes: An alternative access for low-income households in Colombia

“…1-B and 1-C). For a description of the evolution of Colombian mobile communications, see Gamboa and Otero [8].…”

Key issues in the development of mobile telephony in Botswana (1998–2011): An empirical investigation

“…Rouvinen (2006) also pointed out that it is sometimes the competition among mobile network operators and the slow rate of diffusion of technologies that are the main determinants. In a study conducted by Gamboa and Otero (2009: 613) in Colombia, it was reported that strategic mobile telephony operational policies guided the licensing of network operators and contexts for competition in 1991, such that there were provisions for ‘private ownerships’ and ‘public–private ownerships’. These policies were fundamental in helping to position the mobile telephony sector countrywide.…”

“…These policies were fundamental in helping to position the mobile telephony sector countrywide. According to Gamboa and Otero (2009), this was followed by regulatory frameworks which ensured that two different networks, between Celumovil, Celumovil Costa, Comcel, Occel, Cocelco and Celcaribe, operated in each one of the three regions in Colombia. Although Gamboa and Otero (2009) did not mention the effectiveness of the Colombian situation in this regard, one would conceive that each of the three regions in Columbia was efficiently served, hence the diffusion of mobile telephony and related services increased dramatically.…”

“…According to Gamboa and Otero (2009), this was followed by regulatory frameworks which ensured that two different networks, between Celumovil, Celumovil Costa, Comcel, Occel, Cocelco and Celcaribe, operated in each one of the three regions in Colombia. Although Gamboa and Otero (2009) did not mention the effectiveness of the Colombian situation in this regard, one would conceive that each of the three regions in Columbia was efficiently served, hence the diffusion of mobile telephony and related services increased dramatically. In Vietnam, for instance, the mobile telephony market is said to have boomed once the Vietnamese government introduced the ‘market-opening policy’ to allow more operators into the market, thereby promoting market competition, and set up ‘pricing control regulations which helped to control the monopoly in pricing plans’ (Hwang et al, 2009: 535).…”

Free Entry, Market Diffusion, and Social Inefficiency with Endogenously Growing Demand

“…See Griliches (1957), Mansfield (1968), and Stoneman (2002) for a survey of technological diffusion. In addition, the S-shaped interhousehold diffusion is treated as a stylized fact in the marketing literature and found in color televisions (Karshenas and Stoneman, 1992), fax machines (Economides and Himmelberg, 1995), clothes dryers (Krishnan, Bass, and Jain, 1999), and mobile phones (Gamboa and Otero, 2009). 3 See also Vettas (1998), who develops a model of two-sided learning to explain S-shaped diffusion.…”