Results 11 to 20 of about 76,162 (363)
Merger Simulation in Mobile Telephony in Portugal [PDF]
SSRN Electronic Journal, 2006 This article assesses the unilateral effects on prices of a merger in the Portuguese mobile telephony market. We use aggregate quarterly data from 1999 to 2005 and a nested logit model to estimate the price elasticities of demand and the marginal costs of subscription of mobile telephony. Given these estimates, we simulate the effects of the merger. We
Lukasz Grzybowski, Pedro Pereira
core +7 more sources
Speech enhancement for mobile telephony [PDF]
IEEE Transactions on Vehicular Technology, 1990 The properties of noise fields in automobile interiors are discussed with a view toward speech enhancement for voice-activated mobile telephony. The limitations on performance of adaptive noise cancellation are explained in the context of the spatial correlation properties of the noise field.
M.M. Goulding, John Bird
openalex +4 more sources
Uses and Attitudes of Young People Toward Technology and Mobile Telephony [PDF]
, 2003 This paper aims at showing how young people are developing new and innovative ways of interacting using technology. Previous literature shows that technology adoption depends not only on the technology per se, but also on situational and contextual ...
Josep Valor, Sandra Sieber
openalex +3 more sources
Screening competition in mobile telephony†
Applied Economics, 2010 This paper presents a simple method for screening competition in differentiated products oligopoly with a small number of competitors. In many situations, estimation of price elasticities of demand may be impossible due to difficulties in defining demand or missing data on sales.
Lukasz Grzybowski
openalex +6 more sources
Research on Mobile Network Parameters Using Unmanned Aerial Vehicles [PDF]
SensorsThe study of phenomena related to the propagation of electromagnetic waves is a necessity with the development of mobile telephony networks. This paper deals with the problem of the quality of mobile telephony signals.
Jan Warczek +4 more
doaj +2 more sources
Diffusion of digital mobile telephony: Are developing countries different? [PDF]
Telecommunications Policy, 2005 Factors determining the diffusion of digital mobile telephony across developed and developing countries are studied with the aid of a Gompertz model. After controlling for other factors, the speed of diffusion per se is not significantly different between the two groups of countries.
Petri Rouvinen
openalex +7 more sources
Improving Air Interface User Privacy in Mobile Telephony [PDF]
arXiv, 2015 Although the security properties of 3G and 4G mobile networks have significantly improved by comparison with 2G (GSM), significant shortcomings remain with respect to user privacy. A number of possible modifications to 2G, 3G and 4G protocols have been proposed designed to provide greater user privacy; however, they all require significant ...
D Forsberg +3 more
arxiv +3 more sources
Analysis of Mobile Telephony Development in Croatia
Promet (Zagreb), 2012 Mobile telephony appeared in 1955 and its development inthe world and in Croatia can be divided into two generations:analogue mobile system and digital mobile systems.
Slavko Šarić +2 more
doaj +4 more sources
Testing the 'Waterbed' Effect in Mobile Telephony [PDF]
SSRN Electronic Journal, 2008 This paper examines the impact of regulatory intervention to cut termination rates of calls from fixed lines to mobile phones. Under quite general conditions of competition, theory suggests that lower termination charges will result in higher prices for mobile subscribers, a phenomenon known as the waterbed effect.
Tommaso Valletti +3 more
openaire +9 more sources
Young Entrepreneurs in the Mobile Telephony Sector in Ghana: From Necessities to Aspirations [PDF]
Journal of African Business, 2017 Despite increasing research interest in the mobile telephony sector, only a few studies have devoted attention to informal businesses in the sector.
George Owusu, Katherine V Gough
exaly +3 more sources