Christos Michalakelis

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This study contributes to the current literature of eGovernment adoption, by proposing a parsimonious, yet comprehensive model, based on three socioeconomic theories namely, institutionalism, endogenous and exogenous growth. Using this framework as the guiding theoretical lens, critical factors are identified, while their impact is evaluated with an(More)
a r t i c l e i n f o a b s t r a c t Forecasting diffusion of new technologies is usually performed by the means of aggregate diffusion models, which tend to monopolize this area of research and practice, making the alternative approaches, like the Box-Jenkins, less favourable choices due to their lack of providing accurate long-term predictions. This(More)
—Based on concepts of ecology modeling and specifically on population biology, a methodology for describing a high-technology market's dynamics is developed and presented. The importance of the aforementioned methodology is its capability to estimate and forecast the degree of competition, market equilibrium , and market concentration, the latter expressed(More)
Cloud computing, as an innovative business model, has experienced rapid diffusion across the international business world, offering many benefits to both the demand and the supply side of the ICT market. In particular, the public cloud approach receives more attention and the Infrastructure as a Service (IaaS) model is expected to be the fastest growing(More)
This chapter is concerned with the methodologies for the study of the diffusion patterns and demand estimation, as well the pricing schemas for broadband telecommunication services in Europe. Along with the introduction of diffusion models and price indexes which can represent broadband convergence and diversity, a description of the theoretical models and(More)
Cloud computing is a modern style of innovation in network environment which takes the advantage of multi-technologies as distributed systems, wireless communication, parallel processing in term of providing service architecture. The main services are concerned about sharing communication and resources. Cloud computing offers scalable access, elastic and(More)