Dr. Michalakelis Christos

Assistant Professor

President of "Study in Greece" Initiative

Researcher of Technoeconomics Engineering

Dr. Michalakelis Christos

Assistant Professor

President of "Study in Greece" Initiative

Researcher of Technoeconomics Engineering

My Research Interests

Technoeconomics engineering

Technoeconomic of ICT

Technoeconomics of the Internet of Things – IoT

Technoeconomics of Cloud Computing

Diffusion and acceptance of innovations

Forecasting diffusion and acceptance of products and services in high technology markets

Socioeconomics

Managerial economics

My Publications

Journals

[J30] G. Dede, G. Fragiadakis, C. Michalakelis and T. Kamalakis, “Brokering Intelligence as a Service for the Internet of Things,” International Journal of Technology Diffusion, vol. 10, 2019. Download
[J29] E. Filiopoulou, P. Mitropoulou, N. Lionis, and C. Michalakelis, “On the efficiency of cloud providers: A DEA approach incorporating categorical variables,” IEEE Transactions on Cloud Computing, doi: 10.1109/TCC.2018.2850889, 2018. Download
[J28] G. Chatzithanasis and C. Michalakelis, “The Benefits of Cloud Computing – Evidence from Greece”, International Journal of Technology Diffusion, vol. 9(2), 2018. Download
[J27] G. Chatzithanasis and C. Michalakelis, “New technologies and their role in the development of entrepreneurship in regional cities”, Sustainable Development, Culture, Traditions Journal, 2017, 1(b). Download
[J26] P. Mitropoulou, E. Filiopoulou, C. Michalakelis and M. Nikolaidou, “Pricing cloud IaaS services based on a hedonic price index”, Computing, vol. 98(11), pp. 1075–1089, November 2016. Download
[J25] S. Lakka, T. Stamati, C. Michalakelis, and D. Anagnostopoulos, “Cross-national analysis of the relation of eGovernment maturity and OSS growth,” Technological Forecasting and Social Change, vol. 99, pp. 132-147, 2015 Download
[J24] C. Christodoulos, C. Michalakelis, and T. Sphicopoulos, “On the efficiency of grey modeling in early-stage technological diffusion forecasting,” International Journal of Technology Diffusion, vol. 6, pp. 1-11, 2015. Download
[J23] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos, “Broadband penetration as an economic growth accelerator,” International Journal of Electronic Governance, vol. 7, pp. 253-265, 2015. Download
[J22] M. Fokas, C. Michalakelis, and T. Sphicopoulos, “Forecasting the diffusion of Gigabit home networking in Europe,” International Journal of Technology Diffusion, vol. 5, pp. 39-53, July-September 2014. Download
[J21] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos, “Assessment of Information and Communications Technology maturity level,” Telecommunications Policy, Volume 37, Issue 1, February 2013, Pages 48-62. Download
[J20] S. Lakka, T. Stamati, C. Michalakelis, and D. Martakos, “What drives eGovernment growth? An econometric analysis on the impacting factors” International Journal of Electronic Governance, vol. 6, Issue 1, 2013, Pages 20-36. Download
[J19] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos, “Driving factors during the different stages of broadband diffusion: A non-parametric approach,” Technological Forecasting and Social Change, Volume 80, Issue 1, January 2013, Pages 88-105.  Download
[J18] S. Lakka, C. Michalakelis, D. Varoutas and D. Martakos, “Competitive dynamics in the operating systems market: modeling and policy implications”, Technological Forecasting and Social Change, Volume 80, Issue 1, January 2013, Pages 132-147 Download
[J17] C. Michalakelis, C. Christodoulos, D. Varoutas, and T. Sphicopoulos, “Dynamic estimation of markets exhibiting a prey-predator behavior,” Expert Systems with Applications, vol. 39, pp. 7690-7700, July 2012. Download
[J16] S. Lakka, C. Michalakelis, D. Varoutas and D. Martakos, “Exploring the determinants of the OSS market potential: The case of the Apache server”, Telecommunications Policy, vol. 36, pp. 51-68, February 2012. Download
[J15] C. Michalakelis and T. Sphicopoulos, “A population dependent diffusion model with a stochastic extension,” International Journal of Forecasting, vol. 28, pp. 587-606, 2012. Download
[J14] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos, “Digital Divide Gap Convergence in Europe”,Technology in Society, vol. 33, pp. 265-270, August–November 2011. Download
[J13] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos, “Utilization of Communications Network Potential: Public practices and effects,” Government Information Quarterly, vol. 29, pp. 182-191, April 2011. Download
[J12] V. Kyriakidou, C. Michalakelis, and D. Varoutas, “Applying Zipf’s power law over population density and growth as network deployment indicator,” Journal of Service Science and Management, vol. 4, pp. 132-140, 2011 Download
[J11] S. Lakka, T. Stamati, C. Michalakelis, and D. Martakos, “The Ontology of the OSS Business Model: An exploratory Study,” International Journal of Open Source Software and Processes (IJOSSP), vol. 3, pp. 39-59, 2011 Download
[J10] C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Modeling competition in the telecommunications market based on concepts of population biology”, IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications & Reviews, vol. 41, pp. 200-210, 2011 Download
[J9] C. Christodoulos, C. Michalakelis, and D. Varoutas, “On the combination of exponential smoothing and diffusion forecasts: An application to broadband diffusion in the OECD area”, Technological Forecasting and Social Change, vol. 78, pp. 163-170, 2011 Download
[J8] C. Michalakelis, G. Dede, D. Varoutas, and T. Sphicopoulos, “Estimating diffusion and price elasticity with application to telecommunications,” Netnomics, vol. 11, pp. 221-242, 2010. Download
[J7] C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Innovation diffusion with generation substitution effects,” Technological Forecasting and Social Change, 2010. 77(4): p. 541-557. Download
[J6] C. Christodoulos, C. Michalakelis, and D. Varoutas, “Forecasting with limited data: Combining ARIMA and diffusion models”. Technological Forecasting and Social Change, 2010. 77(4): p. 558-565. Download
[J5] C. Michalakelis,, D. Varoutas, and T. Sphicopoulos, “Diffusion models of mobile telephony in Greece,” Telecommunications Policy, vol. 32, pp. 234-245, 2008. Download
[J4] C. Michalakelis, G. Dede, D. Varoutas, and T. Sphicopoulos, “Impact of cross-national diffusion process in telecommunications demand forecasting” Telecommunication Systems, vol. 39, pp. 51-60, 2008. Download
[J3] C. Deligiorgi, A. Vavoulas, C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Ön the construction of price index and the definition of factors affecting tariffs of ADSL connections across Europe,” Netnomics, vol 8., numbers 1-2, pp. 171-183, 2008 Download
[J2] D. Varoutas, C. Deligiorgi, C. Michalakelis and Th. Sphicopoulos, “A hedonic approach to estimate price evolution of telecommunication services: Evidence from Greece”, Applied Economic Letters, vol. 15, no 14, pp 1131 – 1134, Nov 2008. Download
[J1] C. Deligiorgi, C. Michalakelis, A. Vavoulas, and D. Varoutas, “Nonparametric estimation of a hedonic price index for ADSL connections in the European market using the Akaike Information Criterion,” Telecommunication Systems, vol. 36, pp. 173-179, Dec 2007.  Download

 

Books – Book Chapters

[B9] E. Kogia, S. Liberopoulou, N. Alamanos, V. Pierros, and C. Michalakelis, “RefConnect – A Mobile Social Network for Refugees,” in Exclusion and Inclusion in International Migration: Power, Resistance and Identity, A. Lloyd Teke, Ed., ed: Transnational Press London, 2019. Download
[B8] G. Dede, G. Chatzithanasis, T. Kamalakis and C. Michalakelis“Brokering Cloud Computing: Pricing models and simulation approaches”, in Trends, and Applications in Corporate Finance and Accounting, A. Christopoulos, P. Kalantonis, and C. Zopounidis, Eds., ed: IGI Global, 2018 Download
[B7] P. Mitropoulou, E. Filiopoulou, M. Nikolaidou and C. Michalakelis, “Pricing IaaS: A Hedonic Price Index Approach,” in Economics of Grids, Clouds, Systems, and Services L. C. Pham et al. (Eds.): GECON 2017, Ed., ed: Springer International Publishing AG 2017, 2017, pp. 18-28. Download
[B6] E. Filiopoulou, P. Mitropoulou, C. Michalakelis and M. Nikolaidou, “The Rise of Cloud Brokerage: Business Model, Profit Making and Cost Savings”, in Economics of Grids, Clouds, Systems, and Services, J. Á. Banares., ed: Springer International Publishing AG, 2017, pp. 19-32. Download
[B5] G. J. Barbosa, C. Michalakelis, and H. Arabnejad, “Resource Sharing for Scientific Workflows on Computational Grids,” in Grid Computing: Techniques and Future Prospects, J. G. B. a. I. Dutra, Ed., ed: Nova Science Publishers, 2015, pp. 45-70 Download
[B4] S. Lakka, C. Michalakelis, and D. Martakos, “Impact of OSS on Social and Economic Welfare,” in Handbook on Social Change, B. H. S. a. S. E. Corbin, Ed., ed: Novapublishers, 2009, pp. 1-16. Download
[B3] C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Demand Evolution of Mobile and Broadband Telecommunication Services in Eastern and Central Europe and the Influence of Western Europe’s Penetration,” in Business Development and Markets in the European Economic Area, D. G. Shamseddin G. Gadziyev, Yurij Bilan, Bruno S. Sergi, Ed. Kyiv: Foundation of International Studies, 2009.  Download
[B2] D. Varoutas, K. Deligiorgi, C. Michalakelis and  T. Sphicopoulos, Price Indexes for Telecom Market: An Application to European Market of Leased Lines, in Business Development and Markets in the European Economic Area, D.G. Shamseddin G. Gadziyev, Yurij Bilan, Bruno S. Sergi, Editor. 2009, Foundation of International Studies: Kyiv. Download
[B1] D. Varoutas, C. Michalakelis, A. Vavoulas, and C. Deligiorgi, “Diffusion forecasting and price evolution of broadband telecommunication services in Europe,” in Handbook of Research on Global Diffusion of Broadband Data Transmission, Dwivedi, Ed.: IGI Global, 2008.  Download

 

International Conferences

[C24] G. Dede, D. Grigoropoulos, G. Loupatatsis, T. Kamalakis, and C. Michalakelis, “Towards a Roadmap for Cloud TV Services in the Internet of Things Era,” presented at the GECON 2019 – 16th International Conference on Economics of Grid , Cloud, Systems and Services, Leeds, UK, 2019. Download
[C23] G. Loupatatzis, D. Grigoropoulos, G. Dede, T. Kamalakis, and C. Michalakelis, “Technoeconomic Analysis of Cloud TV,” presented at the Innovation, Entrepreneurship and Knowledge Academy 2109 – INEKA 2019, Verona, Italy, 2019. Download
[C22] E. Kogia, S. Liberopoulou, N. Alamanos, V. Pierros, and C. Michalakelis, “RefConnect – A Mobile Social Network for Refugees,” in Exclusion and Inclusion in International Migration: Power, Resistance and Identity, A. Lloyd Teke, Ed., ed: Transnational Press London, 2019. Download
[C21] M. Nikolaidou and C. Michalakelis, “Techno-economic Analysis of SysML Models,” presented at the ISSE 2017 – 2017 IEEE International Symposium on Systems Engineering, Vienna, Austria, 2017. Download
[C20] A. Makris, E. Petraki, C. Dimitropoulos, S. Liberopoulou, K. Tserpes, K. and C. Michalakelis “Mobile Application for asylum seekers,” The Migration Conference 2017, Athens, Greece, 2017. Download
[C19] E. Filiopoulou, P. Mitropoulou, , C. Michalakelis and M. Nikolaidou, “Pricing IaaS: A hedonic price index approach,” presented at the Gecon 2017, 14th International Conference on Economics of Grids, Cloud, Systems and Services, Biarritz, France, 2017. Download
[C18] E. Filiopoulou, P. Mitropoulou, , C. Michalakelis and M. Nikolaidou, “The rise of cloud brokerage Business model, profit making and cost savings”, GECON 2016, The 13th International Conference on Economics of Grid, Cloud, Systems and Services, Athens, Greece, September 22-26 2016 Download
[C17] C. Michalakelis, M. Nikolaidou, J. Barbosa, and K. Wood, “CCTE Workshop Preface”, Cloud Engineering Workshop (IC2EW), 2016 IEEE International Conference on Cloud Engineering, Berlin, Germany, 4-8 April, 2016 Download
[C16] E. Filiopoulou, P. Mitropoulou, A. Tsadimas, C. Michalakelis, M. Nikolaidou and D. Anagnostopoulos, “Integrating cost analysis in the cloud: A SoS approach”,  IIT’15- 11th International Conference on Innovations in Information Technology, Dubai, UAE , November 01-03, 2015 Download
[C15] S. Lakka, C. Michalakelis, T. Stamati, and D. Anagnostopoulos, “A framework for the classification of Could Computing Business Models”, PCI 2015 – The 19th Panhellenic Conference on Informatics, Athens, Greece, 1-3 October 2015 Download
[C14] K. Katsantonis, P. Mitropoulou, E. Filiopoulou, C. Michalakelis, and M. Nikolaidou, “Cloud computing and economic growth”, PCI 2015 – The 19th Panhellenic Conference on Informatics, Athens, Greece, 1-3 October 2015. Download
[C13] P. Mitropoulou, E. Filiopoulou, S. Tsaroucha, C. Michalakelis, and M. Nikolaidou, “A Hedonic Price Index for Cloud Computing Services,” presented at the CLOSER 2015 – 5th International Conference on Cloud Computing and Services Science, Lisbon, Portugal, 2015 Download
[C12] S. Lakka, T. Stamati, and C. Michalakelis, “A cross country comparison on the factors determining OSS diffusion,” PCI 2014 – The 18th Panhellenic Conference on Informatics, Athens, Greece, 2-4 October 2014. Download
[C11] E. Filiopoulou, P. Mitropoulou, and C. Michalakelis, “SMEs in the cloud: The impact of cloud adoption on economic growth and development,” in ICEIRD 2014, The 7th International Conference for Entrepreneurship, Innovation and Regional Development, Nicosia, Cyprus June 5-6, 2014. Download
[C10] C. Christodoulos, C. Michalakelis and D. Varoutas, “A comparison of time-series models versus aggregate diffusion models for forecasting the internet use adoption”, 23ο Panhellenic Conference in Statistics and Internet:, Veria, Greece, 7-11 April 2010 Download
[C9] C. Christodoulos, C. Michalakelis, et al. (2010). “Estimation of future prepaid – postpaid mobile telephony equilibrium in the OECD area”, 9th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE), 7-9June 2010, Ghent, Belgium. Download
[C8] C. Christodoulos, C. Michalakelis, and D. Varoutas. “An empirical model for later entrants market share development in the mobile phone market: An application in the Greek market”. in 8th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2009). 15- 16 June 2009. Helsinki, Finland. Download
[C7] P. Koutroumpis, C. Michalakelis, and D. Varoutas. “Broadband hedonic price index:  a firm-level study.” in 8th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2009). 15 -16 June 2009. Helsinki, Finland. Download
[C6] V. Kyriakidou, C. Michalakelis, and T. Sphicopoulos. “A digital divide convergence rate estimation methodology.” in 7th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2008). June 2008. Paris, France. Download
[C5] C. Michalakelis, G. Dede, A. Zerva, D. Varoutas, and T. Sphicopoulos, “Development of a demand model for the simultaneous estimation of the interaction between a product diffusion and price: an application to telecommunications,” in 6th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2007) Art. no. 4389905, Helsinki, Finland, 2007. Download
[C4]  N. Deligiorgi, A. Vavoulas, C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Factors and characteristics that affect ADSL tariffs,” in 5th Conference of Telecommunication, Media and Internet Techno-Economics (CTTE2006), Athens, Greece, 8-9 June, 2006. Download
[C3] N. Deligiorgi, A. Vavoulas, C. Michalakelis, D. Varoutas, and T. Sphicopoulos, “Nonparametric Estimation of a hedonic price index for ADSL connections in the European market using the Akaike Information Criterion,” in Networking and E-Commerce Conference, NAEC 2006, Lake Garda, Italy, Oct. 2006. Download
[C2] C. Michalakelis, G. Dede, D. Varoutas, and T. Sphicopoulos, “Impact of cross-national diffusion process in telecommunications demand forecasting,” in Networking and E-Commerce Conference, NAEC 2005, Garda, Italy, 2005, pp. 632-640. Download
[C1] V. N. Alexandrov, J. Libano-Alonso, and C. Michalakelis, “Efficient Parallel Branch and Bound Algorithms for Integer and Mixed Integer Linear Programming Problems,” inProceedings of Reading Workshop on Parallel Computing, Reading, UK, June 1996. Download

Other

[O2] V. Kyriakidou, C. Michalakelis, D. Varoutas and T. Sphicopoulos, “A digital divide convergence rate estimation methodology-The estimation of concentration indices in mobile technology”, in COST 605 Meeting, Zurich, Switzerland. 24th-26th September 2008.  Download
[O1] V. Kyriakidou, C. Michalakelis and D. Varoutas. “Estimating Digital Divide Convergence. in The Good, the Bad and the Challenging, The user and the future of information and communication technologies”, A transdisciplinary conference organised by COST Action 298 “Participation in the Broadband Society”. 13th – 15th May 2009. Copenhagen, Denmark.  Download
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