References [1] Hayes, B.: Cloud Computing. Commun ACM. 51, 9–11 (2008). [2] Vaquero, L.M., Rodero-Merino, L., Caceres, J., Lindner, M.: A Break in the Clouds: Towards a Cloud Definition. SIGCOMM Comput Commun Rev. 39, 50–55 (2008). [3] Armbrust, M., Stoica, I., Zaharia, M., Fox, A., Griffith, R., Joseph, A.D., Katz, R., Konwinski, A., Lee, G., Patterson, D., Rabkin, A.: A view of cloud computing. Commun. ACM. 53, 50 (2010). [4] Cusumano, M.: Cloud Computing and SaaS As New Computing Platforms. Commun ACM. 53, 27–29 (2010). [5] Yang, X., Nasser, B., Surridge, M., Middleton, S.: A business-oriented Cloud federation model for real-time applications. Future Gener. Comput. Syst. 28, 1158–1167 (2012). [6] Mell, P.M., Grance, T.: SP 800-145. The NIST Definition of Cloud Computing. National Institute of Standards & Technology, Gaithersburg, MD, United States (2011). [7] Babcock, C.: Management Strategies for the Cloud Revolution: How Cloud Computing Is Transforming Business and Why You Can’t Afford to Be Left Behind. McGraw-Hill, New York (2010). [8] Garrison, G., Kim, S., Wakefield, R.L.: Success factors for deploying cloud computing. Commun. ACM. 55, 62 (2012). [9] Brynjolfsson, E., Hofmann, P., Jordan, J.: Cloud computing and electricity: beyond the utility model. Commun. ACM. 53, 32 (2010). [10] Weinman, J.: Cloudonomics, + Website: The Business Value of Cloud Computing. Wiley, Hoboken, N.J (2012). [11] Bermbach, D., Kurze, T., Tai, S.: Cloud Federation: Effects of Federated Compute Resources on Quality of Service and Cost*. 2013 IEEE International Conference on Cloud Engineering (IC2E). pp. 31–37 (2013). [12] Falasi, A.A., Serhani, M.A., Elnaffar, S.: The Sky: A Social Approach to Clouds Federation. Procedia Comput. Sci. 19, 131–138 (2013). [13] Bent, K., Burke, S.: Cisco Embraces Amazon, Microsoft With InterCloud Infrastructure Software, http://www.crn.com/news/networking/240165714/cisco-embraces-amazon-microsoft-with-intercloud-infrastructure-software.htm/pgno/0/1 (Accessed on July 2014). [14] Nalebuff, B.J.: Co-Opetition. Currency Doubleday, New York (1997). [15] Evans, D.S., SCHMALENSEE, R.: The Industrial Organization of Markets with Two-Sided Platforms. Compet. Policy Int. 3, 151–179 (2005). [16] Varian, H.R.: Microeconomic Analysis, Third Edition. W. W. Norton & Company, New York (1992). [17] Nam, C., Kwon, Y., Kim, S., Lee, H.: Estimating scale economies of the wireless telecommunications industry using EVA data. Telecommun. Policy. 33, 29–40 (2009). [18] Asai, S.: Scale economies and scope economies in the Japanese broadcasting market. Inf. Econ. Policy. 18, 321–331 (2006). [19] Kristensen, T., Olsen, K.R., Kilsmark, J., Lauridsen, J.T., Pedersen, K.M.: Economies of scale and scope in the Danish hospital sector prior to radical restructuring plans. Health Policy Amst. Neth. 106, 120–126 (2012). [20] Pollitt, M.G., Steer, S.J.: Economies of scale and scope in network industries: Lessons for the UK water and sewerage sectors. Util. Policy. 21, 17–31 (2012). [21] Floudas, C.A., Visweswaran, V.: Quadratic Optimization. In: Horst, R. and Pardalos, P.M. (eds.) Handbook of Global Optimization. pp. 217–269. Springer US (1995). [22] Bayón, L., Otero, J.A., Ruiz, M.M., Suárez, P.M., Tasis, C.: The Profit Maximization Problem in Economies of Scale. J Comput Appl Math. 236, 3065–3072 (2012). [23] Brumec, S., Vrček, N.: Cost effectiveness of commercial computing clouds. Inf. Syst. 38, 495–508 (2013). [24] Künsemöller, J., Karl, H.: A game-theoretic approach to the financial benefits of infrastructure-as-a-service. Future Gener. Comput. Syst. [25] Iansiti, M., Levien, R.: Strategy as ecology. Harv. Bus. Rev. 82, 68–78, 126 (2004). [26] Gawer, A., Cusumano, M.A.: Platform Leadership: How Intel, Microsoft, and Cisco Drive Industry Innovation. Harvard Business Review Press, Boston, Mass (2002). [27] Caillaud, B., Jullien, B.: Chicken and Egg: Competition Among Intermediation Service Providers. Rand J. Econ. 309–329 (2003). [28] Rochet, J.-C., Tirole, J.: Platform Competition in Two-Sided Markets. J. Eur. Econ. Assoc. 1, 990–1029 (2003). [29] Katz, M.L., Shapiro, C.: Network Externalities, Competition, and Compatibility. Am. Econ. Rev. 75, 424–440 (1985). [30] Farrell, J., Saloner, G.: Installed Base and Compatibility: Innovation, Product Preannouncements, and Predation. Am. Econ. Rev. 76, 940–955 (1986). [31] Eisenmann, T., Parker, G., Alstyne, M.W.V.: Strategies for Two-Sided Markets. Harv. Bus. Rev. (2006). [32] Economides, N., Katsamakas, E.: Two-Sided Competition of Proprietary vs. Open Source Technology Platforms and the Implications for the Software Industry. Manag. Sci. 52, 1057–1071 (2006). [33] Economides, N., Tåg, J.: Network neutrality on the Internet: A two-sided market analysis. Inf. Econ. Policy. 24, 91–104 (2012). [34] Reisinger, M.: Platform competition for advertisers and users in media markets. Int. J. Ind. Organ. 30, 243–252 (2012). [35] Baek, S., Kim, K., Altmann, J.: Role of platform providers in service networks: The case of Salesforce.com AppExchange. Presented at the , Proceedings of the IEEE Conference of Business Informatics July 14 (2014). [36] Rochwerger, B., Breitgand, D., Epstein, A., Hadas, D., Loy, I., Nagin, K., Tordsson, J., Ragusa, C., Villari, M., Clayman, S., Levy, E., Maraschini, A., Massonet, P., Muñoz, H., Tofetti, G.: Reservoir - When One Cloud Is Not Enough. Computer. 44, 44–51 (2011). [37] Altmann, J., Kashef, M. M.: Cost Model Based Service Placement in Federated Hybrid Clouds, Future Generation Computer Systems. The International Journal of Grid Computing and eScience, Elsevier, DOI:10.1016/j.future.2014.08.014 (2014). [38] Haile, N., Altmann, J.: Estimating the Value Obtained from Using a Software Service Platform. GECON 2013, LNCS 8193, pp.244-255. Springer, Switzerland (2013). [39] Breskovic, I., Brandic, I., Altmann, J.: Maximizing Liquidity in Cloud Markets through Standardization of Computational Resources. SOSE 2013, International Symposium on Service-Oriented System Engineering, San Jose, USA (2013). [40] Breskovic, I., Altmann, J., Brandic, I.: Creating Standardized Products for Electronic Markets. Future Generation Computer Systems, The International Journal of Grid Computing and eScience, Elsevier, vol. 29, no. 4, pp. 1000-1011, ISSN 0167-739X (2013). [41] Haile, N., Altmann, J.: Value Creation in IT Service Platforms through Two-Sided Network Effects. GECON 2012, LNCS pp.139-153, Springer, Berlin, Germany (2012). [42] Rohitratana, J., Altmann, J.: Impact of Pricing Schemes on a Market for Software-as-a-Service and Perpetual Software. Future Generation Computer Systems, The International Journal of Grid Computing and eScience, Elsevier, vol.28, no.8, pp.1328-1339, doi:10.1016/j.future.2012.03.019 (2012). [43] Kashef, M. M., Altmann, J.: A Cost Model for Hybrid Clouds. GECON2011, 8th International Workshop on Economics of Grids, Clouds, Systems, and Services, Springer LNCS, Paphos, Cyprus (2011). [44] Rohitratana, J., Altmann, J.: Agent-Based Simulations of the Software Market under Different Pricing Schemes for Software-as-a-Service and Perpetual Software. GECON 2010, Workshop on the Economics of Grids, Clouds, Systems, and Services, Springer LNCS 6269, Ischia, Italy (2010). [45] Bany Mohammed, A., Altmann, J., Hwang, J.: Cloud Computing Value Chains: Understanding Business and Value Creation in the Cloud. Economic Models and Algorithms for Distributed Systems, Birkhäuser, Springer, Autonomic Systems book series (2009). [46] Synergy Research Group, http://www.srgresearch.com (Accessed on July 2014).