In the fast changing information and communication technology (ICT) environment, pricing and cost modeling practices are central to ensuring a fair, competitive and healthy ICT sector. Regulators face the challenging task of ensuring affordable access to ICTs as well as creating and maintaining investment incentives for all market participants. Striking the right balance requires regulators to be kept informed of current cost modeling and pricing methodologies, their impact and implications for the national competitive environment as well as the skills required by staff. As more countries transition to Next-Generation Networks (NGNs), understanding the development of new cost models is essential to enable heads of regulatory authorities to make informed strategic decisions to promote investment and development of the sector. These key costing issues are among a range of strategic issues has been addressed during this two day Executive-level Training for Heads of Regulatory Authorities organized in coordination with the Economics University of Vienna (Wirtschaftsuniversität Wien).