References  J. Haucap, R., Dewenter, Estimating Demand
Elasticities for Mobile Telecommunications in
Austria, Discussion paper No. 33, Institute for
Economic Policy, Helmut-Schmidt University,
 M. Boyer, The Measure and Regulation of
Competition in Telecommunications Markets,
D.T.V. Duc, N.P. Hung / VNU Journal of Science: Policy and Management Studies, Vol. 33, No. 2 (2017) 21-29 29
CIRANO (Center Interuniversity of Research
and Analysis Organization), 2005.
Foundations for Best Practices, Public Utility
Research Center, University of Florida, 29
 M. Jamison, S. Berg, L. Jiang, Analyzing
Telecommunications Market Competition: A
Comparison of Cases, Public Utility Research
Center, University of Florida, 4 November, 2009.
Broadband Markets, Intereconomics, 46 (2011)
1, pp. 27-35.
 Lưu Hương Ly, Evaluate the Market Power in
Law of Competition of Vietnam (Đánh giá sức
mạnh thị trường trong Luật cạnh tranh), Journal
of Journal of Legislative Studies (Tạp chí nghiên
PhapLuat/View_Detail.aspx?ItemID=84 on 8th
 K., Cowling, M. Waterson, Price-cost Margins
and Market Structure, Economica, 43 (1976)
171, pp. 267-274.
 J. Dharmapalan, Inside Telecommunications, EY
issue-12.pdf on 8th June 2017.
 A. S. George, A. Michael, K.A.P. Agyekum,
The Ghanaian Telecommunications Market
Concentration - Applying the US DOJ’s HHI
Criteria for Determining Market Power(s),
Working Paper, Ohio University, March, 2016.
 D. Boniecki et al., 2016, Middle East and Africa
Telecommunications Industry at Cliff’s Edge: Time
for Bold Decisions, McKinsey&Company, 2016.
 M. Naldi, M. Flamini, Interval Estimation of the
Herfindahl-Hirschman Index Under Incomplete
Modelling and Simulation, 2014, pp. 317-322.
 T. Robert , 2014, When bigger is Better: A
Critique of the Herindahl-Hirschman Index’s
Use to Evaluate Mergers in Network Industries,
Pace Law Review, 34(2), pp. 894-946.
 NCC (Nigerian Communications Commission),
Determination of Dominance in Selected
Communications Markets in Nigeria, 2014.
 R. Hawthorne, How Competitive are Markets for
Telecommunications Services in South Africa,
CCRED, University of Johannesburg, 2016.
 S. Hakim, S. Neaime, The Demand Elasticity of
Mobile Telephones in the Middle East and North
Africa, Research in International Business and
Finance, 32 (2014), pp. 1-14.
 J. Hausman, Efficiency Effects on the U.S.
Economy from Wireless Taxation, National Tax
Journal, 53 (2000), pp. 733-744.
 UK Competition Commission, Vodafone, O2,
Orange, T-Mobile, Report on References under
section 13 of the Telecommunication Acts 1984
on the Charges made by Vodafone, O2, Orange
and T-Mobile for Terminating Calls from Fixed
and Mobile Networks, London, February, 2003.
 L. Grzybowski, The Competitiveness of Mobile
European Union, Discussion Paper, Munich
Graduate School of Economics, July 2004.
Framework for Telecommunications Services in
Trinidad and Tobago, 2013.
 K. Dzieciolowski, J.W. Galbraith, Indicators of
Wireline/Wireless Competition in the Market for
Telecommunication Services, Project Report,
 MIC (Vietnam Ministry of Information and
Communication of Vietnam), Information and
Data on Information and Communication
Technology, 2006- 2016.
 ITU (International Telecommunication Union),
 R. Latimaha, Z. Bahari, Elasticity of Demand for
Cellular Phone Network Access in Malaysia,
Journal of Economy Malaysia, 50 (2016) 2,