Portrait of Chien Xen Ng

Chien Xen Ng : Consultant

Chien is a member of Oxera’s Transport, Analytics and Impact Assessment teams. He has extensive experience working in the aviation sector, on environmental issues and impact assessment. He has an in-depth understanding of the aviation sector, having worked on a number of high-profile cases, such as the merger between Air Canada and Air Transat, providing advice to hub airports on abuse of dominance issues and airline state aid issues arising as a result of the COVID-19 pandemic. Chien is experienced in providing cutting-edge analytics, having developed Oxera’s extensive dataset of airline fares and emissions based on Google Flights data. As part of other work he has done, Chien has also submitted compelling and influential analysis to regulators and competition authorities in the context of the price appeals of regulated utilities.

Chien joined Oxera in 2018 after completing an undergraduate degree at the University of Cambridge, focusing on econometrics and industrial organisation. In his previous work, Chien worked in the research department of a commercial bank, where he used time series techniques to forecast macroeconomic variables to predict turning points in business cycles.

Chien speaks English.

Tel: +44 (0) 1865 253025

Chien's specialisms include:

professional experience

  • Advice to Transport Canada on a proposed merger between Air Canada and Air Transat, considering a wide set of factors related to public interest. Designed and implemented an econometric approach to assessing price effects arising from the merger; carried out a welfare analysis of the merger, as well as other government objectives such as tourism (2020)

  • Advice to Airports Council International (ACI) EUROPE on the impact of Europe’s Fit for 55 proposals. Quantified the impact of the proposals on costs, airfares and demand, taking into account the competitive structure of airline route markets (2022)

  • Led Oxera’s response to the UK Department for Transport’s consultation on achieving net zero aviation by 2050. Developed a methodology to quantify the cost increase, pass-on and demand impacts of carbon abatement policies and technologies (2021)

  • Advice to a European airline on the effects of a large state aid measure on effective competition. Assessed market definition, entry barriers, airport capacity constraints, branding and network strength. Submitted a report to the European General Court (2021)

  • Advice to a European airline on an abuse of dominance claim. Provided analysis on issues relating to market definition, substitutability of different routes, dominance assessment and assessment of effects (2021)

  • Advice to a large UK water company on its approach to investment appraisals: designed an approach that incorporates best practice in economic assessments and that is aligned with strategic goals, such as the move to net zero carbon emissions (2020–)


  • Horncastle, A. and Ng, C.X. (forthcoming), ‘Efficiency analysis in the water industry in England & Wales’, Handbook of Production Economics, Vol 2, Springer, 2019.

  • Ng, C.X. (2019), ‘What is the impact of new rail stations on deprivation?’, Papers and Proceedings of the European Transport Conference, Dublin.

  • Elvery, S., Ng, C.X. and Shepherd, S. (2019), ‘What is the economic and financial case for new or local regional rail lines?’, Papers and Proceedings of the European Transport Conference, Dublin.


  • BA Economics, University of Cambridge, UK

Latest Insights:  Chien Xen Ng

11 minute read
Transport policy in the UK is at a critical juncture. The UK’s commitment to decarbonise transport will require adopting new technologies and changing behaviours, including a rapid uptake of electric…
8 minute read
On 4 October 2023, Prime Minister Rishi Sunak confirmed that Phase 2 of High Speed Two (HS2) would not go ahead.1 Was this the right call? How do we make…
8 minute read
Carbon pricing is often recommended by economists as a way to reduce greenhouse gas emissions. However, in practice, several different carbon prices are used in the aviation sector. What are…
10 minute read
While the aviation sector is still in the early stages of its recovery from the COVID-19 pandemic, there are signs that it is also rapidly changing. Airlines are experimenting with…

Back to top