Energy
Gas transition scenarios and sector pathways (New Zealand, 2022–24)
Synthesised existing modelling, engaged widely across industry, and built seven transition pathways. Advised on optimal gas sector futures against affordability and sustainability objectives; produced policy recommendations and concise stakeholder materials.
Cost and emissions impact of switching off gas distribution (New Zealand, 2025)
Led analysis of consumer impacts, network upgrade costs, demand shifts to electricity, and GHG outcomes under BAU vs. switch-off scenarios; workshopped assumptions with stakeholders.
Hydrogen strategy and economics (New Zealand & Pacific, 2020–23)
Built techno-economic models for green hydrogen (plant costs, utilisation, transport, power prices), briefed officials, and presented findings to industry. In the Pacific, assessed levelised costs and viable project opportunities across multiple countries.
Tax policy and administration
Independent advice on the 2023 wealth tax proposal
Led the analytical work advising Ministers of Finance and Revenue on the structure and fiscal impact of the 2023 wealth tax proposal. Assessed revenue potential, distributional effects, economic costs, and behavioural responses. Provided independent advice on whether the proposal should proceed.
Capital gains tax design advice for the 2020 Tax Working Group
Designed capital gains tax options and assessed their economic effects as part of the 2019 Tax Working Group process.
Restoration of interest deductibility for rental property investments
Led advice on restoring interest deductibility for rental property investors. Explained the economic implications for the housing market and wider New Zealand economy.
Policy, regulation and impact modelling
Resource management system – economic impact modelling (New Zealand, 2020–25)
Assessed and updated economic impacts of reform packages, supported Supplementary Analysis Reports for Cabinet, and refined modelling based on final policy decisions.
Building practitioners – regulatory impact assessment (New Zealand, 2023)
Quantified costs/benefits of licensing proposals, calculated NPVs, and tested defect-reduction thresholds.
Transport agency – institutions & funding options (New Zealand, 2023)
Developed options to depoliticise decisions, coordinate funding with medium-term needs, and briefed the board.
Transport and land use
Rail freight externalities review (New Zealand, 2025)
Reviewed methodologies used in existing reports on rail freight externalities (congestion, safety, emissions) and identified key methodological issues.
Zero-emission buses for NZTA – economics (New Zealand, 2023)
Led team that built a TCO and emissions model comparing BEB/HFCB/repowers versus retaining diesel with remaining life to guide efficient decarbonisation choices.
Dargaville plan change – expert economic evidence (New Zealand, 2023)
Prepared cost–benefit analysis for land-use change and appeared before commissioners to answer questions on methodology and findings.
Industry and markets
Milk price & competition – advisory and select committee evidence (New Zealand, 2018–22)
Analysed regulatory parameters (e.g., asset beta, pricing discretion), competition impacts, and provided expert evidence at a parliamentary hearing.
Livestock genetics pricing strategy (New Zealand, 2023)
Recommended a pricing approach for proprietary indices balancing return on capital with competition policy context.
Meat export quotas – allocation options review (New Zealand, 2023)
Compared non-price mechanisms across fairness, risk, value, and administrative burden; presented recommendations to the board.
Pacific development and PPPs
Energy sector reform & legal drafting (Nauru, 2024)
Advised the Nauru’s government on a new oversight model for Nauru Utilities Corporation (NUC), designing a practical framework to monitor service, cost, and investment performance. Developed the draft Bill, draft Cabinet Paper and supporting briefings.
Pacific Blue Economy advice (Pacific-wide, 2023)
Led a team developing a pipeline of investment opportunities for International Finance Corporation through market mapping, in-country validation, and DFI engagement across multiple countries.
Papua New Guinea Electric Vehicle Law Reform (PNG, 2025-26)
Advised PNG’s Government under a mandate with Global Green Growth Institute on required law changes to enable electric vehicle uptake. Conducted gap analysis of land transport, energy and electricity, fuel and customs, and environment and emissions laws and regulations to prepare drafting instructions and cabinet documents
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