Publication
The Economic Impact of Accreditation
September 2023 
Eugene Isack is a seasoned economist with expertise in econometric modeling and a strong proficiency in geographic information systems (GIS) and the integration of large interconnected datasets. With an aptitude in pulling together disparate data sources, Eugene excels in leveraging complex datasets to extract insights on otherwise hidden patterns in public transport economics, and housing markets, among other sectors.
Eugene’s portfolio spans pivotal sectors, including climate adaptation, equity, housing, and public transport. His insights support policymakers, transport authorities, and other public sector agencies in making informed, data-driven decisions that respond to complex economic and social challenges.
Eugene is a Senior Economist at Principal Economics. Before joining, he held economist roles at the New Zealand Institute of Economic Research (NZIER) and Property Economics.
More informationEugene specialises in data-driven economic analysis. At Principal Economics, he has worked extensively in applying advanced statistical methods to assess transport equity, demand elasticity, and economic impacts. His work the linking of household demographics with vehicle kilometers traveled (VKT) and evaluations of policy levers for reducing transport emissions. With expertise in the Statistics NZ Integrated Data Infrastructure (IDI), Eugene leverages data to support smarter, more equitable policies.
- Urban Economics
- Geospatial Information Systems
- Statistics IDI
- Econometrics
- E. Torshizian, E., Isack, E., Fehling, A., 2025. The Demographics of Private Motor Vehicle Kilometres Travelled (VKT), Bev Uptake and Vehicle Ownership: Analytics and Findings from New Zealand
- E. Torshizian, E., Isack, E., Fehling, A., & Maralani M. 2024. The demographics of Vehicle Kilometres Travelled (VKT) in New Zealand. Waka Kotahi NZ Transport Agency.
- E. Torshizian, E. Isack, S. Adili. 2024. Establishing a methodology for integrated transport accessibility measures. Waka Kotahi NZ Transport Agency.
- E. Torshizian, A. Byett, P. Roberts, E. Isack, I. Walls, T. Litman, A. Fehling, M. Maralani, J. Darlington. 2023. Economic and behavioural policy levers for reducing transport GHG emission. Waka Kotahi. Lead equity analysis and transport modelling. Waka Kotahi NZ Transport Agency.
- E. Torshizian, E. Isack, E. Fehling, A. 2023. Climate change adaptation & investment decision making. Waka Kotahi NZ Transport Agency.
- E. Torshizian, E., Byett, A., Isack, E., Fehling, A., & Maralani M. (2022). Incorporating distributional impacts in the cost–benefit appraisal framework (Waka Kotahi NZ Transport Agency research report 700).
- Resource Economics, Principal Economics, Sapere 2021. Reforms to the Resource Management System: an analysis of expected impacts on Māori, the housing market and the natural environment
- E. Torshizian, E. Isack, E. Fehling, A. Drivers of house price growth in New Zealand. Working paper
