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Research Report 700 Incorporating distributional impacts (equity) in the cost–benefit appraisal framework

Published: | Category: Economic prosperity , Research programme , Research & reports | Audience: General

Cost-benefit analyses assess the economics of a proposal by valuing (monetising) the costs and benefits to all members of society.

However, CBAs sum across a wide range of people and don’t calculate inequities between groups or individuals, or who ultimately benefits from the project.

The research was therefore carried out as the CBA appraisal approach does not adequately take distributional/equity effects into account.

The study identified a method that can be used to assess distributional/equity impacts, this method was then used to evaluate aspects of the Auckland Transport Alignment Project as a case study.

Keywords: equity effects, social cost–benefit analysis, transport distributional analysis


E Torshizian, Principal Economics, Auckland
A Byett, ECPC Limited, Taupō
E Isack, Principal Economics, Auckland
A Fehling, Principal Economics, Auckland
M Maralani, Principal Economics, Auckland

Publication details

  • Author:
  • Published: November 2022
  • Reference: 700
  • ISBN/ISSN: 978-1-99-004487-8