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# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "greenbook" in publications use:'
type: software
license: MIT
title: 'greenbook: HM Treasury Green Book Cost-Benefit Analysis Primitives'
version: 0.1.0
identifiers:
- type: doi
  value: 10.32614/CRAN.package.greenbook
abstract: 'Implements cost-benefit analysis primitives from HM Treasury Green Book
  guidance (HM Treasury, 2022, 2026): the kinked Social Time Preference Rate (STPR),
  discount factors, net present value (NPV), equivalent annual cost, and real-terms
  rebasing using the GDP deflator. Designed for UK central government appraisal and
  evaluation. Bundled parameter tables carry vintage metadata for reproducibility.'
authors:
- family-names: Coverdale
  given-names: Charles
  email: charlesfcoverdale@gmail.com
preferred-citation:
  type: manual
  title: 'greenbook: HM Treasury Green Book Cost-Benefit Analysis Primitives'
  authors:
  - family-names: Coverdale
    given-names: Charles
    email: charlesfcoverdale@gmail.com
  year: '2026'
  notes: R package version 0.1.0
  url: https://github.com/charlescoverdale/greenbook
repository: https://charlescoverdale.r-universe.dev
repository-code: https://github.com/charlescoverdale/greenbook
commit: e0a6ac557b0cee3f380c245c5e202d678d40829f
url: https://github.com/charlescoverdale/greenbook
date-released: '2026-05-04'
contact:
- family-names: Coverdale
  given-names: Charles
  email: charlesfcoverdale@gmail.com
references:
- type: generic
  title: 'The Green Book: Central Government Guidance on Appraisal and Evaluation'
  authors:
  - name: HM Treasury
  year: '2026'
  url: https://www.gov.uk/government/publications/the-green-book-appraisal-and-evaluation-in-central-government