Treasury test discount rate

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The Treasury Test Discount Rate (TDR) is a rate suggested by H.M. Treasury, and employed in COBA. It is an attempt to value the social time preference of society.

It was revalued in 2003 from 6% to 3.5%. This figure was taken from The Green Book 2003 page v.

[edit] Further reading

  • John Porter, Ron Bridle, Motorway Archive Trust (2002). The Motorway Achievement. Thomas Telford, 17–18. ISBN 0727731971.