Last edited 27 Nov 2020

Social time preference rate

The Green Book, Central Government Guidance On Appraisal And Evaluation, Published by HM Treasury in 2020, suggests: ‘Social Time Preference Rate or STPR is defined as the value society attaches to present, as opposed to future values.’

The 2018 Green Book suggested that Social Time Preference Rate (STPR): ‘…is defined as the value society attaches to present, as opposed to future, consumption.’

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