t vs benefits summary Scenario 1 (using survey data only) Years 2015 2016 2017 2018 2019 2020 2021 2022 2023 Total Cost per year £426,497 £115,739 £169,240 £132,871 £105,257 £123,138 £205,325 £112,627 £98,049 £1,488,743 Benefits per year £12,820 £46,111 £84,831 £115,225 £142,564 £131,787 £195,067 £179,648 £352,923 £1,260,977 Benefits – Costs -£413,677 -£69,628 -£84,409 -£17,646 £37,307 £8,649 -£10,258 £67,022 £254,874 -£227,766 Benefit / cost 3% 40% 50% 87% 135% 107% 95% 160% 360% 85% Scenario 2 (using survey and interviews data) Years 2015 2016 2017 2018 2019 2020 2021 2022 2023 Total Cost per year £426,497 £115,739 £169,240 £132,871 £105,257 £123,138 £205,325 £112,627 £98,049 £1,488,743 Social Finance Limited +44 (0) 20 7770 6836 87 Vauxhall Walk, London SE11 5HJ socialfinance.org.uk 108 Benefits per year £16,535 £59,471 £109,411 £148,612 £183,873 £169,972 £251,588 £231,701 £409,238 £1,580,401 Benefits – Costs -£409,963 -£56,268 -£59,829 £15,741 £78,615 £46,835 £46,263 £119,075 £311,189 £91,658 Benefit / cost 4% 51% 65% 112% 175% 138% 123% 206% 417% 106% Scenario 3 (using survey and interview data and a usage coefficient adjustment - base scenario) Years 2015 2016 2017 2018 2019 2020 2021 2022 2023 Total Cost per year £426,497 £115,739 £169,240 £132,871 £105,257 £123,138 £205,325 £112,627 £98,049 £1,488,743 Benefits per year £16,535 £59,471 £109,411 £148,612 £303,484 £285,405 £280,959 £325,912 £409,238 £1,939,027 Benefits – Costs -£409,963 -£56,268 -£59,829 £15,741 £198,227 £162,267 £75,635 £213,285 £311,189 £450,284 Benefit / cost 4% 51% 65% 112% 288% 232% 137% 289% 417% 130% Appendix 10 – Technical Advisory Group membership The members of the group include:  Rob Procter, University of Warwick - Professor of Social Informatics and Co-chair of the AI and Human Centre