1 a study of taxpayer return on investment roi in florida public libraries part iii remi details by thomas tim lynch phd julie harrington state university center for economic forecasting and analysis department library division information services 2 table contents the impact value 3 introduction cost funding 4 service levels 6 methods 8 model methodology 10 assumptions 11 results 12 5 conclusions 14 appendix 15 listing 172 industrial sectors used social across is considerable felt wide spectrum though these effects are significant they not often explicitly quantified or visible fabric our market based system since users do pay them directly