# Thomas Kinnaman Back to [[Authors/@BjornLomborg/People/People|Lomborg People]] · [[Authors/@BjornLomborg/BjornLomborg-x-profile|@BjornLomborg]] · Topic: [[Topics/Climate Change Science and Policy Debate/Climate Change Science and Policy Debate|Climate Change Science and Policy Debate]] **Role:** Environmental economist, Bucknell University ⚠️ (affiliation from memory); works on the economics of solid waste and recycling - Lead author of Kinnaman, Shinkuma & Yamamoto (2014), "The socially optimal recycling rate: Evidence from Japan", *Journal of Environmental Economics and Management* 68(1): 54–70, doi:[10.1016/j.jeem.2014.01.004](https://doi.org/10.1016/j.jeem.2014.01.004). The abstract finds socially optimal recycling rates "well below observed and mandated levels". - The specific optimal rates Lomborg's WSJ op-ed attributes to this line of work ("10%", and "7.6%" from a newer study) were not checked ⚠️. - See [[Authors/@BjornLomborg/Post Analyses/Post Analysis - BjornLomborg on Recycling Costs and Denmark (2026-10-07)|Recycling Costs and Denmark]].