Similar title to Godal, O., Ermoliev, Y., Klaassen, G., & Obersteiner, M. ORCID: https://orcid.org/0000-0001-6981-2769 (2003). Carbon trading with imperfectly observable emissions. Environmental and Resource Economics 25 (2) 151-169. 10.1023/A:1023914324084.