Challenges and barriers in transition to circular economy business models Badri Gechbaia, Teona Maisuradze, Nino Paresashvili, Ketevan Goletiani and Levan Gvarishvili E3S Web Conf., 408 (2023) 01016 Published online: 02 August 2023 DOI: 10.1051/e3sconf/202340801016