1. [1] E. Johnston: Japan’s new plastic bag charge: What it means for consumers and the environment, The Japan Times, (2021)
2. [2] IKEA: IKEA Sustainability Report FY21, 2021. Retrieved from https://about.ikea.com/en/sustainability/sustainability report-highlights, Access date: 2022/09/16.
3. [3] K. Conrad: Price Competition and Product Differentiation When Consumers Care for the Environment. Environmental & Resource Economics, 31(2005), 1-19.
4. [4] C. Krishnaswamy: In Search of the Green Consumers: A Perceptual Study. Journal of services Research, 7(1) (2007), 173-191.
5. [5] R. Bemporad and M. Baranowski: Conscious Consumers Are Changing the Rules of Marketing. Are You Ready. Highlights from the BBMG Conscious Consumer Report, 2007.