Grahn, A. (2020). Emission Levels and Greenhouse Gas Emissions Disclosure: Evidence from Private Firms, Working paper, Freie Universität Berlin 2020, https://ssrn.com/abstract=3230783.

Grahn, A. (2020). Precision and Manipulation of Non-Financial Information: The Curious Case of Environmental Liability, Working Paper, Free Universität Berlin 2020, https://ssrn.com/abstract=3498324.

Bigus, J., Grahn, A., & Riediger, M. (2019). Earnings properties of co-operative firms, Working paper, Freie Universität Berlin 2019, https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3498310.

Bigus, J., Hillebrand, C. & Grahn, A. (2019). Bank Relationships, Earnings Quality and Cost of Debt: Cross-Country Evidence on Private Firms, Working paper, Freie Universität Berlin 2019, https://papers.ssrn.com/abstract=3498335.