We study the impact of a supply management mechanism (SMM) similar to the Market Stability Reserve proposed in 2015 which preserve the overall emissions cap and we comment on the recent cap-changing amendments. We provide an analytical description of the conditions under which an SMM alters the emissions abatement paths, affecting the expected length of the banking period and its variability. While abatement strategies of risk neutral firms solely depend on the former, for risk-averse firms changes in the latter would lead to higher risk premia, accelerated depletion of the bank and, consequently, further reduction of abatement and allowance prices. Cancellation of part of the reserve could partially outweigh the effect on risk premia sustaining allowance prices.

Sascha Kollenberg, Luca Taschini, Dynamic supply adjustment and banking under uncertainty in an emission trading scheme: The market stability reserve, European Economic Review, Volume 118, 2019, Pages 213-226, ISSN 0014-2921, https://doi.org/10.1016/j.euroecorev.2019.05.013.

Keep in touch with the Grantham Research Institute at LSE
Sign up to our newsletters and get the latest analysis, research, commentary and details of upcoming events.