57. The 2020 peer review shows that the MLI, which has been the main tool used to implement the minimum standard, has started to have a significant effect and is now strengthening the bilateral tax treaty network of jurisdictions that have ratified it.
58. This year’s peer review, however, reveals that the Action 6 minimum standard is being implemented unevenly and, in particular, that there is an important difference in the progress made on its implementation between jurisdictions that have ratified the MLI and other jurisdictions that have not.
59. Importantly, the peer review shows that jurisdictions that have not signed or ratified the MLI have still generally made no or very little progress in implementing the minimum standard. The 2020 peer review thus highlights that ratification of the MLI is an effective tool for jurisdictions that want to implement the minimum standard through the PPT.
60. The 2020 peer review also identifies gaps in the coverage of the MLI and the agreements of signatories or parties to the MLI that are neither covered under the MLI nor subject to bilateral renegotiations. In total, over 500 agreements concluded between jurisdictions that are members of the Inclusive Framework will not at this stage be modified by the MLI as one partner has either not listed the agreement under the MLI or signed the MLI.
61. Finally, the 2020 peer review identifies jurisdictions that made no or very little progress in the implementation of the minimum standard to ensure those jurisdictions can be provided with support when needed. In general, those jurisdictions have not signed the MLI or implemented anti-treaty-shopping measures in their treaties.
62. The 2020 peer review and the implementation issues identified provide useful insights for the ongoing review of the peer review methodology.