[5] Multi-speed integration was envisaged by the Treaty on the formation of a single economic space of Ukraine, Russia, Belarus and Kazakhstan.
In 2007, a scientific article evaluated the legal framework for free trade in the post-Soviet space as a particular blend of "à la carte multilateralism" and "multiple bilateralism".
While a higher juridicization and comprehensive consolidation at the multilateral level of the CIS free trade regime may be recommended."
[6] After the conclusion of the Agreement on free trade in services by Russia, Armenia, Belarus, Kyrgyzstan, Kazakhstan, Tajikistan and Uzbekistan, the Information and Analytical Department of the CIS Executive Committee notes in October 2023 that at the moment a kind of pyramid of integration entities has developed in the CIS countries, differing in the depth of economic integration, and the implementation of free trade agreements and a number of other documents will lead to the formation of a full-fledged common economic space within the Commonwealth.
Within its participant countries, state borders will cease to be an obstacle to the free movement of goods, services, labor and capital.