On 18 November 2013 the EU Commission published their report which concluded that "the participation of the small-sized countries in the EEA is not judged to be a viable option at present due to the political and institutional reasons", but that Association Agreements were a more feasible mechanism to integrate the microstates into the internal market, preferably via a single multilateral agreement with all three states.[11] In December 2014 the Council of the European Union approved negotiations being launched on such an agreement,[12] and they began in March 2015.[13]