By Ben Aris in Peterborough Sanctions on Russia have had mixed results after two years of war, inflicting real pain on the Russian economy, but the lack of effective enforcement has muted their effect, apanel organised by Brussels-based think tank Bruegel to assess the efficacy of the sanctions with experts Elina Ribakova of the Peterson Institute for International Economics (PIIE) and Ben Higlenstock of the Kyiv School of Economics (KSE) said on March 6. Extreme sanctions were imposed in the first week of the war, but Ribakova lamented there was a lack of a coherent framework for setting obje…