Why War Economies don't collapse (until they do) - why Russia and Ukraine won't collapse tomorrow
Russia's economy is suffering, it's long term economic prospects have been badly wounded by a collapse in international trust, market denial, and a barrage of sanctions. Ukraine's economy is likewise under immense pressure - primarily from physical attacks by the Russian armed forces.
But it would be naïve to think that either is likely to collapse in the coming weeks and months. As long as the will to go on (and foreign support) remains in play, there is every reason to think that both nations will find a way to keep their economies going.