It is said (attributed to George Bernard Shaw and many others) that God always favours the big battalions in war, meaning that whoever has the greatest resources is likely - sooner or later - to triumph over the many other factors that can play a part. If this is the case, NATO should have no difficulty in pushing Russia out of Ukraine, should it ever get round to offering full blooded support, as the combined GDP of NATO affiliated states is almost 10 times the GDP of Russia.
Russia, once thought of as having star investment potential, as part of the BRIC acronym (Brazil, Russia, India, China ) has long since fallen by the wayside. Many now perceive Russia as having more in common with the oil rich autocracies of the Middle East than with the high growth countries China and India. Russia typifies the "oil curse" phenomenon, where easy access by its elite to vast rents provided by mineral wealth has precluded development of more balanced economic activity, and ensured Russia's economy has fallen way behind others as a percentage of global GDP in recent years.
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See the Russia Review...