Are you thinking Russia has been doing socialism?
Looked like authoritarian state capitalism from here, even back when it was nominally 'socialist'. Power over the use of capital was concentrated in a few hands, to the enrichment of a small proportion of the population. And in recent years, the public assets have been acquired by a small number of private individuals, making it largely private capitalism, though probably with a lot of state support (US capitalists also enjoy significant support too). It now has wealth inequality to rival the US, with consequent severe poverty.
"The annual global wealth study published by the financial services group Credit Suisse says a mere 110 Russian citizens now control 35 percent of the total household wealth across the vast country."
"Russia is really an outlier," Shorrocks said. "Even compared with the U.S., which has more wealth inequality than most countries, [Russia] is still totally separate from the rest of the world."
Russia Leads In Wealth Inequality