The irony is that Russia, PPP wise at least (nominal is heavily influenced by currency, aka financial flow restrictions), didn't really fall *that* badly when compared to the rest of the world (3.5% of the world 2024). Especially since Soviet relative was decreasing through 1980s anyway (Japan&Asian tigers displaced stagnating Soviet block...and that's before China even).You might call it whatever you want. But the Soviet Union had the world's second largest economy from WW2 until its collapse in 1991.
Largest single factor of former SU's relative economic fall is really Ukraine - factor of 4 when compared to 1990(1/3 of RSFSR in 1990, less than 1/10 2024).
Maybe more even than relative fall of this entire space. Speaks something about quality of governance in
Russian oligarchies/authocracies/monarchies never were at the forefront of governance. They, most of the time, weren't governed too badly - or Russia wouldn't exist in shape and form it still keeps.Russia will never be an economic power per se because its oligarchy
It, of course, holds a special award for substandard governance in 1970-1980s - but this is more of an exception, not norm.